Backwards compatibility fix for version1 suspend/resume.

Another sync point - numerous fixes & clean ups.
Synchronise repository / 2.4.21 support
2025-11-03 08:23:48 +03:00 · 2003-07-05 23:20:43 +00:00 · 2003-07-04 22:34:56 +00:00 · 2003-07-04 19:38:49 +00:00 · 2003-07-01 21:20:58 +00:00 · 2003-05-06 12:22:24 +00:00
138 changed files with 7355 additions and 1920 deletions
--- a/2
+++ b/2
@@ -1 +1 @@
-1.95.14-cvs (2003-01-08)
+2.00.00-cvs (2003-07-04)
--- a/17
+++ b/17
@@ -1,4 +1,13 @@
-Mondy 18th November 2002
+Wednesday 30th April 2003
+=========================
+A pvmove implementation is now available for the new metadata format.
+
+When running a command that allocates space (e.g. lvcreate), you can now
+restrict not only which disk(s) may be used but also the Physical Extents 
+on those disks.  e.g. lvcreate -L 10 vg1 /dev/hda6:1000-2000:3000-4000
+
+
+Monday 18th November 2002
 ========================

 The new format of LVM metadata is ready for you to test!
@@ -15,7 +24,7 @@ While testing, we recommend turning logging on in the configuration file
 to provide us with diagnostic information:
  log {
        file="/tmp/lvm2.log"
-	level=6
+	level=7
  }

 You should schedule regular backups of your configuration file and
@@ -65,7 +74,7 @@ changes.
 What's not finished?
 ====================
 The internal cache.  If you turn on debugging output you'll see lots of
-repeated disk reads, many of which will eventually get optimised out.
+repeated messages, many of which will eventually get optimised out.

 --test sometimes causes a command to fail (e.g. vgconvert --test) even 
 though the real command would work: again, fixing this is waiting for 
@@ -78,9 +87,7 @@ finds something unexpected.  This applies particularly to tools that
 work on more than one volume group at once (e.g. vgsplit).

 Display output.  Some metadata information cannot yet be displayed.
-Work has started on new display tools.

 Recovery tools to salvage "lost" metadata directly from the disks:
 but we hope the new format will mean such tools are hardly ever needed!

-
--- a/autoconf/config.guess
+++ b/autoconf/config.guess
--- a/autoconf/config.sub
+++ b/autoconf/config.sub
@@ -1,6 +1,10 @@
 #! /bin/sh
-# Configuration validation subroutine script, version 1.1.
-#   Copyright (C) 1991, 92-97, 1998, 1999 Free Software Foundation, Inc.
+# Configuration validation subroutine script.
+#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
+#   Free Software Foundation, Inc.
+
+timestamp='2001-09-07'
+
 # This file is (in principle) common to ALL GNU software.
 # The presence of a machine in this file suggests that SOME GNU software
 # can handle that machine.  It does not imply ALL GNU software can.
@@ -25,6 +29,8 @@
 # configuration script generated by Autoconf, you may include it under
 # the same distribution terms that you use for the rest of that program.

+# Please send patches to <config-patches@gnu.org>.
+#
 # Configuration subroutine to validate and canonicalize a configuration type.
 # Supply the specified configuration type as an argument.
 # If it is invalid, we print an error message on stderr and exit with code 1.
@@ -45,30 +51,73 @@
 #	CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
 # It is wrong to echo any other type of specification.

-if [ x$1 = x ]
-then
-	echo Configuration name missing. 1>&2
-	echo "Usage: $0 CPU-MFR-OPSYS" 1>&2
-	echo "or     $0 ALIAS" 1>&2
-	echo where ALIAS is a recognized configuration type. 1>&2
-	exit 1
-fi
+me=`echo "$0" | sed -e 's,.*/,,'`

-# First pass through any local machine types.
-case $1 in
-	*local*)
-		echo $1
-		exit 0
-		;;
-	*)
-	;;
+usage="\
+Usage: $0 [OPTION] CPU-MFR-OPSYS
+       $0 [OPTION] ALIAS
+
+Canonicalize a configuration name.
+
+Operation modes:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.sub ($timestamp)
+
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
+Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit 0 ;;
+    --version | -v )
+       echo "$version" ; exit 0 ;;
+    --help | --h* | -h )
+       echo "$usage"; exit 0 ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help"
+       exit 1 ;;
+
+    *local*)
+       # First pass through any local machine types.
+       echo $1
+       exit 0;;
+
+    * )
+       break ;;
+  esac
+done
+
+case $# in
+ 0) echo "$me: missing argument$help" >&2
+    exit 1;;
+ 1) ;;
+ *) echo "$me: too many arguments$help" >&2
+    exit 1;;
 esac

 # Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
 # Here we must recognize all the valid KERNEL-OS combinations.
 maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
 case $maybe_os in
-  linux-gnu*)
+  nto-qnx* | linux-gnu* | storm-chaos* | os2-emx* | windows32-*)
    os=-$maybe_os
    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
    ;;
@@ -94,7 +143,7 @@ case $os in
 	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
 	-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
 	-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
-	-apple)
+	-apple | -axis)
 		os=
 		basic_machine=$1
 		;;
@@ -105,9 +154,17 @@ case $os in
 	-scout)
 		;;
 	-wrs)
-		os=vxworks
+		os=-vxworks
 		basic_machine=$1
 		;;
+	-chorusos*)
+		os=-chorusos
+		basic_machine=$1
+		;;
+ 	-chorusrdb)
+ 		os=-chorusrdb
+		basic_machine=$1
+ 		;;
 	-hiux*)
 		os=-hiuxwe2
 		;;
@@ -156,33 +213,60 @@ case $os in
 	-psos*)
 		os=-psos
 		;;
+	-mint | -mint[0-9]*)
+		basic_machine=m68k-atari
+		os=-mint
+		;;
 esac

 # Decode aliases for certain CPU-COMPANY combinations.
 case $basic_machine in
 	# Recognize the basic CPU types without company name.
 	# Some are omitted here because they have special meanings below.
-	tahoe | i860 | ia64 | m32r | m68k | m68000 | m88k | ns32k | arc | arm \
-		| arme[lb] | pyramid | mn10200 | mn10300 | tron | a29k \
-		| 580 | i960 | h8300 \
-		| hppa | hppa1.0 | hppa1.1 | hppa2.0 | hppa2.0w | hppa2.0n \
-		| alpha | alphaev[4-7] | alphaev56 | alphapca5[67] \
-		| we32k | ns16k | clipper | i370 | sh | powerpc | powerpcle \
-		| 1750a | dsp16xx | pdp11 | mips16 | mips64 | mipsel | mips64el \
-		| mips64orion | mips64orionel | mipstx39 | mipstx39el \
-		| mips64vr4300 | mips64vr4300el | mips64vr4100 | mips64vr4100el \
-		| mips64vr5000 | miprs64vr5000el | mcore \
-		| sparc | sparclet | sparclite | sparc64 | sparcv9 | v850 | c4x \
-		| thumb | d10v)
+	1750a | 580 \
+	| a29k \
+	| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
+	| arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr \
+	| c4x | clipper \
+	| d10v | d30v | dsp16xx \
+	| fr30 \
+	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
+	| i370 | i860 | i960 | ia64 \
+	| m32r | m68000 | m68k | m88k | mcore \
+	| mips16 | mips64 | mips64el | mips64orion | mips64orionel \
+	| mips64vr4100 | mips64vr4100el | mips64vr4300 \
+	| mips64vr4300el | mips64vr5000 | mips64vr5000el \
+	| mipsbe | mipseb | mipsel | mipsle | mipstx39 | mipstx39el \
+	| mipsisa32 \
+	| mn10200 | mn10300 \
+	| ns16k | ns32k \
+	| openrisc \
+	| pdp10 | pdp11 | pj | pjl \
+	| powerpc | powerpc64 | powerpc64le | powerpcle | ppcbe \
+	| pyramid \
+	| s390 | s390x \
+	| sh | sh[34] | sh[34]eb | shbe | shle \
+	| sparc | sparc64 | sparclet | sparclite | sparcv9 | sparcv9b \
+	| stormy16 | strongarm \
+	| tahoe | thumb | tic80 | tron \
+	| v850 \
+	| we32k \
+	| x86 | xscale \
+	| z8k)
 		basic_machine=$basic_machine-unknown
 		;;
-	m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | z8k | v70 | h8500 | w65)
+	m6811 | m68hc11 | m6812 | m68hc12)
+		# Motorola 68HC11/12.
+		basic_machine=$basic_machine-unknown
+		os=-none
+		;;
+	m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k)
 		;;

 	# We use `pc' rather than `unknown'
 	# because (1) that's what they normally are, and
 	# (2) the word "unknown" tends to confuse beginning users.
-	i[34567]86)
+	i*86 | x86_64)
 	  basic_machine=$basic_machine-pc
 	  ;;
 	# Object if more than one company name word.
@@ -191,24 +275,43 @@ case $basic_machine in
 		exit 1
 		;;
 	# Recognize the basic CPU types with company name.
-	# FIXME: clean up the formatting here.
-	vax-* | tahoe-* | i[34567]86-* | i860-* | ia64-* | m32r-* | m68k-* | m68000-* \
-	      | m88k-* | sparc-* | ns32k-* | fx80-* | arc-* | arm-* | c[123]* \
-	      | mips-* | pyramid-* | tron-* | a29k-* | romp-* | rs6000-* \
-	      | power-* | none-* | 580-* | cray2-* | h8300-* | h8500-* | i960-* \
-	      | xmp-* | ymp-* \
-	      | hppa-* | hppa1.0-* | hppa1.1-* | hppa2.0-* | hppa2.0w-* | hppa2.0n-* \
-	      | alpha-* | alphaev[4-7]-* | alphaev56-* | alphapca5[67]-* \
-	      | we32k-* | cydra-* | ns16k-* | pn-* | np1-* | xps100-* \
-	      | clipper-* | orion-* \
-	      | sparclite-* | pdp11-* | sh-* | powerpc-* | powerpcle-* \
-	      | sparc64-* | sparcv9-* | sparc86x-* | mips16-* | mips64-* | mipsel-* \
-	      | mips64el-* | mips64orion-* | mips64orionel-* \
-	      | mips64vr4100-* | mips64vr4100el-* | mips64vr4300-* | mips64vr4300el-* \
-	      | mipstx39-* | mipstx39el-* | mcore-* \
-	      | f301-* | armv*-* | t3e-* \
-	      | m88110-* | m680[01234]0-* | m683?2-* | m68360-* | z8k-* | d10v-* \
-	      | thumb-* | v850-* | d30v-* | tic30-* | c30-* )
+	580-* \
+	| a29k-* \
+	| alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
+	| alphapca5[67]-* | arc-* \
+	| arm-*  | armbe-* | armle-* | armv*-* \
+	| bs2000-* \
+	| c[123]* | c30-* | [cjt]90-* | c54x-* \
+	| clipper-* | cray2-* | cydra-* \
+	| d10v-* | d30v-* \
+	| elxsi-* \
+	| f30[01]-* | f700-* | fr30-* | fx80-* \
+	| h8300-* | h8500-* \
+	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
+	| i*86-* | i860-* | i960-* | ia64-* \
+	| m32r-* \
+	| m68000-* | m680[01234]0-* | m68360-* | m683?2-* | m68k-* \
+	| m88110-* | m88k-* | mcore-* \
+	| mips-* | mips16-* | mips64-* | mips64el-* | mips64orion-* \
+	| mips64orionel-* | mips64vr4100-* | mips64vr4100el-* \
+	| mips64vr4300-* | mips64vr4300el-* | mipsbe-* | mipseb-* \
+	| mipsle-* | mipsel-* | mipstx39-* | mipstx39el-* \
+	| none-* | np1-* | ns16k-* | ns32k-* \
+	| orion-* \
+	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
+	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* | ppcbe-* \
+	| pyramid-* \
+	| romp-* | rs6000-* \
+	| s390-* | s390x-* \
+	| sh-* | sh[34]-* | sh[34]eb-* | shbe-* | shle-* \
+	| sparc-* | sparc64-* | sparc86x-* | sparclite-* \
+	| sparcv9-* | sparcv9b-* | stormy16-* | strongarm-* | sv1-* \
+	| t3e-* | tahoe-* | thumb-* | tic30-* | tic54x-* | tic80-* | tron-* \
+	| v850-* | vax-* \
+	| we32k-* \
+	| x86-* | x86_64-* | xmp-* | xps100-* | xscale-* \
+	| ymp-* \
+	| z8k-*)
 		;;
 	# Recognize the various machine names and aliases which stand
 	# for a CPU type and a company and sometimes even an OS.
@@ -245,14 +348,14 @@ case $basic_machine in
 		os=-sysv
 		;;
 	amiga | amiga-*)
-		basic_machine=m68k-cbm
+		basic_machine=m68k-unknown
 		;;
 	amigaos | amigados)
-		basic_machine=m68k-cbm
+		basic_machine=m68k-unknown
 		os=-amigaos
 		;;
 	amigaunix | amix)
-		basic_machine=m68k-cbm
+		basic_machine=m68k-unknown
 		os=-sysv4
 		;;
 	apollo68)
@@ -299,13 +402,16 @@ case $basic_machine in
 		basic_machine=cray2-cray
 		os=-unicos
 		;;
-	[ctj]90-cray)
-		basic_machine=c90-cray
+	[cjt]90)
+		basic_machine=${basic_machine}-cray
 		os=-unicos
 		;;
 	crds | unos)
 		basic_machine=m68k-crds
 		;;
+	cris | cris-* | etrax*)
+		basic_machine=cris-axis
+		;;
 	da30 | da30-*)
 		basic_machine=m68k-da30
 		;;
@@ -353,6 +459,10 @@ case $basic_machine in
 		basic_machine=tron-gmicro
 		os=-sysv
 		;;
+	go32)
+		basic_machine=i386-pc
+		os=-go32
+		;;
 	h3050r* | hiux*)
 		basic_machine=hppa1.1-hitachi
 		os=-hiuxwe2
@@ -426,22 +536,21 @@ case $basic_machine in
 		;;
 	i370-ibm* | ibm*)
 		basic_machine=i370-ibm
-		os=-mvs
 		;;
 # I'm not sure what "Sysv32" means.  Should this be sysv3.2?
-	i[34567]86v32)
+	i*86v32)
 		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
 		os=-sysv32
 		;;
-	i[34567]86v4*)
+	i*86v4*)
 		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
 		os=-sysv4
 		;;
-	i[34567]86v)
+	i*86v)
 		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
 		os=-sysv
 		;;
-	i[34567]86sol2)
+	i*86sol2)
 		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
 		os=-solaris2
 		;;
@@ -453,14 +562,6 @@ case $basic_machine in
 		basic_machine=i386-unknown
 		os=-vsta
 		;;
-	i386-go32 | go32)
-		basic_machine=i386-unknown
-		os=-go32
-		;;
-	i386-mingw32 | mingw32)
-		basic_machine=i386-unknown
-		os=-mingw32
-		;;
 	iris | iris4d)
 		basic_machine=mips-sgi
 		case $os in
@@ -486,10 +587,14 @@ case $basic_machine in
 		basic_machine=ns32k-utek
 		os=-sysv
 		;;
+	mingw32)
+		basic_machine=i386-pc
+		os=-mingw32
+		;;
 	miniframe)
 		basic_machine=m68000-convergent
 		;;
-	*mint | *MiNT)
+	*mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*)
 		basic_machine=m68k-atari
 		os=-mint
 		;;
@@ -507,14 +612,22 @@ case $basic_machine in
 	mips3*)
 		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown
 		;;
+	mmix*)
+		basic_machine=mmix-knuth
+		os=-mmixware
+		;;
 	monitor)
 		basic_machine=m68k-rom68k
 		os=-coff
 		;;
 	msdos)
-		basic_machine=i386-unknown
+		basic_machine=i386-pc
 		os=-msdos
 		;;
+	mvs)
+		basic_machine=i370-ibm
+		os=-mvs
+		;;
 	ncr3000)
 		basic_machine=i486-ncr
 		os=-sysv4
@@ -524,7 +637,7 @@ case $basic_machine in
 		os=-netbsd
 		;;
 	netwinder)
-		basic_machine=armv4l-corel
+		basic_machine=armv4l-rebel
 		os=-linux
 		;;
 	news | news700 | news800 | news900)
@@ -572,9 +685,16 @@ case $basic_machine in
 		basic_machine=i960-intel
 		os=-mon960
 		;;
+	nonstopux)
+		basic_machine=mips-compaq
+		os=-nonstopux
+		;;
 	np1)
 		basic_machine=np1-gould
 		;;
+	nsr-tandem)
+		basic_machine=nsr-tandem
+		;;
 	op50n-* | op60c-*)
 		basic_machine=hppa1.1-oki
 		os=-proelf
@@ -604,28 +724,28 @@ case $basic_machine in
        pc532 | pc532-*)
 		basic_machine=ns32k-pc532
 		;;
-	pentium | p5 | k5 | k6 | nexen)
+	pentium | p5 | k5 | k6 | nexgen)
 		basic_machine=i586-pc
 		;;
-	pentiumpro | p6 | 6x86)
+	pentiumpro | p6 | 6x86 | athlon)
 		basic_machine=i686-pc
 		;;
 	pentiumii | pentium2)
-		basic_machine=i786-pc
+		basic_machine=i686-pc
 		;;
-	pentium-* | p5-* | k5-* | k6-* | nexen-*)
+	pentium-* | p5-* | k5-* | k6-* | nexgen-*)
 		basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'`
 		;;
-	pentiumpro-* | p6-* | 6x86-*)
+	pentiumpro-* | p6-* | 6x86-* | athlon-*)
 		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
 		;;
 	pentiumii-* | pentium2-*)
-		basic_machine=i786-`echo $basic_machine | sed 's/^[^-]*-//'`
+		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
 		;;
 	pn)
 		basic_machine=pn-gould
 		;;
-	power)	basic_machine=rs6000-ibm
+	power)	basic_machine=power-ibm
 		;;
 	ppc)	basic_machine=powerpc-unknown
 	        ;;
@@ -637,9 +757,23 @@ case $basic_machine in
 	ppcle-* | powerpclittle-*)
 		basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'`
 		;;
+	ppc64)	basic_machine=powerpc64-unknown
+	        ;;
+	ppc64-*) basic_machine=powerpc64-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	ppc64le | powerpc64little | ppc64-le | powerpc64-little)
+		basic_machine=powerpc64le-unknown
+	        ;;
+	ppc64le-* | powerpc64little-*)
+		basic_machine=powerpc64le-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
 	ps2)
 		basic_machine=i386-ibm
 		;;
+	pw32)
+		basic_machine=i586-unknown
+		os=-pw32
+		;;
 	rom68k)
 		basic_machine=m68k-rom68k
 		os=-coff
@@ -719,6 +853,10 @@ case $basic_machine in
 	sun386 | sun386i | roadrunner)
 		basic_machine=i386-sun
 		;;
+	sv1)
+		basic_machine=sv1-cray
+		os=-unicos
+		;;
 	symmetry)
 		basic_machine=i386-sequent
 		os=-dynix
@@ -727,6 +865,10 @@ case $basic_machine in
 		basic_machine=t3e-cray
 		os=-unicos
 		;;
+	tic54x | c54x*)
+		basic_machine=tic54x-unknown
+		os=-coff
+		;;
 	tx39)
 		basic_machine=mipstx39-unknown
 		;;
@@ -779,6 +921,10 @@ case $basic_machine in
 		basic_machine=hppa1.1-winbond
 		os=-proelf
 		;;
+	windows32)
+		basic_machine=i386-pc
+		os=-windows32-msvcrt
+		;;
 	xmp)
 		basic_machine=xmp-cray
 		os=-unicos
@@ -822,13 +968,20 @@ case $basic_machine in
 	vax)
 		basic_machine=vax-dec
 		;;
+	pdp10)
+		# there are many clones, so DEC is not a safe bet
+		basic_machine=pdp10-unknown
+		;;
 	pdp11)
 		basic_machine=pdp11-dec
 		;;
 	we32k)
 		basic_machine=we32k-att
 		;;
-	sparc | sparcv9)
+	sh3 | sh4 | sh3eb | sh4eb)
+		basic_machine=sh-unknown
+		;;
+	sparc | sparcv9 | sparcv9b)
 		basic_machine=sparc-sun
 		;;
        cydra)
@@ -850,6 +1003,9 @@ case $basic_machine in
 		basic_machine=c4x-none
 		os=-coff
 		;;
+	*-unknown)
+		# Make sure to match an already-canonicalized machine name.
+		;;
 	*)
 		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
 		exit 1
@@ -906,14 +1062,30 @@ case $os in
 	      | -lynxos* | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
 	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
 	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
+	      | -chorusos* | -chorusrdb* \
 	      | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
 	      | -mingw32* | -linux-gnu* | -uxpv* | -beos* | -mpeix* | -udk* \
-	      | -interix* | -uwin* | -rhapsody* | -openstep* | -oskit*)
+	      | -interix* | -uwin* | -rhapsody* | -darwin* | -opened* \
+	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
+	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
+	      | -os2* | -vos*)
 	# Remember, each alternative MUST END IN *, to match a version number.
 		;;
+	-qnx*)
+		case $basic_machine in
+		    x86-* | i*86-*)
+			;;
+		    *)
+			os=-nto$os
+			;;
+		esac
+		;;
+	-nto*)
+		os=-nto-qnx
+		;;
 	-sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \
 	      | -windows* | -osx | -abug | -netware* | -os9* | -beos* \
-	      | -macos* | -mpw* | -magic* | -mon960* | -lnews*)
+	      | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*)
 		;;
 	-mac*)
 		os=`echo $os | sed -e 's|mac|macos|'`
@@ -927,6 +1099,12 @@ case $os in
 	-sunos6*)
 		os=`echo $os | sed -e 's|sunos6|solaris3|'`
 		;;
+	-opened*)
+		os=-openedition
+		;;
+	-wince*)
+		os=-wince
+		;;
 	-osfrose*)
 		os=-osfrose
 		;;
@@ -951,6 +1129,9 @@ case $os in
 	-ns2 )
 	        os=-nextstep2
 		;;
+	-nsk*)
+		os=-nsk
+		;;
 	# Preserve the version number of sinix5.
 	-sinix5.*)
 		os=`echo $os | sed -e 's|sinix|sysv|'`
@@ -985,7 +1166,7 @@ case $os in
 	-xenix)
 		os=-xenix
 		;;
-        -*mint | -*MiNT)
+        -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
 	        os=-mint
 		;;
 	-none)
@@ -1013,12 +1194,15 @@ case $basic_machine in
 	*-acorn)
 		os=-riscix1.2
 		;;
-	arm*-corel)
+	arm*-rebel)
 		os=-linux
 		;;
 	arm*-semi)
 		os=-aout
 		;;
+	pdp10-*)
+		os=-tops20
+		;;
        pdp11-*)
 		os=-none
 		;;
@@ -1127,7 +1311,7 @@ case $basic_machine in
 	*-masscomp)
 		os=-rtu
 		;;
-	f301-fujitsu)
+	f30[01]-fujitsu | f700-fujitsu)
 		os=-uxpv
 		;;
 	*-rom68k)
@@ -1187,7 +1371,7 @@ case $basic_machine in
 			-genix*)
 				vendor=ns
 				;;
-			-mvs*)
+			-mvs* | -opened*)
 				vendor=ibm
 				;;
 			-ptx*)
@@ -1205,12 +1389,23 @@ case $basic_machine in
 			-mpw* | -macos*)
 				vendor=apple
 				;;
-			-*mint | -*MiNT)
+			-*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
 				vendor=atari
 				;;
+			-vos*)
+				vendor=stratus
+				;;
 		esac
 		basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"`
 		;;
 esac

 echo $basic_machine$os
+exit 0
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
--- a/269
+++ b/269
@@ -1595,6 +1595,101 @@ fi



+# Do some error checking and defaulting for the host and target type.
+# The inputs are:
+#    configure --host=HOST --target=TARGET --build=BUILD NONOPT
+#
+# The rules are:
+# 1. You are not allowed to specify --host, --target, and nonopt at the
+#    same time.
+# 2. Host defaults to nonopt.
+# 3. If nonopt is not specified, then host defaults to the current host,
+#    as determined by config.guess.
+# 4. Target and build default to nonopt.
+# 5. If nonopt is not specified, then target and build default to host.
+
+# The aliases save the names the user supplied, while $host etc.
+# will get canonicalized.
+case $host---$target---$nonopt in
+NONE---*---* | *---NONE---* | *---*---NONE) ;;
+*) { echo "configure: error: can only configure for one host and one target at a time" 1>&2; exit 1; } ;;
+esac
+
+
+# Make sure we can run config.sub.
+if ${CONFIG_SHELL-/bin/sh} $ac_config_sub sun4 >/dev/null 2>&1; then :
+else { echo "configure: error: can not run $ac_config_sub" 1>&2; exit 1; }
+fi
+
+echo $ac_n "checking host system type""... $ac_c" 1>&6
+echo "configure:1626: checking host system type" >&5
+
+host_alias=$host
+case "$host_alias" in
+NONE)
+  case $nonopt in
+  NONE)
+    if host_alias=`${CONFIG_SHELL-/bin/sh} $ac_config_guess`; then :
+    else { echo "configure: error: can not guess host type; you must specify one" 1>&2; exit 1; }
+    fi ;;
+  *) host_alias=$nonopt ;;
+  esac ;;
+esac
+
+host=`${CONFIG_SHELL-/bin/sh} $ac_config_sub $host_alias`
+host_cpu=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
+host_vendor=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
+host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
+echo "$ac_t""$host" 1>&6
+
+echo $ac_n "checking target system type""... $ac_c" 1>&6
+echo "configure:1647: checking target system type" >&5
+
+target_alias=$target
+case "$target_alias" in
+NONE)
+  case $nonopt in
+  NONE) target_alias=$host_alias ;;
+  *) target_alias=$nonopt ;;
+  esac ;;
+esac
+
+target=`${CONFIG_SHELL-/bin/sh} $ac_config_sub $target_alias`
+target_cpu=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
+target_vendor=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
+target_os=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
+echo "$ac_t""$target" 1>&6
+
+echo $ac_n "checking build system type""... $ac_c" 1>&6
+echo "configure:1665: checking build system type" >&5
+
+build_alias=$build
+case "$build_alias" in
+NONE)
+  case $nonopt in
+  NONE) build_alias=$host_alias ;;
+  *) build_alias=$nonopt ;;
+  esac ;;
+esac
+
+build=`${CONFIG_SHELL-/bin/sh} $ac_config_sub $build_alias`
+build_cpu=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
+build_vendor=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
+build_os=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
+echo "$ac_t""$build" 1>&6
+
+test "$host_alias" != "$target_alias" &&
+  test "$program_prefix$program_suffix$program_transform_name" = \
+    NONENONEs,x,x, &&
+  program_prefix=${target_alias}-
+
+
+case "$host_os" in
+	linux*)
+		CFLAGS= ;;
+esac
+
+

 # Check whether --with-user or --without-user was given.
 if test "${with_user+set}" = set; then
@@ -1629,6 +1724,10 @@ if [ "x$LVM1" != xnone -a "x$LVM1" != xinternal -a "x$LVM1" != xshared ];
 exit
 fi;

+if test x$LVM1 = xinternal; then
+	CFLAGS="$CFLAGS -DLVM1_INTERNAL"
+fi
+
 # Check whether --enable-jobs or --disable-jobs was given.
 if test "${enable_jobs+set}" = set; then
  enableval="$enable_jobs"
@@ -1657,6 +1756,10 @@ else
 fi


+if test x$READLINE = xyes; then
+	CFLAGS="$CFLAGS -DREADLINE_SUPPORT"
+fi
+
 # Check whether --enable-debug or --disable-debug was given.
 if test "${enable_debug+set}" = set; then
  enableval="$enable_debug"
@@ -1677,19 +1780,23 @@ else
 fi


+if test x$DEVMAPPER = xyes; then
+	CFLAGS="$CFLAGS -DDEVMAPPER_SUPPORT"
+fi
+
 if [ "x$exec_prefix" = xNONE -a "x$prefix" = xNONE ];
 then  exec_prefix="";
 fi;

 if test $ac_cv_prog_gcc = yes; then
    echo $ac_n "checking whether ${CC-cc} needs -traditional""... $ac_c" 1>&6
-echo "configure:1687: checking whether ${CC-cc} needs -traditional" >&5
+echo "configure:1794: checking whether ${CC-cc} needs -traditional" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc_traditional'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
    ac_pattern="Autoconf.*'x'"
  cat > conftest.$ac_ext <<EOF
-#line 1693 "configure"
+#line 1800 "configure"
 #include "confdefs.h"
 #include <sgtty.h>
 Autoconf TIOCGETP
@@ -1707,7 +1814,7 @@ rm -f conftest*

  if test $ac_cv_prog_gcc_traditional = no; then
    cat > conftest.$ac_ext <<EOF
-#line 1711 "configure"
+#line 1818 "configure"
 #include "confdefs.h"
 #include <termio.h>
 Autoconf TCGETA
@@ -1729,12 +1836,12 @@ echo "$ac_t""$ac_cv_prog_gcc_traditional" 1>&6
 fi

 echo $ac_n "checking return type of signal handlers""... $ac_c" 1>&6
-echo "configure:1733: checking return type of signal handlers" >&5
+echo "configure:1840: checking return type of signal handlers" >&5
 if eval "test \"`echo '$''{'ac_cv_type_signal'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
  cat > conftest.$ac_ext <<EOF
-#line 1738 "configure"
+#line 1845 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <signal.h>
@@ -1751,7 +1858,7 @@ int main() {
 int i;
 ; return 0; }
 EOF
-if { (eval echo configure:1755: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1862: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  ac_cv_type_signal=void
 else
@@ -1770,12 +1877,12 @@ EOF


 echo $ac_n "checking for vprintf""... $ac_c" 1>&6
-echo "configure:1774: checking for vprintf" >&5
+echo "configure:1881: checking for vprintf" >&5
 if eval "test \"`echo '$''{'ac_cv_func_vprintf'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
  cat > conftest.$ac_ext <<EOF
-#line 1779 "configure"
+#line 1886 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char vprintf(); below.  */
@@ -1798,7 +1905,7 @@ vprintf();

 ; return 0; }
 EOF
-if { (eval echo configure:1802: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1909: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
  rm -rf conftest*
  eval "ac_cv_func_vprintf=yes"
 else
@@ -1822,12 +1929,12 @@ fi

 if test "$ac_cv_func_vprintf" != yes; then
 echo $ac_n "checking for _doprnt""... $ac_c" 1>&6
-echo "configure:1826: checking for _doprnt" >&5
+echo "configure:1933: checking for _doprnt" >&5
 if eval "test \"`echo '$''{'ac_cv_func__doprnt'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
  cat > conftest.$ac_ext <<EOF
-#line 1831 "configure"
+#line 1938 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char _doprnt(); below.  */
@@ -1850,7 +1957,7 @@ _doprnt();

 ; return 0; }
 EOF
-if { (eval echo configure:1854: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1961: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
  rm -rf conftest*
  eval "ac_cv_func__doprnt=yes"
 else
@@ -1877,12 +1984,12 @@ fi
 for ac_func in mkdir rmdir uname
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:1881: checking for $ac_func" >&5
+echo "configure:1988: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
  cat > conftest.$ac_ext <<EOF
-#line 1886 "configure"
+#line 1993 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char $ac_func(); below.  */
@@ -1905,7 +2012,7 @@ $ac_func();

 ; return 0; }
 EOF
-if { (eval echo configure:1909: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2016: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
  rm -rf conftest*
  eval "ac_cv_func_$ac_func=yes"
 else
@@ -1933,14 +2040,14 @@ done
 if test x$READLINE = xyes; then
 	
 echo $ac_n "checking for library containing tgetent""... $ac_c" 1>&6
-echo "configure:1937: checking for library containing tgetent" >&5
+echo "configure:2044: checking for library containing tgetent" >&5
 if eval "test \"`echo '$''{'ac_cv_search_tgetent'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
  ac_func_search_save_LIBS="$LIBS"
 ac_cv_search_tgetent="no"
 cat > conftest.$ac_ext <<EOF
-#line 1944 "configure"
+#line 2051 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -1951,7 +2058,7 @@ int main() {
 tgetent()
 ; return 0; }
 EOF
-if { (eval echo configure:1955: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2062: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
  rm -rf conftest*
  ac_cv_search_tgetent="none required"
 else
@@ -1962,7 +2069,7 @@ rm -f conftest*
 test "$ac_cv_search_tgetent" = "no" && for i in ncurses curses termcap termlib; do
 LIBS="-l$i  $ac_func_search_save_LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1966 "configure"
+#line 2073 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -1973,7 +2080,7 @@ int main() {
 tgetent()
 ; return 0; }
 EOF
-if { (eval echo configure:1977: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2084: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
  rm -rf conftest*
  ac_cv_search_tgetent="-l$i"
 break
@@ -2005,9 +2112,97 @@ Note: (n)curses also seems to work as a substitute for termcap.  This was
 fi
 fi

+echo $ac_n "checking for dlopen in -ldl""... $ac_c" 1>&6
+echo "configure:2117: checking for dlopen in -ldl" >&5
+ac_lib_var=`echo dl'_'dlopen | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_save_LIBS="$LIBS"
+LIBS="-ldl  $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 2125 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char dlopen();
+
+int main() {
+dlopen()
+; return 0; }
+EOF
+if { (eval echo configure:2136: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  HAVE_LIBDL=yes
+else
+  echo "$ac_t""no" 1>&6
+HAVE_LIBDL=no
+fi
+
+
+if test x$HAVE_LIBDL = xyes; then
+	CFLAGS="$CFLAGS -DHAVE_LIBDL"
+	LIBS="-ldl $LIBS"
+fi
+
+for ac_hdr in getopt.h
+do
+ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
+echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
+echo "configure:2167: checking for $ac_hdr" >&5
+if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 2172 "configure"
+#include "confdefs.h"
+#include <$ac_hdr>
+EOF
+ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+{ (eval echo configure:2177: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
+if test -z "$ac_err"; then
+  rm -rf conftest*
+  eval "ac_cv_header_$ac_safe=yes"
+else
+  echo "$ac_err" >&5
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_header_$ac_safe=no"
+fi
+rm -f conftest*
+fi
+if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+    ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
+  cat >> confdefs.h <<EOF
+#define $ac_tr_hdr 1
+EOF
+ CFLAGS="$CFLAGS -DHAVE_GETOPTLONG"
+else
+  echo "$ac_t""no" 1>&6
+fi
+done
+
+
 if test x$READLINE = xyes; then
 	echo $ac_n "checking for readline in -lreadline""... $ac_c" 1>&6
-echo "configure:2011: checking for readline in -lreadline" >&5
+echo "configure:2206: checking for readline in -lreadline" >&5
 ac_lib_var=`echo readline'_'readline | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
@@ -2015,7 +2210,7 @@ else
  ac_save_LIBS="$LIBS"
 LIBS="-lreadline  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2019 "configure"
+#line 2214 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -2026,7 +2221,7 @@ int main() {
 readline()
 ; return 0; }
 EOF
-if { (eval echo configure:2030: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2225: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
  rm -rf conftest*
  eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -2063,12 +2258,12 @@ package as well (which may be called readline-devel or something similar).
 fi

 	echo $ac_n "checking for rl_completion_matches""... $ac_c" 1>&6
-echo "configure:2067: checking for rl_completion_matches" >&5
+echo "configure:2262: checking for rl_completion_matches" >&5
 if eval "test \"`echo '$''{'ac_cv_func_rl_completion_matches'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
  cat > conftest.$ac_ext <<EOF
-#line 2072 "configure"
+#line 2267 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char rl_completion_matches(); below.  */
@@ -2091,7 +2286,7 @@ rl_completion_matches();

 ; return 0; }
 EOF
-if { (eval echo configure:2095: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2290: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
  rm -rf conftest*
  eval "ac_cv_func_rl_completion_matches=yes"
 else
@@ -2105,12 +2300,12 @@ fi

 if eval "test \"`echo '$ac_cv_func_'rl_completion_matches`\" = yes"; then
  echo "$ac_t""yes" 1>&6
-  HAVE_RL_COMPLETION_MATCHES=yes
+  CFLAGS="$CFLAGS -DHAVE_RL_COMPLETION_MATCHES"
 else
  echo "$ac_t""no" 1>&6
-HAVE_RL_COMPLETION_MATCHES=no
 fi

+		
 fi

 if test "-f VERSION"; then
@@ -2298,16 +2493,30 @@ s%@LN_S@%$LN_S%g
 s%@SET_MAKE@%$SET_MAKE%g
 s%@RANLIB@%$RANLIB%g
 s%@CPP@%$CPP%g
+s%@host@%$host%g
+s%@host_alias@%$host_alias%g
+s%@host_cpu@%$host_cpu%g
+s%@host_vendor@%$host_vendor%g
+s%@host_os@%$host_os%g
+s%@target@%$target%g
+s%@target_alias@%$target_alias%g
+s%@target_cpu@%$target_cpu%g
+s%@target_vendor@%$target_vendor%g
+s%@target_os@%$target_os%g
+s%@build@%$build%g
+s%@build_alias@%$build_alias%g
+s%@build_cpu@%$build_cpu%g
+s%@build_vendor@%$build_vendor%g
+s%@build_os@%$build_os%g
 s%@JOBS@%$JOBS%g
 s%@STATIC_LINK@%$STATIC_LINK%g
-s%@READLINE@%$READLINE%g
 s%@LVM1@%$LVM1%g
-s%@HAVE_RL_COMPLETION_MATCHES@%$HAVE_RL_COMPLETION_MATCHES%g
 s%@OWNER@%$OWNER%g
 s%@GROUP@%$GROUP%g
 s%@LVM_VERSION@%$LVM_VERSION%g
 s%@DEBUG@%$DEBUG%g
 s%@DEVMAPPER@%$DEVMAPPER%g
+s%@HAVE_LIBDL@%$HAVE_LIBDL%g

 CEOF
 EOF
--- a/configure.in
+++ b/configure.in
@@ -46,6 +46,14 @@ AC_TYPE_SIZE_T
 AC_STRUCT_ST_RDEV
 AC_HEADER_TIME

+dnl Get system type
+AC_CANONICAL_SYSTEM
+
+case "$host_os" in
+	linux*)
+		CFLAGS= ;;
+esac
+
 dnl -- prefix is /usr by default, the exec_prefix default is setup later
 AC_PREFIX_DEFAULT(/usr)

@@ -75,6 +83,10 @@ if [[ "x$LVM1" != xnone -a "x$LVM1" != xinternal -a "x$LVM1" != xshared ]];
 exit
 fi;

+if test x$LVM1 = xinternal; then
+	CFLAGS="$CFLAGS -DLVM1_INTERNAL"
+fi
+
 AC_ARG_ENABLE(jobs, [  --enable-jobs=NUM       Number of jobs to run simultaneously], JOBS=-j$enableval, JOBS=-j2)

 dnl Enables staticly linked tools
@@ -85,6 +97,10 @@ dnl Enable readline
 AC_ARG_ENABLE(readline, [  --enable-readline       Enable readline support],  \
 READLINE=$enableval, READLINE=no)

+if test x$READLINE = xyes; then
+	CFLAGS="$CFLAGS -DREADLINE_SUPPORT"
+fi
+
 dnl Enable Debugging
 AC_ARG_ENABLE(debug,    [  --enable-debug          Enable debugging],  \
 DEBUG=yes, DEBUG=no)
@@ -93,6 +109,10 @@ dnl Disable devmapper
 AC_ARG_ENABLE(devmapper, [  --disable-devmapper     Disable device-mapper interaction],  \
 DEVMAPPER=no, DEVMAPPER=yes)

+if test x$DEVMAPPER = xyes; then
+	CFLAGS="$CFLAGS -DDEVMAPPER_SUPPORT"
+fi
+
 dnl Mess with default exec_prefix
 if [[ "x$exec_prefix" = xNONE -a "x$prefix" = xNONE ]];
 then  exec_prefix="";
@@ -121,6 +141,17 @@ Note: (n)curses also seems to work as a substitute for termcap.  This was
 	)
 fi

+dnl Check for dlopen
+AC_CHECK_LIB(dl, dlopen, HAVE_LIBDL=yes, HAVE_LIBDL=no)
+
+if test x$HAVE_LIBDL = xyes; then
+	CFLAGS="$CFLAGS -DHAVE_LIBDL"
+	LIBS="-ldl $LIBS"
+fi
+
+dnl Check for getopt
+AC_CHECK_HEADERS(getopt.h, CFLAGS="$CFLAGS -DHAVE_GETOPTLONG")
+
 dnl Check for readline (Shamelessly copied from parted 1.4.17)
 if test x$READLINE = xyes; then
 	AC_CHECK_LIB(readline, readline, ,
@@ -134,8 +165,8 @@ package as well (which may be called readline-devel or something similar).
 )
 		exit
 	)
-	AC_CHECK_FUNC(rl_completion_matches, HAVE_RL_COMPLETION_MATCHES=yes,
-		HAVE_RL_COMPLETION_MATCHES=no)
+	AC_CHECK_FUNC(rl_completion_matches, CFLAGS="$CFLAGS -DHAVE_RL_COMPLETION_MATCHES")
+		
 fi

 if test "-f VERSION"; then
@@ -146,15 +177,15 @@ fi

 AC_SUBST(JOBS)
 AC_SUBST(STATIC_LINK)
-AC_SUBST(READLINE)
 AC_SUBST(LVM1)
-AC_SUBST(HAVE_RL_COMPLETION_MATCHES)
 AC_SUBST(OWNER)
 AC_SUBST(GROUP)
+AC_SUBST(CFLAGS)
 AC_SUBST(LIBS)
 AC_SUBST(LVM_VERSION)
 AC_SUBST(DEBUG)
 AC_SUBST(DEVMAPPER)
+AC_SUBST(HAVE_LIBDL)
 dnl First and last lines should not contain files to generate in order to 
 dnl keep utility scripts running properly
 AC_OUTPUT( 								\
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,13 @@
+lvm2 (1.95.15-1) unstable; urgency=low
+  
+  * New upstream release.
+  * Remove undocumented manpage symlinks.
+  * Update description to be more informative.  (Closes: #173499)
+  * Add kernel-patch-device-mapper suggestion.
+  * Update standards version.
+
+ -- Andres Salomon <dilinger@mp3revolution.net>  Sun, 16 Feb 2002 04:21:26 -0400
+
 lvm2 (1.95.11-1) unstable; urgency=low

  * New upstream release.  (Closes: #171436)
--- a/debian/control
+++ b/debian/control
@@ -3,7 +3,7 @@ Section: admin
 Priority: optional
 Maintainer: Andres Salomon <dilinger@mp3revolution.net>
 Build-Depends: debhelper (>> 3.0.0), libdevmapper-dev (>= 0.96.04), libreadline4-dev
-Standards-Version: 3.5.2
+Standards-Version: 3.5.8.0

 Package: lvm2
 Architecture: any
@@ -11,10 +11,14 @@ Depends: ${shlibs:Depends}
 Conflicts: lvm10, lvm-common
 Replaces: lvm10, lvm-common
 Provides: lvm-binaries
-Suggests: dmsetup
+Suggests: dmsetup, kernel-patch-device-mapper
 Description: The Linux Logical Volume Manager
 This is LVM2, the rewrite of The Linux Logical Volume Manager.  LVM
 supports enterprise level volume management of disk and disk subsystems
 by grouping arbitrary disks into volume groups. The total capacity of
 volume groups can be allocated to logical volumes, which are accessed as
 regular block devices.
+ .
+ LVM2 is currently stable, but has some unimplemented features (most notably,
+ pvmove and e2fsadm).  It is not yet recommended for production use.  It is
+ backwards-compatible with LVM1 (lvm10), and requires Linux kernel 2.4.
--- a/debian/rules
+++ b/debian/rules
@@ -102,7 +102,6 @@ binary-arch: build install
 	dh_installcron
 	dh_installman
 	dh_installinfo 
-	dh_undocumented
 	dh_installchangelogs
 	dh_strip
 	dh_link
--- a/debian/undocumented
+++ b/debian/undocumented
@@ -1,13 +0,0 @@
-e2fsadm.8
-lvmdiskscan.8
-lvmsadc.8
-lvmsar.8
-lvresize.8
-pvdata.8
-pvmove.8
-pvresize.8
-version.8
-vgexport.8
-vgimport.8
-vgmknodes.8
-vgsplit.8
--- a/doc/example.conf
+++ b/doc/example.conf
@@ -104,6 +104,10 @@ log {
    #   indent = 0
    #   command_names = 1
    #   prefix = " -- "
+
+    # Set this if you want log messages during activation.
+    # Don't use this in low memory situations (can deadlock).
+    # activation = 0
 }

 # Configuration of metadata backups and archiving.  In LVM2 when we
@@ -193,6 +197,26 @@ global {
    #   library_dir = "/lib"
 }

+activation {
+    # Device used in place of missing stripes if activating incomplete volume.
+    # For now, you need to set this up yourself first (e.g. with 'dmsetup')
+    # For example, you could make it return I/O errors using the 'error' 
+    # target or make it return zeros.
+    missing_stripe_filler = "/dev/ioerror"
+
+    # Size (in KB) of each copy operation when mirroring
+    mirror_region_size = 512
+
+    # How much stack (in KB) to reserve for use while devices suspended
+    reserved_stack = 256
+
+    # How much memory (in KB) to reserve for use while devices suspended
+    reserved_memory = 8192
+
+    # Nice value used while devices suspended
+    process_priority = -18
+}
+

 ####################
 # Advanced section #
@@ -220,7 +244,8 @@ global {
    # preferably on different (non-LV) filesystems, and with no other 
    # on-disk metadata (pvmetadatacopies = 0). Or this can be in
    # addition to on-disk metadata areas.
-    # The feature was originally added to simplify testing.
+    # The feature was originally added to simplify testing and is not
+    # supported under low memory situations - the machine could lock up.
    #
    # Never edit any files in these directories by hand unless you
    # you are absolutely sure you know what you are doing! Use
--- a/include/.symlinks
+++ b/include/.symlinks
@@ -1,5 +1,5 @@
 ../lib/activate/activate.h
-../lib/cache/cache.h
+../lib/cache/lvmcache.h
 ../lib/commands/errors.h
 ../lib/commands/toolcontext.h
 ../lib/config/config.h
@@ -24,6 +24,7 @@
 ../lib/log/log.h
 ../lib/metadata/metadata.h
 ../lib/mm/dbg_malloc.h
+../lib/mm/memlock.h
 ../lib/mm/pool.h
 ../lib/mm/xlate.h
 ../lib/misc/crc.h
--- a/lib/Makefile.in
+++ b/lib/Makefile.in
@@ -14,7 +14,7 @@ endif

 SOURCES=\
 	activate/activate.c \
-	cache/cache.c \
+	cache/lvmcache.c \
 	commands/toolcontext.c \
 	config/config.c \
 	datastruct/bitset.c \
@@ -36,7 +36,6 @@ SOURCES=\
 	format_text/import_vsn1.c \
 	format_text/text_label.c \
 	label/label.c \
-	locking/external_locking.c \
 	locking/file_locking.c \
 	locking/locking.c \
 	locking/no_locking.c \
@@ -44,12 +43,13 @@ SOURCES=\
 	metadata/lv_manip.c \
 	metadata/merge.c \
 	metadata/metadata.c \
+	metadata/mirror.c \
 	metadata/pv_map.c \
 	metadata/snapshot_manip.c \
 	misc/crc.c \
 	misc/lvm-file.c \
 	misc/lvm-string.c \
-	misc/sharedlib.c \
+	mm/memlock.c \
 	mm/pool.c \
 	regex/matcher.c \
 	regex/parse_rx.c \
@@ -79,6 +79,12 @@ ifeq ("@DEVMAPPER@", "yes")
 	activate/fs.c
 endif

+ifeq ("@HAVE_LIBDL@", "yes")
+  SOURCES+=\
+	locking/external_locking.c \
+	misc/sharedlib.c
+endif
+
 TARGETS=liblvm.a

 include ../make.tmpl
--- a/lib/activate/activate.c
+++ b/lib/activate/activate.c
@@ -7,6 +7,7 @@
 #include "lib.h"
 #include "metadata.h"
 #include "activate.h"
+#include "memlock.h"
 #include "display.h"
 #include "fs.h"
 #include "lvm-string.h"
@@ -15,8 +16,8 @@
 #include "dev_manager.h"

 #include <limits.h>
-#include <linux/kdev_t.h>
 #include <fcntl.h>
+#include <unistd.h>

 #define _skip(fmt, args...) log_very_verbose("Skipping: " fmt , ## args)

@@ -47,6 +48,11 @@ int lv_snapshot_percent(struct logical_volume *lv, float *percent)
 {
 	return 0;
 }
+int lv_mirror_percent(struct logical_volume *lv, int wait, float *percent,
+		      uint32_t *event_nr)
+{
+	return 0;
+}
 int lvs_in_vg_activated(struct volume_group *vg)
 {
 	return 0;
@@ -71,6 +77,10 @@ int lv_activate(struct cmd_context *cmd, const char *lvid_s)
 {
 	return 1;
 }
+void activation_exit(void)
+{
+	return;
+}

 #else				/* DEVMAPPER_SUPPORT */

@@ -145,7 +155,7 @@ int lv_info(const struct logical_volume *lv, struct lvinfo *info)
 	if (!activation())
 		return 0;

-	if (!(dm = dev_manager_create(lv->vg->name))) {
+	if (!(dm = dev_manager_create(lv->vg->name, lv->vg->cmd->cf))) {
 		stack;
 		return 0;
 	}
@@ -175,7 +185,7 @@ int lv_snapshot_percent(struct logical_volume *lv, float *percent)
 	if (!activation())
 		return 0;

-	if (!(dm = dev_manager_create(lv->vg->name))) {
+	if (!(dm = dev_manager_create(lv->vg->name, lv->vg->cmd->cf))) {
 		stack;
 		return 0;
 	}
@@ -188,6 +198,29 @@ int lv_snapshot_percent(struct logical_volume *lv, float *percent)
 	return r;
 }

+/* FIXME Merge with snapshot_percent */
+int lv_mirror_percent(struct logical_volume *lv, int wait, float *percent,
+		      uint32_t *event_nr)
+{
+	int r;
+	struct dev_manager *dm;
+
+	if (!activation())
+		return 0;
+
+	if (!(dm = dev_manager_create(lv->vg->name, lv->vg->cmd->cf))) {
+		stack;
+		return 0;
+	}
+
+	if (!(r = dev_manager_mirror_percent(dm, lv, wait, percent, event_nr)))
+		stack;
+
+	dev_manager_destroy(dm);
+
+	return r;
+}
+
 static int _lv_active(struct logical_volume *lv)
 {
 	struct lvinfo info;
@@ -218,7 +251,7 @@ static int _lv_activate(struct logical_volume *lv)
 	int r;
 	struct dev_manager *dm;

-	if (!(dm = dev_manager_create(lv->vg->name))) {
+	if (!(dm = dev_manager_create(lv->vg->name, lv->vg->cmd->cf))) {
 		stack;
 		return 0;
 	}
@@ -235,7 +268,7 @@ static int _lv_deactivate(struct logical_volume *lv)
 	int r;
 	struct dev_manager *dm;

-	if (!(dm = dev_manager_create(lv->vg->name))) {
+	if (!(dm = dev_manager_create(lv->vg->name, lv->vg->cmd->cf))) {
 		stack;
 		return 0;
 	}
@@ -252,7 +285,7 @@ static int _lv_suspend(struct logical_volume *lv)
 	int r;
 	struct dev_manager *dm;

-	if (!(dm = dev_manager_create(lv->vg->name))) {
+	if (!(dm = dev_manager_create(lv->vg->name, lv->vg->cmd->cf))) {
 		stack;
 		return 0;
 	}
@@ -314,12 +347,9 @@ int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid_s)
 	if (!(lv = lv_from_lvid(cmd, lvid_s)))
 		return 0;

-	if (!activation())
-		return 1;
-
 	if (test_mode()) {
 		_skip("Suspending '%s'.", lv->name);
-		return 0;
+		return 1;
 	}

 	if (!lv_info(lv, &info)) {
@@ -327,8 +357,15 @@ int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid_s)
 		return 0;
 	}

-	if (info.exists && !info.suspended)
-		return _lv_suspend(lv);
+	if (!info.exists || info.suspended)
+		return 1;
+
+	memlock_inc();
+	if (!_lv_suspend(lv)) {
+		memlock_dec();
+		fs_unlock();
+		return 0;
+	}

 	return 1;
 }
@@ -346,7 +383,7 @@ int lv_resume_if_active(struct cmd_context *cmd, const char *lvid_s)

 	if (test_mode()) {
 		_skip("Resuming '%s'.", lv->name);
-		return 0;
+		return 1;
 	}

 	if (!lv_info(lv, &info)) {
@@ -354,8 +391,14 @@ int lv_resume_if_active(struct cmd_context *cmd, const char *lvid_s)
 		return 0;
 	}

-	if (info.exists && info.suspended)
-		return _lv_activate(lv);
+	if (!info.exists || !info.suspended)
+		return 1;
+
+	if (!_lv_activate(lv))
+		return 0;
+
+	memlock_dec();
+	fs_unlock();

 	return 1;
 }
@@ -364,6 +407,7 @@ int lv_deactivate(struct cmd_context *cmd, const char *lvid_s)
 {
 	struct logical_volume *lv;
 	struct lvinfo info;
+	int r;

 	if (!activation())
 		return 1;
@@ -373,7 +417,7 @@ int lv_deactivate(struct cmd_context *cmd, const char *lvid_s)

 	if (test_mode()) {
 		_skip("Deactivating '%s'.", lv->name);
-		return 0;
+		return 1;
 	}

 	if (!lv_info(lv, &info)) {
@@ -381,16 +425,22 @@ int lv_deactivate(struct cmd_context *cmd, const char *lvid_s)
 		return 0;
 	}

-	if (info.exists)
-		return _lv_deactivate(lv);
+	if (!info.exists)
+		return 1;

-	return 1;
+	memlock_inc();
+	r = _lv_deactivate(lv);
+	memlock_dec();
+	fs_unlock();
+
+	return r;
 }

 int lv_activate(struct cmd_context *cmd, const char *lvid_s)
 {
 	struct logical_volume *lv;
 	struct lvinfo info;
+	int r;

 	if (!activation())
 		return 1;
@@ -400,7 +450,7 @@ int lv_activate(struct cmd_context *cmd, const char *lvid_s)

 	if (test_mode()) {
 		_skip("Activating '%s'.", lv->name);
-		return 0;
+		return 1;
 	}

 	if (!lv_info(lv, &info)) {
@@ -408,10 +458,19 @@ int lv_activate(struct cmd_context *cmd, const char *lvid_s)
 		return 0;
 	}

-	if (!info.exists || info.suspended)
-		return _lv_activate(lv);
+	if (info.exists && !info.suspended)
+		return 1;

-	return 1;
+	memlock_inc();
+	r = _lv_activate(lv);
+	memlock_dec();
+	fs_unlock();
+
+	return r;
 }

+void activation_exit(void)
+{
+	dev_manager_exit();
+}
 #endif
--- a/lib/activate/activate.h
+++ b/lib/activate/activate.h
@@ -10,7 +10,7 @@
 #include "metadata.h"

 #ifdef DEVMAPPER_SUPPORT
-#include <libdevmapper.h>
+#  include <libdevmapper.h>
 #endif

 struct lvinfo {
@@ -28,6 +28,13 @@ int activation(void);
 int driver_version(char *version, size_t size);
 int library_version(char *version, size_t size);

+void activation_exit(void);
+
+int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid_s);
+int lv_resume_if_active(struct cmd_context *cmd, const char *lvid_s);
+int lv_activate(struct cmd_context *cmd, const char *lvid_s);
+int lv_deactivate(struct cmd_context *cmd, const char *lvid_s);
+
 /*
 * Returns 1 if info structure has been populated, else 0.
 */
@@ -36,20 +43,8 @@ int lv_info(const struct logical_volume *lv, struct lvinfo *info);
 * Returns 1 if percent has been set, else 0.
 */
 int lv_snapshot_percent(struct logical_volume *lv, float *percent);
-
-/*
- * These should eventually use config file
- * to determine whether or not to activate
- */
-int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid_s);
-int lv_resume_if_active(struct cmd_context *cmd, const char *lvid_s);
-int lv_activate(struct cmd_context *cmd, const char *lvid_s);
-int lv_deactivate(struct cmd_context *cmd, const char *lvid_s);
-
-/*
- * FIXME:
- * I don't like the *lvs_in_vg* function names.
- */
+int lv_mirror_percent(struct logical_volume *lv, int wait, float *percent,
+		      uint32_t *event_nr);

 /*
 * Return number of LVs in the VG that are active.
--- a/lib/activate/dev_manager.c
+++ b/lib/activate/dev_manager.c
--- a/lib/activate/dev_manager.h
+++ b/lib/activate/dev_manager.h
@@ -8,16 +8,18 @@
 #define _LVM_DEV_MANAGER_H

 #include "metadata.h"
-
-#include <libdevmapper.h>
+#include "config.h"

 struct dev_manager;
+struct dm_info;

 /*
 * Constructor and destructor.
 */
-struct dev_manager *dev_manager_create(const char *vg_name);
+struct dev_manager *dev_manager_create(const char *vg_name,
+				       struct config_tree *cf);
 void dev_manager_destroy(struct dev_manager *dm);
+void dev_manager_exit(void);

 /*
 * The device handler is responsible for creating all the layered
@@ -29,6 +31,9 @@ int dev_manager_info(struct dev_manager *dm, const struct logical_volume *lv,
 		     struct dm_info *info);
 int dev_manager_snapshot_percent(struct dev_manager *dm,
 				 struct logical_volume *lv, float *percent);
+int dev_manager_mirror_percent(struct dev_manager *dm,
+			       struct logical_volume *lv, int wait,
+			       float *percent, uint32_t *event_nr);
 int dev_manager_suspend(struct dev_manager *dm, struct logical_volume *lv);
 int dev_manager_activate(struct dev_manager *dm, struct logical_volume *lv);
 int dev_manager_deactivate(struct dev_manager *dm, struct logical_volume *lv);
--- a/lib/activate/fs.c
+++ b/lib/activate/fs.c
@@ -9,6 +9,7 @@
 #include "toolcontext.h"
 #include "lvm-string.h"
 #include "lvm-file.h"
+#include "memlock.h"

 #include <sys/stat.h>
 #include <fcntl.h>
@@ -17,12 +18,12 @@
 #include <dirent.h>
 #include <libdevmapper.h>

-static int _mk_dir(struct volume_group *vg)
+static int _mk_dir(const char *dev_dir, const char *vg_name)
 {
 	char vg_path[PATH_MAX];

 	if (lvm_snprintf(vg_path, sizeof(vg_path), "%s%s",
-			 vg->cmd->dev_dir, vg->name) == -1) {
+			 dev_dir, vg_name) == -1) {
 		log_error("Couldn't construct name of volume "
 			  "group directory.");
 		return 0;
@@ -40,12 +41,12 @@ static int _mk_dir(struct volume_group *vg)
 	return 1;
 }

-static int _rm_dir(struct volume_group *vg)
+static int _rm_dir(const char *dev_dir, const char *vg_name)
 {
 	char vg_path[PATH_MAX];

 	if (lvm_snprintf(vg_path, sizeof(vg_path), "%s%s",
-			 vg->cmd->dev_dir, vg->name) == -1) {
+			 dev_dir, vg_name) == -1) {
 		log_error("Couldn't construct name of volume "
 			  "group directory.");
 		return 0;
@@ -93,37 +94,38 @@ static void _rm_blks(const char *dir)
 	}
 }

-static int _mk_link(struct logical_volume *lv, const char *dev)
+static int _mk_link(const char *dev_dir, const char *vg_name,
+		    const char *lv_name, const char *dev)
 {
 	char lv_path[PATH_MAX], link_path[PATH_MAX], lvm1_group_path[PATH_MAX];
 	char vg_path[PATH_MAX];
 	struct stat buf;

 	if (lvm_snprintf(vg_path, sizeof(vg_path), "%s%s",
-			 lv->vg->cmd->dev_dir, lv->vg->name) == -1) {
+			 dev_dir, vg_name) == -1) {
 		log_error("Couldn't create path for volume group dir %s",
-			  lv->vg->name);
+			  vg_name);
 		return 0;
 	}

 	if (lvm_snprintf(lv_path, sizeof(lv_path), "%s/%s", vg_path,
-			 lv->name) == -1) {
+			 lv_name) == -1) {
 		log_error("Couldn't create source pathname for "
-			  "logical volume link %s", lv->name);
+			  "logical volume link %s", lv_name);
 		return 0;
 	}

 	if (lvm_snprintf(link_path, sizeof(link_path), "%s/%s",
 			 dm_dir(), dev) == -1) {
 		log_error("Couldn't create destination pathname for "
-			  "logical volume link for %s", lv->name);
+			  "logical volume link for %s", lv_name);
 		return 0;
 	}

 	if (lvm_snprintf(lvm1_group_path, sizeof(lvm1_group_path), "%s/group",
 			 vg_path) == -1) {
 		log_error("Couldn't create pathname for LVM1 group file for %s",
-			  lv->vg->name);
+			  vg_name);
 		return 0;
 	}

@@ -167,13 +169,14 @@ static int _mk_link(struct logical_volume *lv, const char *dev)
 	return 1;
 }

-static int _rm_link(struct logical_volume *lv, const char *lv_name)
+static int _rm_link(const char *dev_dir, const char *vg_name,
+		    const char *lv_name)
 {
 	struct stat buf;
 	char lv_path[PATH_MAX];

 	if (lvm_snprintf(lv_path, sizeof(lv_path), "%s%s/%s",
-			 lv->vg->cmd->dev_dir, lv->vg->name, lv_name) == -1) {
+			 dev_dir, vg_name, lv_name) == -1) {
 		log_error("Couldn't determine link pathname.");
 		return 0;
 	}
@@ -192,35 +195,143 @@ static int _rm_link(struct logical_volume *lv, const char *lv_name)
 	return 1;
 }

-int fs_add_lv(struct logical_volume *lv, const char *dev)
+typedef enum {
+	FS_ADD,
+	FS_DEL,
+	FS_RENAME
+} fs_op_t;
+
+static int _do_fs_op(fs_op_t type, const char *dev_dir, const char *vg_name,
+		     const char *lv_name, const char *dev,
+		     const char *old_lv_name)
 {
-	if (!_mk_dir(lv->vg) || !_mk_link(lv, dev)) {
-		stack;
-		return 0;
+	switch (type) {
+	case FS_ADD:
+		if (!_mk_dir(dev_dir, vg_name) ||
+		    !_mk_link(dev_dir, vg_name, lv_name, dev)) {
+			stack;
+			return 0;
+		}
+		break;
+	case FS_DEL:
+		if (!_rm_link(dev_dir, vg_name, lv_name) ||
+		    !_rm_dir(dev_dir, vg_name)) {
+			stack;
+			return 0;
+		}
+		break;
+		/* FIXME Use rename() */
+	case FS_RENAME:
+		if (old_lv_name && !_rm_link(dev_dir, vg_name, old_lv_name))
+			stack;
+
+		if (!_mk_link(dev_dir, vg_name, lv_name, dev))
+			stack;
 	}

 	return 1;
 }

+static LIST_INIT(_fs_ops);
+
+struct fs_op_parms {
+	struct list list;
+	fs_op_t type;
+	char *dev_dir;
+	char *vg_name;
+	char *lv_name;
+	char *dev;
+	char *old_lv_name;
+	char names[0];
+};
+
+static void _store_str(char **pos, char **ptr, const char *str)
+{
+	strcpy(*pos, str);
+	*ptr = *pos;
+	*pos += strlen(*ptr) + 1;
+}
+
+static int _stack_fs_op(fs_op_t type, const char *dev_dir, const char *vg_name,
+			const char *lv_name, const char *dev,
+			const char *old_lv_name)
+{
+	struct fs_op_parms *fsp;
+	size_t len = strlen(dev_dir) + strlen(vg_name) + strlen(lv_name) +
+	    strlen(dev) + strlen(old_lv_name) + 5;
+	char *pos;
+
+	if (!(fsp = dbg_malloc(sizeof(*fsp) + len))) {
+		log_error("No space to stack fs operation");
+		return 0;
+	}
+
+	pos = fsp->names;
+	fsp->type = type;
+
+	_store_str(&pos, &fsp->dev_dir, dev_dir);
+	_store_str(&pos, &fsp->vg_name, vg_name);
+	_store_str(&pos, &fsp->lv_name, lv_name);
+	_store_str(&pos, &fsp->dev, dev);
+	_store_str(&pos, &fsp->old_lv_name, old_lv_name);
+
+	list_add(&_fs_ops, &fsp->list);
+
+	return 1;
+}
+
+static void _pop_fs_ops(void)
+{
+	struct list *fsph, *fspht;
+	struct fs_op_parms *fsp;
+
+	list_iterate_safe(fsph, fspht, &_fs_ops) {
+		fsp = list_item(fsph, struct fs_op_parms);
+		_do_fs_op(fsp->type, fsp->dev_dir, fsp->vg_name, fsp->lv_name,
+			  fsp->dev, fsp->old_lv_name);
+		list_del(&fsp->list);
+		dbg_free(fsp);
+	}
+}
+
+static int _fs_op(fs_op_t type, const char *dev_dir, const char *vg_name,
+		  const char *lv_name, const char *dev, const char *old_lv_name)
+{
+	if (memlock()) {
+		if (!_stack_fs_op(type, dev_dir, vg_name, lv_name, dev,
+				  old_lv_name)) {
+			stack;
+			return 0;
+		}
+		return 1;
+	}
+
+	return _do_fs_op(type, dev_dir, vg_name, lv_name, dev, old_lv_name);
+}
+
+int fs_add_lv(struct logical_volume *lv, const char *dev)
+{
+	return _fs_op(FS_ADD, lv->vg->cmd->dev_dir, lv->vg->name, lv->name,
+		      dev, "");
+}
+
 int fs_del_lv(struct logical_volume *lv)
 {
-	if (!_rm_link(lv, lv->name) || !_rm_dir(lv->vg)) {
-		stack;
-		return 0;
-	}
-
-	return 1;
+	return _fs_op(FS_DEL, lv->vg->cmd->dev_dir, lv->vg->name, lv->name,
+		      "", "");
 }

-/* FIXME Use rename() */
 int fs_rename_lv(struct logical_volume *lv,
 		 const char *dev, const char *old_name)
 {
-	if (old_name && !_rm_link(lv, old_name))
-		stack;
-
-	if (!_mk_link(lv, dev))
-		stack;
-
-	return 1;
+	return _fs_op(FS_RENAME, lv->vg->cmd->dev_dir, lv->vg->name, lv->name,
+		      dev, old_name);
+}
+
+void fs_unlock(void)
+{
+	if (!memlock()) {
+		dm_lib_release();
+		_pop_fs_ops();
+	}
 }
--- a/lib/activate/fs.h
+++ b/lib/activate/fs.h
@@ -18,5 +18,6 @@ int fs_add_lv(struct logical_volume *lv, const char *dev);
 int fs_del_lv(struct logical_volume *lv);
 int fs_rename_lv(struct logical_volume *lv,
 		 const char *dev, const char *old_name);
+void fs_unlock(void);

 #endif
--- a/lib/cache/lvmcache.c
+++ b/lib/cache/lvmcache.c
@@ -6,22 +6,23 @@
 */

 #include "lib.h"
-#include "cache.h"
+#include "lvmcache.h"
 #include "hash.h"
 #include "toolcontext.h"
 #include "dev-cache.h"
 #include "metadata.h"
 #include "filter.h"
-
-#include <linux/kdev_t.h>
+#include "memlock.h"

 static struct hash_table *_pvid_hash = NULL;
 static struct hash_table *_vgid_hash = NULL;
 static struct hash_table *_vgname_hash = NULL;
+static struct hash_table *_lock_hash = NULL;
 static struct list _vginfos;
-int _has_scanned = 0;
+static int _has_scanned = 0;
+static int _vgs_locked = 0;

-int cache_init(void)
+int lvmcache_init(void)
 {
 	list_init(&_vginfos);

@@ -34,12 +35,52 @@ int cache_init(void)
 	if (!(_pvid_hash = hash_create(128)))
 		return 0;

+	if (!(_lock_hash = hash_create(128)))
+		return 0;
+
 	return 1;
 }

-struct cache_vginfo *vginfo_from_vgname(const char *vgname)
+void lvmcache_lock_vgname(const char *vgname, int read_only)
 {
-	struct cache_vginfo *vginfo;
+	if (!_lock_hash && !lvmcache_init()) {
+		log_error("Internal cache initialisation failed");
+		return;
+	}
+
+	if (!hash_insert(_lock_hash, vgname, (void *) 1))
+		log_error("Cache locking failure for %s", vgname);
+
+	_vgs_locked++;
+}
+
+static int _vgname_is_locked(const char *vgname) __attribute__ ((unused));
+static int _vgname_is_locked(const char *vgname)
+{
+	if (!_lock_hash)
+		return 0;
+
+	return hash_lookup(_lock_hash, vgname) ? 1 : 0;
+}
+
+void lvmcache_unlock_vgname(const char *vgname)
+{
+	/* FIXME: Clear all CACHE_LOCKED flags in this vg */
+	hash_remove(_lock_hash, vgname);
+
+	/* FIXME Do this per-VG */
+	if (!--_vgs_locked)
+		dev_close_all();
+}
+
+int vgs_locked(void)
+{
+	return _vgs_locked;
+}
+
+struct lvmcache_vginfo *vginfo_from_vgname(const char *vgname)
+{
+	struct lvmcache_vginfo *vginfo;

 	if (!_vgname_hash)
 		return NULL;
@@ -52,7 +93,7 @@ struct cache_vginfo *vginfo_from_vgname(const char *vgname)

 const struct format_type *fmt_from_vgname(const char *vgname)
 {
-	struct cache_vginfo *vginfo;
+	struct lvmcache_vginfo *vginfo;

 	if (!(vginfo = vginfo_from_vgname(vgname)))
 		return NULL;
@@ -60,33 +101,42 @@ const struct format_type *fmt_from_vgname(const char *vgname)
 	return vginfo->fmt;
 }

-struct cache_vginfo *vginfo_from_vgid(const char *vgid)
+struct lvmcache_vginfo *vginfo_from_vgid(const char *vgid)
 {
-	struct cache_vginfo *vginfo;
+	struct lvmcache_vginfo *vginfo;
+	char id[ID_LEN + 1];

 	if (!_vgid_hash || !vgid)
 		return NULL;

-	if (!(vginfo = hash_lookup_fixed(_vgid_hash, vgid, ID_LEN)))
+	/* vgid not necessarily NULL-terminated */
+	strncpy(&id[0], vgid, ID_LEN);
+	id[ID_LEN] = '\0';
+
+	if (!(vginfo = hash_lookup(_vgid_hash, id)))
 		return NULL;

 	return vginfo;
 }

-struct cache_info *info_from_pvid(const char *pvid)
+struct lvmcache_info *info_from_pvid(const char *pvid)
 {
-	struct cache_info *info;
+	struct lvmcache_info *info;
+	char id[ID_LEN + 1];

 	if (!_pvid_hash || !pvid)
 		return NULL;

-	if (!(info = hash_lookup_fixed(_pvid_hash, pvid, ID_LEN)))
+	strncpy(&id[0], pvid, ID_LEN);
+	id[ID_LEN] = '\0';
+
+	if (!(info = hash_lookup(_pvid_hash, id)))
 		return NULL;

 	return info;
 }

-static void _rescan_entry(struct cache_info *info)
+static void _rescan_entry(struct lvmcache_info *info)
 {
 	struct label *label;

@@ -101,7 +151,7 @@ static int _scan_invalid(void)
 	return 1;
 }

-int cache_label_scan(struct cmd_context *cmd, int full_scan)
+int lvmcache_label_scan(struct cmd_context *cmd, int full_scan)
 {
 	struct label *label;
 	struct dev_iter *iter;
@@ -118,7 +168,7 @@ int cache_label_scan(struct cmd_context *cmd, int full_scan)

 	_scanning_in_progress = 1;

-	if (!_vgname_hash && !cache_init()) {
+	if (!_vgname_hash && !lvmcache_init()) {
 		log_error("Internal cache initialisation failed");
 		goto out;
 	}
@@ -155,12 +205,12 @@ int cache_label_scan(struct cmd_context *cmd, int full_scan)
 	return r;
 }

-struct list *cache_get_vgnames(struct cmd_context *cmd, int full_scan)
+struct list *lvmcache_get_vgnames(struct cmd_context *cmd, int full_scan)
 {
 	struct list *vgih, *vgnames;
 	struct str_list *sl;

-	cache_label_scan(cmd, full_scan);
+	lvmcache_label_scan(cmd, full_scan);

 	if (!(vgnames = pool_alloc(cmd->mem, sizeof(struct list)))) {
 		log_error("vgnames list allocation failed");
@@ -176,7 +226,7 @@ struct list *cache_get_vgnames(struct cmd_context *cmd, int full_scan)
 		}
 		if (!(sl->str = pool_strdup(cmd->mem,
 					    list_item(vgih,
-						      struct cache_vginfo)->
+						      struct lvmcache_vginfo)->
 					    vgname))) {
 			log_error("vgname allocation failed");
 			return NULL;
@@ -190,34 +240,37 @@ struct list *cache_get_vgnames(struct cmd_context *cmd, int full_scan)
 struct device *device_from_pvid(struct cmd_context *cmd, struct id *pvid)
 {
 	struct label *label;
-	struct cache_info *info;
+	struct lvmcache_info *info;

 	/* Already cached ? */
 	if ((info = info_from_pvid((char *) pvid))) {
 		if (label_read(info->dev, &label)) {
-			info = (struct cache_info *) label->info;
+			info = (struct lvmcache_info *) label->info;
 			if (id_equal(pvid, (struct id *) &info->dev->pvid))
 				return info->dev;
 		}
 	}

-	cache_label_scan(cmd, 0);
+	lvmcache_label_scan(cmd, 0);

 	/* Try again */
 	if ((info = info_from_pvid((char *) pvid))) {
 		if (label_read(info->dev, &label)) {
-			info = (struct cache_info *) label->info;
+			info = (struct lvmcache_info *) label->info;
 			if (id_equal(pvid, (struct id *) &info->dev->pvid))
 				return info->dev;
 		}
 	}

-	cache_label_scan(cmd, 1);
+	if (memlock())
+		return NULL;
+
+	lvmcache_label_scan(cmd, 1);

 	/* Try again */
 	if ((info = info_from_pvid((char *) pvid))) {
 		if (label_read(info->dev, &label)) {
-			info = (struct cache_info *) label->info;
+			info = (struct lvmcache_info *) label->info;
 			if (id_equal(pvid, (struct id *) &info->dev->pvid))
 				return info->dev;
 		}
@@ -226,7 +279,7 @@ struct device *device_from_pvid(struct cmd_context *cmd, struct id *pvid)
 	return NULL;
 }

-static void _drop_vginfo(struct cache_info *info)
+static void _drop_vginfo(struct lvmcache_info *info)
 {
 	if (!list_empty(&info->list)) {
 		list_del(&info->list);
@@ -247,7 +300,7 @@ static void _drop_vginfo(struct cache_info *info)
 }

 /* Unused
-void cache_del(struct cache_info *info)
+void lvmcache_del(struct lvmcache_info *info)
 {
 	if (info->dev->pvid[0] && _pvid_hash)
 		hash_remove(_pvid_hash, info->dev->pvid);
@@ -261,7 +314,7 @@ void cache_del(struct cache_info *info)
 	return;
 } */

-static int _cache_update_pvid(struct cache_info *info, const char *pvid)
+static int _lvmcache_update_pvid(struct lvmcache_info *info, const char *pvid)
 {
 	if (!strcmp(info->dev->pvid, pvid))
 		return 1;
@@ -270,14 +323,14 @@ static int _cache_update_pvid(struct cache_info *info, const char *pvid)
 	}
 	strncpy(info->dev->pvid, pvid, sizeof(info->dev->pvid));
 	if (!hash_insert(_pvid_hash, pvid, info)) {
-		log_error("_cache_update: pvid insertion failed: %s", pvid);
+		log_error("_lvmcache_update: pvid insertion failed: %s", pvid);
 		return 0;
 	}

 	return 1;
 }

-static int _cache_update_vgid(struct cache_info *info, const char *vgid)
+static int _lvmcache_update_vgid(struct lvmcache_info *info, const char *vgid)
 {
 	if (!vgid || !info->vginfo || !strncmp(info->vginfo->vgid, vgid,
 					       sizeof(info->vginfo->vgid)))
@@ -290,18 +343,18 @@ static int _cache_update_vgid(struct cache_info *info, const char *vgid)

 	strncpy(info->vginfo->vgid, vgid, sizeof(info->vginfo->vgid));
 	info->vginfo->vgid[sizeof(info->vginfo->vgid) - 1] = '\0';
-	if (!hash_insert(_vgid_hash, vgid, info->vginfo)) {
-		log_error("_cache_update: vgid hash insertion failed: %s",
-			  vgid);
+	if (!hash_insert(_vgid_hash, info->vginfo->vgid, info->vginfo)) {
+		log_error("_lvmcache_update: vgid hash insertion failed: %s",
+			  info->vginfo->vgid);
 		return 0;
 	}

 	return 1;
 }

-int cache_update_vgname(struct cache_info *info, const char *vgname)
+int lvmcache_update_vgname(struct lvmcache_info *info, const char *vgname)
 {
-	struct cache_vginfo *vginfo;
+	struct lvmcache_vginfo *vginfo;

 	/* If vgname is NULL and we don't already have a vgname, 
 	 * assume ORPHAN - we want every entry to have a vginfo
@@ -319,7 +372,7 @@ int cache_update_vgname(struct cache_info *info, const char *vgname)
 	/* Get existing vginfo or create new one */
 	if (!(vginfo = vginfo_from_vgname(vgname))) {
 		if (!(vginfo = dbg_malloc(sizeof(*vginfo)))) {
-			log_error("cache_update_vgname: list alloc failed");
+			log_error("lvmcache_update_vgname: list alloc failed");
 			return 0;
 		}
 		memset(vginfo, 0, sizeof(*vginfo));
@@ -352,11 +405,11 @@ int cache_update_vgname(struct cache_info *info, const char *vgname)
 	return 1;
 }

-int cache_update_vg(struct volume_group *vg)
+int lvmcache_update_vg(struct volume_group *vg)
 {
 	struct list *pvh;
 	struct physical_volume *pv;
-	struct cache_info *info;
+	struct lvmcache_info *info;
 	char pvid_s[ID_LEN + 1];
 	int vgid_updated = 0;

@@ -367,9 +420,9 @@ int cache_update_vg(struct volume_group *vg)
 		strncpy(pvid_s, (char *) &pv->id, sizeof(pvid_s) - 1);
 		/* FIXME Could pv->dev->pvid ever be different? */
 		if ((info = info_from_pvid(pvid_s))) {
-			cache_update_vgname(info, vg->name);
+			lvmcache_update_vgname(info, vg->name);
 			if (!vgid_updated) {
-				_cache_update_vgid(info, (char *) &vg->id);
+				_lvmcache_update_vgid(info, (char *) &vg->id);
 				vgid_updated = 1;
 			}
 		}
@@ -378,15 +431,15 @@ int cache_update_vg(struct volume_group *vg)
 	return 1;
 }

-struct cache_info *cache_add(struct labeller *labeller, const char *pvid,
-			     struct device *dev,
-			     const char *vgname, const char *vgid)
+struct lvmcache_info *lvmcache_add(struct labeller *labeller, const char *pvid,
+				   struct device *dev,
+				   const char *vgname, const char *vgid)
 {
 	struct label *label;
-	struct cache_info *existing, *info;
+	struct lvmcache_info *existing, *info;
 	char pvid_s[ID_LEN + 1];

-	if (!_vgname_hash && !cache_init()) {
+	if (!_vgname_hash && !lvmcache_init()) {
 		log_error("Internal cache initialisation failed");
 		return NULL;
 	}
@@ -401,7 +454,7 @@ struct cache_info *cache_add(struct labeller *labeller, const char *pvid,
 			return NULL;
 		}
 		if (!(info = dbg_malloc(sizeof(*info)))) {
-			log_error("cache_info allocation failed");
+			log_error("lvmcache_info allocation failed");
 			label_destroy(label);
 			return NULL;
 		}
@@ -449,7 +502,7 @@ struct cache_info *cache_add(struct labeller *labeller, const char *pvid,
 	info->fmt = (const struct format_type *) labeller->private;
 	info->status |= CACHE_INVALID;

-	if (!_cache_update_pvid(info, pvid_s)) {
+	if (!_lvmcache_update_pvid(info, pvid_s)) {
 		if (!existing) {
 			dbg_free(info);
 			label_destroy(label);
@@ -457,7 +510,7 @@ struct cache_info *cache_add(struct labeller *labeller, const char *pvid,
 		return NULL;
 	}

-	if (!cache_update_vgname(info, vgname)) {
+	if (!lvmcache_update_vgname(info, vgname)) {
 		if (!existing) {
 			hash_remove(_pvid_hash, pvid_s);
 			strcpy(info->dev->pvid, "");
@@ -467,14 +520,14 @@ struct cache_info *cache_add(struct labeller *labeller, const char *pvid,
 		return NULL;
 	}

-	if (!_cache_update_vgid(info, vgid))
+	if (!_lvmcache_update_vgid(info, vgid))
 		/* Non-critical */
 		stack;

 	return info;
 }

-static void _cache_destroy_entry(struct cache_info *info)
+static void _lvmcache_destroy_entry(struct lvmcache_info *info)
 {
 	if (!list_empty(&info->list))
 		list_del(&info->list);
@@ -483,14 +536,19 @@ static void _cache_destroy_entry(struct cache_info *info)
 	dbg_free(info);
 }

-static void _cache_destroy_vgnamelist(struct cache_vginfo *vginfo)
+static void _lvmcache_destroy_vgnamelist(struct lvmcache_vginfo *vginfo)
 {
 	if (vginfo->vgname)
 		dbg_free(vginfo->vgname);
 	dbg_free(vginfo);
 }

-void cache_destroy(void)
+static void _lvmcache_destroy_lockname(int present)
+{
+	/* Nothing to do */
+}
+
+void lvmcache_destroy(void)
 {
 	_has_scanned = 0;

@@ -500,15 +558,23 @@ void cache_destroy(void)
 	}

 	if (_pvid_hash) {
-		hash_iter(_pvid_hash, (iterate_fn) _cache_destroy_entry);
+		hash_iter(_pvid_hash, (iterate_fn) _lvmcache_destroy_entry);
 		hash_destroy(_pvid_hash);
 		_pvid_hash = NULL;
 	}

 	if (_vgname_hash) {
-		hash_iter(_vgname_hash, (iterate_fn) _cache_destroy_vgnamelist);
+		hash_iter(_vgname_hash,
+			  (iterate_fn) _lvmcache_destroy_vgnamelist);
 		hash_destroy(_vgname_hash);
 		_vgname_hash = NULL;
 	}
+
+	if (_lock_hash) {
+		hash_iter(_lock_hash, (iterate_fn) _lvmcache_destroy_lockname);
+		hash_destroy(_lock_hash);
+		_lock_hash = NULL;
+	}
+
 	list_init(&_vginfos);
 }
--- a/lib/cache/lvmcache.h
+++ b/lib/cache/lvmcache.h
@@ -9,33 +9,31 @@
 #define _LVM_CACHE_H

 #include "dev-cache.h"
-#include "list.h"
 #include "uuid.h"
 #include "label.h"
 #include "metadata.h"

-#include <sys/types.h>
-
 #define ORPHAN ""

-#define CACHE_INVALID 0x00000001
+#define CACHE_INVALID	0x00000001
+#define CACHE_LOCKED	0x00000002

 /* LVM specific per-volume info */
 /* Eventual replacement for struct physical_volume perhaps? */

-struct cache_vginfo {
+struct lvmcache_vginfo {
 	struct list list;	/* Join these vginfos together */
-	struct list infos;	/* List head for cache_infos */
+	struct list infos;	/* List head for lvmcache_infos */
 	char *vgname;		/* "" == orphan */
 	char vgid[ID_LEN + 1];
 	const struct format_type *fmt;
 };

-struct cache_info {
+struct lvmcache_info {
 	struct list list;	/* Join VG members together */
 	struct list mdas;	/* list head for metadata areas */
 	struct list das;	/* list head for data areas */
-	struct cache_vginfo *vginfo;	/* NULL == unknown */
+	struct lvmcache_vginfo *vginfo;	/* NULL == unknown */
 	struct label *label;
 	const struct format_type *fmt;
 	struct device *dev;
@@ -43,31 +41,35 @@ struct cache_info {
 	uint32_t status;
 };

-int cache_init(void);
-void cache_destroy(void);
+int lvmcache_init(void);
+void lvmcache_destroy(void);

 /* Set full_scan to 1 to reread every filtered device label */
-int cache_label_scan(struct cmd_context *cmd, int full_scan);
+int lvmcache_label_scan(struct cmd_context *cmd, int full_scan);

 /* Add/delete a device */
-struct cache_info *cache_add(struct labeller *labeller, const char *pvid,
-			     struct device *dev,
-			     const char *vgname, const char *vgid);
-void cache_del(struct cache_info *info);
+struct lvmcache_info *lvmcache_add(struct labeller *labeller, const char *pvid,
+				   struct device *dev,
+				   const char *vgname, const char *vgid);
+void lvmcache_del(struct lvmcache_info *info);

 /* Update things */
-int cache_update_vgname(struct cache_info *info, const char *vgname);
-int cache_update_vg(struct volume_group *vg);
+int lvmcache_update_vgname(struct lvmcache_info *info, const char *vgname);
+int lvmcache_update_vg(struct volume_group *vg);
+
+void lvmcache_lock_vgname(const char *vgname, int read_only);
+void lvmcache_unlock_vgname(const char *vgname);

 /* Queries */
 const struct format_type *fmt_from_vgname(const char *vgname);
-struct cache_vginfo *vginfo_from_vgname(const char *vgname);
-struct cache_vginfo *vginfo_from_vgid(const char *vgid);
-struct cache_info *info_from_pvid(const char *pvid);
+struct lvmcache_vginfo *vginfo_from_vgname(const char *vgname);
+struct lvmcache_vginfo *vginfo_from_vgid(const char *vgid);
+struct lvmcache_info *info_from_pvid(const char *pvid);
 struct device *device_from_pvid(struct cmd_context *cmd, struct id *pvid);
+int vgs_locked(void);

 /* Returns list of struct str_lists containing pool-allocated copy of vgnames */
 /* Set full_scan to 1 to reread every filtered device label */
-struct list *cache_get_vgnames(struct cmd_context *cmd, int full_scan);
+struct list *lvmcache_get_vgnames(struct cmd_context *cmd, int full_scan);

 #endif
--- a/lib/commands/toolcontext.c
+++ b/lib/commands/toolcontext.c
@@ -19,8 +19,12 @@
 #include "label.h"
 #include "lvm-file.h"
 #include "format-text.h"
-#include "sharedlib.h"
 #include "display.h"
+#include "memlock.h"
+
+#ifdef HAVE_LIBDL
+#include "sharedlib.h"
+#endif

 #ifdef LVM1_INTERNAL
 #include "format1.h"
@@ -29,9 +33,12 @@
 #include <locale.h>
 #include <sys/stat.h>
 #include <syslog.h>
-#include <dlfcn.h>
 #include <time.h>

+#ifdef linux
+#  include <malloc.h>
+#endif
+
 static FILE *_log;

 static int _get_env_vars(struct cmd_context *cmd)
@@ -53,7 +60,7 @@ static int _get_env_vars(struct cmd_context *cmd)

 static void _init_logging(struct cmd_context *cmd)
 {
-	const char *open_mode = "a";
+	int append = 1;
 	time_t t;

 	const char *log_file;
@@ -98,16 +105,18 @@ static void _init_logging(struct cmd_context *cmd)
 	/* Settings for logging to file */
 	if (find_config_int(cmd->cf->root, "log/overwrite", '/',
 			    DEFAULT_OVERWRITE))
-		open_mode = "w";
+		append = 0;

 	log_file = find_config_str(cmd->cf->root, "log/file", '/', 0);
-	if (log_file) {
-		/* set up the logging */
-		if (!(_log = fopen(log_file, open_mode)))
-			log_error("Couldn't open log file %s", log_file);
-		else
-			init_log(_log);
-	}
+	if (log_file)
+		init_log_file(log_file, append);
+
+	log_file = find_config_str(cmd->cf->root, "log/activate_file", '/', 0);
+	if (log_file)
+		init_log_direct(log_file, append);
+
+	init_log_while_suspended(find_config_int(cmd->cf->root,
+						 "log/activation", '/', 0));

 	t = time(NULL);
 	log_verbose("Logging initialised at %s", ctime(&t));
@@ -138,7 +147,6 @@ static int _process_config(struct cmd_context *cmd)
 		log_error("Device directory given in config file too long");
 		return 0;
 	}
-
 #ifdef DEVMAPPER_SUPPORT
 	dm_set_dev_dir(cmd->dev_dir);
 #endif
@@ -271,12 +279,12 @@ static struct dev_filter *_init_filter_components(struct cmd_context *cmd)

 	if (!(f1 = regex_filter_create(cn->v))) {
 		log_error("Failed to create regex device filter");
-		return f2;
+		return NULL;
 	}

 	if (!(f3 = composite_filter_create(2, f1, f2))) {
 		log_error("Failed to create composite device filter");
-		return f2;
+		return NULL;
 	}

 	return f3;
@@ -284,7 +292,7 @@ static struct dev_filter *_init_filter_components(struct cmd_context *cmd)

 static int _init_filters(struct cmd_context *cmd)
 {
-	const char *lvm_cache;
+	const char *dev_cache;
 	struct dev_filter *f3, *f4;
 	struct stat st;
 	char cache_file[PATH_MAX];
@@ -301,9 +309,9 @@ static int _init_filters(struct cmd_context *cmd)
 		return 0;
 	}

-	lvm_cache =
+	dev_cache =
 	    find_config_str(cmd->cf->root, "devices/cache", '/', cache_file);
-	if (!(f4 = persistent_filter_create(f3, lvm_cache))) {
+	if (!(f4 = persistent_filter_create(f3, dev_cache))) {
 		log_error("Failed to create persistent device filter");
 		return 0;
 	}
@@ -315,11 +323,11 @@ static int _init_filters(struct cmd_context *cmd)
 	if (!*cmd->sys_dir)
 		cmd->dump_filter = 0;

-	if (!stat(lvm_cache, &st) &&
+	if (!stat(dev_cache, &st) &&
 	    (st.st_mtime > config_file_timestamp(cmd->cf)) &&
 	    !persistent_filter_load(f4))
 		log_verbose("Failed to load existing device cache from %s",
-			    lvm_cache);
+			    dev_cache);

 	cmd->filter = f4;

@@ -332,12 +340,10 @@ static int _init_formats(struct cmd_context *cmd)

 	struct format_type *fmt;
 	struct list *fmth;
+
+#ifdef HAVE_LIBDL
 	struct config_node *cn;
-	struct config_value *cv;
-
-	struct format_type *(*init_format_fn) (struct cmd_context *);
-
-	void *lib;
+#endif

 	label_init();

@@ -348,9 +354,15 @@ static int _init_formats(struct cmd_context *cmd)
 	list_add(&cmd->formats, &fmt->list);
 #endif

+#ifdef HAVE_LIBDL
 	/* Load any formats in shared libs */
 	if ((cn = find_config_node(cmd->cf->root, "global/format_libraries",
 				   '/'))) {
+
+		struct config_value *cv;
+		struct format_type *(*init_format_fn) (struct cmd_context *);
+		void *lib;
+
 		for (cv = cn->v; cv; cv = cv->next) {
 			if (cv->type != CFG_STRING) {
 				log_error("Invalid string in config file: "
@@ -376,6 +388,7 @@ static int _init_formats(struct cmd_context *cmd)
 			list_add(&cmd->formats, &fmt->list);
 		}
 	}
+#endif

 	if (!(fmt = create_text_format(cmd)))
 		return 0;
@@ -405,6 +418,10 @@ struct cmd_context *create_toolcontext(struct arg *the_args)
 {
 	struct cmd_context *cmd;

+#ifdef M_MMAP_MAX
+	mallopt(M_MMAP_MAX, 0);
+#endif
+
 	if (!setlocale(LC_ALL, ""))
 		log_error("setlocale failed");

@@ -446,6 +463,8 @@ struct cmd_context *create_toolcontext(struct arg *the_args)
 		return 0;
 	}

+	memlock_init(cmd);
+
 	if (!_init_formats(cmd))
 		goto error;

@@ -469,8 +488,10 @@ static void _destroy_formats(struct list *formats)
 		list_del(&fmt->list);
 		lib = fmt->library;
 		fmt->ops->destroy(fmt);
+#ifdef HAVE_LIBDL
 		if (lib)
 			dlclose(lib);
+#endif
 	}
 }

@@ -479,7 +500,8 @@ void destroy_toolcontext(struct cmd_context *cmd)
 	if (cmd->dump_filter)
 		persistent_filter_dump(cmd->filter);

-	cache_destroy();
+	activation_exit();
+	lvmcache_destroy();
 	label_exit();
 	_destroy_formats(&cmd->formats);
 	cmd->filter->destroy(cmd->filter);
@@ -488,6 +510,7 @@ void destroy_toolcontext(struct cmd_context *cmd)
 	destroy_config_tree(cmd->cf);
 	dbg_free(cmd);

+	release_log_memory();
 	dump_memory();
 	fin_log();
 	fin_syslog();
--- a/lib/commands/toolcontext.h
+++ b/lib/commands/toolcontext.h
@@ -53,6 +53,7 @@ struct cmd_context {
 	char *cmd_line;
 	struct command *command;
 	struct arg *args;
+	char **argv;

 	struct dev_filter *filter;
 	int dump_filter;	/* Dump filter when exiting? */
--- a/lib/config/config.c
+++ b/lib/config/config.c
@@ -15,7 +15,6 @@
 #include <unistd.h>
 #include <fcntl.h>
 #include <ctype.h>
-#include <asm/page.h>

 enum {
 	TOK_INT,
@@ -50,7 +49,7 @@ struct cs {
 	char *filename;
 };

-static void _get_token(struct parser *p);
+static void _get_token(struct parser *p, int tok_prev);
 static void _eat_space(struct parser *p);
 static struct config_node *_file(struct parser *p);
 static struct config_node *_section(struct parser *p);
@@ -111,14 +110,15 @@ void destroy_config_tree(struct config_tree *cf)
 	pool_destroy(((struct cs *) cf)->mem);
 }

-int read_config_fd(struct config_tree *cf, int fd, const char *file,
+int read_config_fd(struct config_tree *cf, struct device *dev,
 		   off_t offset, size_t size, off_t offset2, size_t size2,
 		   checksum_fn_t checksum_fn, uint32_t checksum)
 {
 	struct cs *c = (struct cs *) cf;
 	struct parser *p;
-	off_t mmap_offset = 0;
 	int r = 0;
+	int use_mmap = 1;
+	off_t mmap_offset = 0;

 	if (!(p = pool_alloc(c->mem, sizeof(*p)))) {
 		stack;
@@ -126,47 +126,43 @@ int read_config_fd(struct config_tree *cf, int fd, const char *file,
 	}
 	p->mem = c->mem;

-	if (size2) {
-		/* FIXME Attempt adjacent mmaps MAP_FIXED into malloced space 
-		 * one PAGE_SIZE larger than required...
-		 */
+	/* Only use mmap with regular files */
+	if (!(dev->flags & DEV_REGULAR) || size2)
+		use_mmap = 0;
+
+	if (use_mmap) {
+		mmap_offset = offset % getpagesize();
+		/* memory map the file */
+		p->fb = mmap((caddr_t) 0, size + mmap_offset, PROT_READ,
+			     MAP_PRIVATE, dev_fd(dev), offset - mmap_offset);
+		if (p->fb == (caddr_t) (-1)) {
+			log_sys_error("mmap", dev_name(dev));
+			goto out;
+		}
+		p->fb = p->fb + mmap_offset;
+	} else {
 		if (!(p->fb = dbg_malloc(size + size2))) {
 			stack;
 			return 0;
 		}
-		if (lseek(fd, offset, SEEK_SET) < 0) {
-			log_sys_error("lseek", file);
+		if (!dev_read(dev, (uint64_t) offset, size, p->fb)) {
+			log_error("Read from %s failed", dev_name(dev));
 			goto out;
 		}
-		if (raw_read(fd, p->fb, size) != size) {
-			log_error("Circular read from %s failed", file);
-			goto out;
+		if (size2) {
+			if (!dev_read(dev, (uint64_t) offset2, size2,
+				      p->fb + size)) {
+				log_error("Circular read from %s failed",
+					  dev_name(dev));
+				goto out;
+			}
 		}
-		if (lseek(fd, offset2, SEEK_SET) < 0) {
-			log_sys_error("lseek", file);
-			goto out;
-		}
-		if (raw_read(fd, p->fb + size, size2) != size2) {
-			log_error("Circular read from %s failed", file);
-			goto out;
-		}
-	} else {
-		mmap_offset = offset % PAGE_SIZE;
-		/* memory map the file */
-		p->fb = mmap((caddr_t) 0, size + mmap_offset, PROT_READ,
-			     MAP_PRIVATE, fd, offset - mmap_offset);
-		if (p->fb == (caddr_t) (-1)) {
-			log_sys_error("mmap", file);
-			goto out;
-		}
-
-		p->fb = p->fb + mmap_offset;
 	}

 	if (checksum_fn && checksum !=
 	    (checksum_fn(checksum_fn(INITIAL_CRC, p->fb, size),
 			 p->fb + size, size2))) {
-		log_error("%s: Checksum error", file);
+		log_error("%s: Checksum error", dev_name(dev));
 		goto out;
 	}

@@ -175,7 +171,7 @@ int read_config_fd(struct config_tree *cf, int fd, const char *file,
 	/* parse */
 	p->tb = p->te = p->fb;
 	p->line = 1;
-	_get_token(p);
+	_get_token(p, TOK_SECTION_E);
 	if (!(cf->root = _file(p))) {
 		stack;
 		goto out;
@@ -184,12 +180,12 @@ int read_config_fd(struct config_tree *cf, int fd, const char *file,
 	r = 1;

      out:
-	if (size2)
+	if (!use_mmap)
 		dbg_free(p->fb);
 	else {
 		/* unmap the file */
-		if (munmap((char *) (p->fb - mmap_offset), size)) {
-			log_sys_error("munmap", file);
+		if (munmap((char *) (p->fb - mmap_offset), size + mmap_offset)) {
+			log_sys_error("munmap", dev_name(dev));
 			r = 0;
 		}
 	}
@@ -201,7 +197,8 @@ int read_config_file(struct config_tree *cf, const char *file)
 {
 	struct cs *c = (struct cs *) cf;
 	struct stat info;
-	int r = 1, fd;
+	struct device *dev;
+	int r = 1;

 	if (stat(file, &info)) {
 		log_sys_error("stat", file);
@@ -218,15 +215,20 @@ int read_config_file(struct config_tree *cf, const char *file)
 		return 1;
 	}

-	if ((fd = open(file, O_RDONLY)) < 0) {
-		log_sys_error("open", file);
+	if (!(dev = dev_create_file(file, NULL, NULL))) {
+		stack;
 		return 0;
 	}

-	r = read_config_fd(cf, fd, file, 0, (size_t) info.st_size, 0, 0,
+	if (!dev_open_flags(dev, O_RDONLY, 0, 0)) {
+		stack;
+		return 0;
+	}
+
+	r = read_config_fd(cf, dev, 0, (size_t) info.st_size, 0, 0,
 			   (checksum_fn_t) NULL, 0);

-	close(fd);
+	dev_close(dev);

 	c->timestamp = info.st_mtime;
 	c->filename = pool_strdup(c->mem, file);
@@ -250,7 +252,8 @@ int reload_config_file(struct config_tree **cf)
 	struct cs *c = (struct cs *) *cf;
 	struct cs *new_cs;
 	struct stat info;
-	int r, fd;
+	struct device *dev;
+	int r;

 	if (!c->filename)
 		return 0;
@@ -280,19 +283,25 @@ int reload_config_file(struct config_tree **cf)
 		return 0;
 	}

-	if ((fd = open(c->filename, O_RDONLY)) < 0) {
-		log_sys_error("open", c->filename);
-		return 0;
-	}
-
 	if (!(new_cf = create_config_tree())) {
 		log_error("Allocation of new config_tree failed");
 		return 0;
 	}

-	r = read_config_fd(new_cf, fd, c->filename, 0, (size_t) info.st_size,
+	if (!(dev = dev_create_file(c->filename, NULL, NULL))) {
+		stack;
+		return 0;
+	}
+
+	if (!dev_open_flags(dev, O_RDONLY, 0, 0)) {
+		stack;
+		return 0;
+	}
+
+	r = read_config_fd(new_cf, dev, 0, (size_t) info.st_size,
 			   0, 0, (checksum_fn_t) NULL, 0);
-	close(fd);
+
+	dev_close(dev);

 	if (r) {
 		new_cs = (struct cs *) new_cf;
@@ -536,15 +545,17 @@ static int _match_aux(struct parser *p, int t)
 	if (p->t != t)
 		return 0;

-	_get_token(p);
+	_get_token(p, t);
 	return 1;
 }

 /*
 * tokeniser
 */
-static void _get_token(struct parser *p)
+static void _get_token(struct parser *p, int tok_prev)
 {
+	int values_allowed = 0;
+
 	p->tb = p->te;
 	_eat_space(p);
 	if (p->tb == p->fe || !*p->tb) {
@@ -552,6 +563,11 @@ static void _get_token(struct parser *p)
 		return;
 	}

+	/* Should next token be interpreted as value instead of identifier? */
+	if (tok_prev == TOK_EQ || tok_prev == TOK_ARRAY_B ||
+	    tok_prev == TOK_COMMA)
+		values_allowed = 1;
+
 	p->t = TOK_INT;		/* fudge so the fall through for
 				   floats works */
 	switch (*p->te) {
@@ -599,6 +615,16 @@ static void _get_token(struct parser *p)
 			p->te++;
 		break;

+	case '\'':
+		p->t = TOK_STRING;
+		p->te++;
+		while ((p->te != p->fe) && (*p->te) && (*p->te != '\''))
+			p->te++;
+
+		if ((p->te != p->fe) && (*p->te))
+			p->te++;
+		break;
+
 	case '.':
 		p->t = TOK_FLOAT;
 	case '0':
@@ -611,22 +637,25 @@ static void _get_token(struct parser *p)
 	case '7':
 	case '8':
 	case '9':
-		p->te++;
-		while ((p->te != p->fe) && (*p->te)) {
-			if (*p->te == '.') {
-				if (p->t == TOK_FLOAT)
-					break;
-				p->t = TOK_FLOAT;
-			} else if (!isdigit((int) *p->te))
-				break;
+		if (values_allowed) {
 			p->te++;
+			while ((p->te != p->fe) && (*p->te)) {
+				if (*p->te == '.') {
+					if (p->t == TOK_FLOAT)
+						break;
+					p->t = TOK_FLOAT;
+				} else if (!isdigit((int) *p->te))
+					break;
+				p->te++;
+			}
+			break;
 		}
-		break;

 	default:
 		p->t = TOK_IDENTIFIER;
 		while ((p->te != p->fe) && (*p->te) && !isspace(*p->te) &&
-		       (*p->te != '#') && (*p->te != '='))
+		       (*p->te != '#') && (*p->te != '=') && (*p->te != '{') &&
+		       (*p->te != '}'))
 			p->te++;
 		break;
 	}
--- a/lib/config/config.h
+++ b/lib/config/config.h
@@ -7,8 +7,7 @@
 #ifndef _LVM_CONFIG_H
 #define _LVM_CONFIG_H

-#include <inttypes.h>
-#include <sys/types.h>
+#include "device.h"

 enum {
 	CFG_STRING,
@@ -42,7 +41,7 @@ void destroy_config_tree(struct config_tree *cf);

 typedef uint32_t (*checksum_fn_t) (uint32_t initial, void *buf, uint32_t size);

-int read_config_fd(struct config_tree *cf, int fd, const char *file,
+int read_config_fd(struct config_tree *cf, struct device *dev,
 		   off_t offset, size_t size, off_t offset2, size_t size2,
 		   checksum_fn_t checksum_fn, uint32_t checksum);

--- a/lib/config/defaults.h
+++ b/lib/config/defaults.h
@@ -26,22 +26,22 @@
 #define DEFAULT_UMASK 0077

 #ifdef LVM1_SUPPORT
-  #define DEFAULT_FORMAT "lvm1"
+#  define DEFAULT_FORMAT "lvm1"
 #else
-  #define DEFAULT_FORMAT "lvm2"
+#  define DEFAULT_FORMAT "lvm2"
 #endif

 #define DEFAULT_STRIPESIZE 64	/* KB */
 #define DEFAULT_PVMETADATASIZE 255
 #define DEFAULT_PVMETADATACOPIES 1
-#define DEFAULT_LABELSECTOR __UINT64_C(1)
+#define DEFAULT_LABELSECTOR UINT64_C(1)

 #define DEFAULT_MSG_PREFIX "  "
 #define DEFAULT_CMD_NAME 0
 #define DEFAULT_OVERWRITE 0

 #ifndef DEFAULT_LOG_FACILITY
-  #define DEFAULT_LOG_FACILITY LOG_USER
+#  define DEFAULT_LOG_FACILITY LOG_USER
 #endif

 #define DEFAULT_SYSLOG 1
@@ -52,13 +52,20 @@
 #define DEFAULT_SUFFIX 1

 #ifdef DEVMAPPER_SUPPORT
-  #define DEFAULT_ACTIVATION 1
+#  define DEFAULT_ACTIVATION 1
+#  define DEFAULT_RESERVED_MEMORY 8192
+#  define DEFAULT_RESERVED_STACK 256
+#  define DEFAULT_PROCESS_PRIORITY -18
 #else
-  #define DEFAULT_ACTIVATION 0
+#  define DEFAULT_ACTIVATION 0
 #endif

+#define DEFAULT_STRIPE_FILLER "/dev/ioerror"
+#define DEFAULT_MIRROR_REGION_SIZE 512	/* KB */
+#define DEFAULT_INTERVAL 15
+
 #ifdef READLINE_SUPPORT
-  #define DEFAULT_MAX_HISTORY 100
+#  define DEFAULT_MAX_HISTORY 100
 #endif

 #define DEFAULT_REP_ALIGNED 1
@@ -66,12 +73,12 @@
 #define DEFAULT_REP_HEADINGS 1
 #define DEFAULT_REP_SEPARATOR " "

-#define DEFAULT_LVS_COLS "lv_name,vg_name,lv_attr,lv_size,origin,snap_percent"
+#define DEFAULT_LVS_COLS "lv_name,vg_name,lv_attr,lv_size,origin,snap_percent,move_pv,move_percent"
 #define DEFAULT_VGS_COLS "vg_name,pv_count,lv_count,snap_count,vg_attr,vg_size,vg_free"
 #define DEFAULT_PVS_COLS "pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free"
 #define DEFAULT_SEGS_COLS "lv_name,vg_name,lv_attr,stripes,segtype,seg_size"

-#define DEFAULT_LVS_COLS_VERB "lv_name,vg_name,seg_count,lv_attr,lv_size,lv_minor,origin,snap_percent,lv_uuid"
+#define DEFAULT_LVS_COLS_VERB "lv_name,vg_name,seg_count,lv_attr,lv_size,lv_major,lv_minor,origin,snap_percent,move_pv,move_percent,lv_uuid"
 #define DEFAULT_VGS_COLS_VERB "vg_name,vg_attr,vg_extent_size,pv_count,lv_count,snap_count,vg_size,vg_free,vg_uuid"
 #define DEFAULT_PVS_COLS_VERB "pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free,pv_uuid"
 #define DEFAULT_SEGS_COLS_VERB "lv_name,vg_name,lv_attr,seg_start,seg_size,stripes,segtype,stripesize,chunksize"
--- a/lib/datastruct/bitset.h
+++ b/lib/datastruct/bitset.h
@@ -7,7 +7,6 @@
 #ifndef _LVM_BITSET_H
 #define _LVM_BITSET_H

-#include "lvm-types.h"
 #include "pool.h"

 #include <limits.h>
--- a/lib/datastruct/btree.h
+++ b/lib/datastruct/btree.h
@@ -7,7 +7,6 @@
 #ifndef _LVM_BTREE_H
 #define _LVM_BTREE_H

-#include "lvm-types.h"
 #include "pool.h"

 struct btree;
--- a/lib/datastruct/hash.c
+++ b/lib/datastruct/hash.c
@@ -59,10 +59,10 @@ static struct hash_node *_create_node(const char *str)
 	return n;
 }

-static unsigned _hash(const char *str, unsigned len)
+static unsigned _hash(const char *str)
 {
 	unsigned long h = 0, g;
-	while (*str && len--) {
+	while (*str) {
 		h <<= 4;
 		h += _nums[(int) *str++];
 		g = h & ((unsigned long) 0xf << 16u);
@@ -125,30 +125,18 @@ void hash_destroy(struct hash_table *t)
 	dbg_free(t);
 }

-static inline struct hash_node **_find_fixed(struct hash_table *t,
-					     const char *key, unsigned len)
+static inline struct hash_node **_find(struct hash_table *t, const char *key)
 {
-	unsigned h = _hash(key, len) & (t->num_slots - 1);
+	unsigned h = _hash(key) & (t->num_slots - 1);
 	struct hash_node **c;

 	for (c = &t->slots[h]; *c; c = &((*c)->next))
-		if (!strncmp(key, (*c)->key, len))
+		if (!strcmp(key, (*c)->key))
 			break;

 	return c;
 }

-static inline struct hash_node **_find(struct hash_table *t, const char *key)
-{
-	return _find_fixed(t, key, strlen(key));
-}
-
-void *hash_lookup_fixed(struct hash_table *t, const char *key, unsigned len)
-{
-	struct hash_node **c = _find_fixed(t, key, len);
-	return *c ? (*c)->data : 0;
-}
-
 void *hash_lookup(struct hash_table *t, const char *key)
 {
 	struct hash_node **c = _find(t, key);
@@ -238,6 +226,6 @@ struct hash_node *hash_get_first(struct hash_table *t)

 struct hash_node *hash_get_next(struct hash_table *t, struct hash_node *n)
 {
-	unsigned h = _hash(n->key, strlen(n->key)) & (t->num_slots - 1);
+	unsigned h = _hash(n->key) & (t->num_slots - 1);
 	return n->next ? n->next : _next_slot(t, h + 1);
 }
--- a/lib/datastruct/hash.h
+++ b/lib/datastruct/hash.h
@@ -7,8 +7,6 @@
 #ifndef _LVM_HASH_H
 #define _LVM_HASH_H

-#include "lvm-types.h"
-
 struct hash_table;
 struct hash_node;

--- a/lib/datastruct/list.h
+++ b/lib/datastruct/list.h
@@ -7,10 +7,14 @@
 #ifndef _LVM_LIST_H
 #define _LVM_LIST_H

+#include <assert.h>
+
 struct list {
 	struct list *n, *p;
 };

+#define LIST_INIT(name)	struct list name = { &(name), &(name) }
+
 static inline void list_init(struct list *head)
 {
 	head->n = head->p = head;
@@ -54,9 +58,17 @@ static inline int list_end(struct list *head, struct list *elem)
 	return elem->n == head;
 }

+static inline struct list *list_next(struct list *head, struct list *elem)
+{
+	return (list_end(head, elem) ? NULL : elem->n);
+}
+
 #define list_iterate(v, head) \
 	for (v = (head)->n; v != head; v = v->n)

+#define list_uniterate(v, head, start) \
+	for (v = (start)->p; v != head; v = v->p)
+
 #define list_iterate_safe(v, t, head) \
 	for (v = (head)->n, t = v->n; v != head; v = t, t = v->n)

@@ -74,8 +86,14 @@ static inline unsigned int list_size(const struct list *head)
 #define list_item(v, t) \
    ((t *)((uintptr_t)(v) - (uintptr_t)&((t *) 0)->list))

-/* Given a known element in a known structure, locate the struct list */
-#define list_head(v, t, e) \
-    (((t *)((uintptr_t)(v) - (uintptr_t)&((t *) 0)->e))->list)
+#define list_struct_base(v, t, h) \
+    ((t *)((uintptr_t)(v) - (uintptr_t)&((t *) 0)->h))
+
+/* Given a known element in a known structure, locate another */
+#define struct_field(v, t, e, f) \
+    (((t *)((uintptr_t)(v) - (uintptr_t)&((t *) 0)->e))->f)
+
+/* Given a known element in a known structure, locate the list head */
+#define list_head(v, t, e) struct_field(v, t, e, list)

 #endif
--- a/lib/datastruct/lvm-types.h
+++ b/lib/datastruct/lvm-types.h
@@ -13,15 +13,11 @@
 #include <inttypes.h>

 /* Define some portable printing types */
-#if __WORDSIZE == 64
-#define PRIsize_t "lu"
-#else
-#define PRIsize_t "u"
-#endif
+#define PRIsize_t "Zu"

 struct str_list {
 	struct list list;
-	char *str;
+	const char *str;
 };

 #endif
--- a/lib/device/dev-cache.c
+++ b/lib/device/dev-cache.c
@@ -11,12 +11,11 @@
 #include "list.h"
 #include "lvm-types.h"
 #include "btree.h"
+#include "filter.h"

-#include <sys/stat.h>
 #include <unistd.h>
 #include <sys/param.h>
 #include <dirent.h>
-#include <linux/kdev_t.h>

 struct dev_iter {
 	struct btree_iter *current;
@@ -43,7 +42,44 @@ static struct {

 static int _insert(const char *path, int rec);

-static struct device *_create_dev(dev_t d)
+struct device *dev_create_file(const char *filename, struct device *dev,
+			       struct str_list *alias)
+{
+	int allocate = !dev;
+
+	if (allocate && !(dev = dbg_malloc(sizeof(*dev)))) {
+		log_error("struct device allocation failed");
+		return NULL;
+	}
+	if (allocate && !(alias = dbg_malloc(sizeof(*alias)))) {
+		log_error("struct str_list allocation failed");
+		dbg_free(dev);
+		return NULL;
+	}
+	if (!(alias->str = dbg_strdup(filename))) {
+		log_error("filename strdup failed");
+		if (allocate) {
+			dbg_free(dev);
+			dbg_free(alias);
+		}
+		return NULL;
+	}
+	dev->flags = DEV_REGULAR;
+	if (allocate)
+		dev->flags |= DEV_ALLOCED;
+	list_init(&dev->aliases);
+	list_add(&dev->aliases, &alias->list);
+	dev->end = UINT64_C(0);
+	dev->dev = 0;
+	dev->fd = -1;
+	dev->open_count = 0;
+	memset(dev->pvid, 0, sizeof(dev->pvid));
+	list_init(&dev->open_list);
+
+	return dev;
+}
+
+static struct device *_dev_create(dev_t d)
 {
 	struct device *dev;

@@ -51,12 +87,14 @@ static struct device *_create_dev(dev_t d)
 		log_error("struct device allocation failed");
 		return NULL;
 	}
-
+	dev->flags = 0;
 	list_init(&dev->aliases);
 	dev->dev = d;
 	dev->fd = -1;
-	dev->flags = 0;
+	dev->open_count = 0;
+	dev->end = UINT64_C(0);
 	memset(dev->pvid, 0, sizeof(dev->pvid));
+	list_init(&dev->open_list);

 	return dev;
 }
@@ -176,7 +214,7 @@ static int _insert_dev(const char *path, dev_t d)
 	if (!(dev = (struct device *) btree_lookup(_cache.devices,
 						   (uint32_t) d))) {
 		/* create new device */
-		if (!(dev = _create_dev(d))) {
+		if (!(dev = _dev_create(d))) {
 			stack;
 			return 0;
 		}
@@ -403,20 +441,31 @@ int dev_cache_add_dir(const char *path)

 /* Check cached device name is still valid before returning it */
 /* This should be a rare occurrence */
+/* set quiet if the cache is expected to be out-of-date */
 /* FIXME Make rest of code pass/cache struct device instead of dev_name */
-const char *dev_name_confirmed(struct device *dev)
+const char *dev_name_confirmed(struct device *dev, int quiet)
 {
 	struct stat buf;
-	char *name;
+	const char *name;
 	int r;

 	while ((r = stat(name = list_item(dev->aliases.n,
 					  struct str_list)->str, &buf)) ||
 	       (buf.st_rdev != dev->dev)) {
-		if (r < 0)
-			log_sys_error("stat", name);
-		log_error("Path %s no longer valid for device(%d,%d)",
-			  name, (int) MAJOR(dev->dev), (int) MINOR(dev->dev));
+		if (r < 0) {
+			if (quiet)
+				log_sys_debug("stat", name);
+			else
+				log_sys_error("stat", name);
+		}
+		if (quiet)
+			log_debug("Path %s no longer valid for device(%d,%d)",
+			  	  name, (int) MAJOR(dev->dev),
+				  (int) MINOR(dev->dev));
+		else
+			log_error("Path %s no longer valid for device(%d,%d)",
+				  name, (int) MAJOR(dev->dev),
+				  (int) MINOR(dev->dev));

 		/* Remove the incorrect hash entry */
 		hash_remove(_cache.names, name);
--- a/lib/device/dev-cache.h
+++ b/lib/device/dev-cache.h
@@ -7,7 +7,6 @@
 #ifndef _LVM_DEV_CACHE_H
 #define _LVM_DEV_CACHE_H

-#include <sys/types.h>
 #include "lvm-types.h"
 #include "device.h"

--- a/lib/device/dev-io.c
+++ b/lib/device/dev-io.c
@@ -5,26 +5,205 @@
 */

 #include "lib.h"
-#include "device.h"
 #include "lvm-types.h"
+#include "device.h"
 #include "metadata.h"
+#include "lvmcache.h"
+#include "memlock.h"

 #include <limits.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <unistd.h>
-#include <linux/unistd.h>
 #include <sys/ioctl.h>
-#include <linux/fs.h>		// UGH!!! for BLKSSZGET

-/* FIXME 64 bit offset!!!
+#ifdef linux
+#  define u64 uint64_t		/* Missing without __KERNEL__ */
+#  undef WNOHANG		/* Avoid redefinition */
+#  undef WUNTRACED		/* Avoid redefinition */
+#  include <linux/fs.h>		/* For block ioctl definitions */
+#  define BLKSIZE_SHIFT SECTOR_SHIFT
+#else
+#  include <sys/disk.h>
+#  define BLKBSZGET DKIOCGETBLOCKSIZE
+#  define BLKSSZGET DKIOCGETBLOCKSIZE
+#  define BLKGETSIZE64 DKIOCGETBLOCKCOUNT
+#  define BLKFLSBUF DKIOCSYNCHRONIZECACHE
+#  define BLKSIZE_SHIFT 0
+#  ifndef O_DIRECT
+#    define O_DIRECT	0
+#  endif
+#endif
+
+/* FIXME Use _llseek for 64-bit
 _syscall5(int,  _llseek,  uint,  fd, ulong, hi, ulong, lo, loff_t *, res, uint, wh);
+ if (_llseek((unsigned) fd, (ulong) (offset >> 32), (ulong) (offset & 0xFFFFFFFF), &pos, SEEK_SET) < 0) { 
 */

+static LIST_INIT(_open_devices);
+
+/*-----------------------------------------------------------------
+ * The standard io loop that keeps submitting an io until it's
+ * all gone.
+ *---------------------------------------------------------------*/
+static int _io(struct device_area *where, void *buffer, int should_write)
+{
+	int fd = dev_fd(where->dev);
+	ssize_t n = 0;
+	size_t total = 0;
+
+	if (fd < 0) {
+		log_error("Attempt to read an unopened device (%s).",
+			  dev_name(where->dev));
+		return 0;
+	}
+
+	/*
+	 * Skip all writes in test mode.
+	 */
+	if (should_write && test_mode())
+		return 1;
+
+	if (where->size > SSIZE_MAX) {
+		log_error("Read size too large: %" PRIu64, where->size);
+		return 0;
+	}
+
+	if (lseek(fd, (off_t) where->start, SEEK_SET) < 0) {
+		log_sys_error("lseek", dev_name(where->dev));
+		return 0;
+	}
+
+	while (total < (size_t) where->size) {
+		do
+			n = should_write ?
+			    write(fd, buffer, (size_t) where->size - total) :
+			    read(fd, buffer, (size_t) where->size - total);
+		while ((n < 0) && ((errno == EINTR) || (errno == EAGAIN)));
+
+		if (n <= 0)
+			break;
+
+		total += n;
+		buffer += n;
+	}
+
+	return (total == (size_t) where->size);
+}
+
+/*-----------------------------------------------------------------
+ * LVM2 uses O_DIRECT when performing metadata io, which requires
+ * block size aligned accesses.  If any io is not aligned we have
+ * to perform the io via a bounce buffer, obviously this is quite
+ * inefficient.
+ *---------------------------------------------------------------*/
+
+/*
+ * Get the sector size from an _open_ device.
+ */
+static int _get_block_size(struct device *dev, unsigned int *size)
+{
+	int s;
+
+	if (ioctl(dev_fd(dev), BLKBSZGET, &s) < 0) {
+		log_sys_error("ioctl BLKBSZGET", dev_name(dev));
+		return 0;
+	}
+
+	*size = (unsigned int) s;
+	return 1;
+}
+
+/*
+ * Widens a region to be an aligned region.
+ */
+static void _widen_region(unsigned int block_size, struct device_area *region,
+			  struct device_area *result)
+{
+	uint64_t mask = block_size - 1, delta;
+	memcpy(result, region, sizeof(*result));
+
+	/* adjust the start */
+	delta = result->start & mask;
+	if (delta) {
+		result->start -= delta;
+		result->size += delta;
+	}
+
+	/* adjust the end */
+	delta = (result->start + result->size) & mask;
+	if (delta)
+		result->size += block_size - delta;
+}
+
+static int _aligned_io(struct device_area *where, void *buffer,
+		       int should_write)
+{
+	void *bounce;
+	unsigned int block_size = 0;
+	uintptr_t mask;
+	struct device_area widened;
+
+	if (!(where->dev->flags & DEV_REGULAR) &&
+	    !_get_block_size(where->dev, &block_size)) {
+		stack;
+		return 0;
+	}
+
+	if (!block_size)
+		block_size = SECTOR_SIZE * 2;
+
+	_widen_region(block_size, where, &widened);
+
+	/* Do we need to use a bounce buffer? */
+	mask = block_size - 1;
+	if (!memcmp(where, &widened, sizeof(widened)) &&
+	    !((uintptr_t) buffer & mask))
+		return _io(where, buffer, should_write);
+
+	/* Allocate a bounce buffer with an extra block */
+	if (!(bounce = alloca((size_t) widened.size + block_size))) {
+		log_error("Bounce buffer alloca failed");
+		return 0;
+	}
+
+	/*
+	 * Realign start of bounce buffer (using the extra sector)
+	 */
+	if (((uintptr_t) bounce) & mask)
+		bounce = (void *) ((((uintptr_t) bounce) + mask) & ~mask);
+
+	/* channel the io through the bounce buffer */
+	if (!_io(&widened, bounce, 0)) {
+		if (!should_write) {
+			stack;
+			return 0;
+		}
+		/* FIXME pre-extend the file */
+		memset(bounce, '\n', widened.size);
+	}
+
+	if (should_write) {
+		memcpy(bounce + (where->start - widened.start), buffer,
+		       (size_t) where->size);
+
+		/* ... then we write */
+		return _io(&widened, bounce, 1);
+	}
+
+	memcpy(buffer, bounce + (where->start - widened.start),
+	       (size_t) where->size);
+
+	return 1;
+}
+
+/*-----------------------------------------------------------------
+ * Public functions
+ *---------------------------------------------------------------*/
+
 int dev_get_size(struct device *dev, uint64_t *size)
 {
 	int fd;
-	long s;
 	const char *name = dev_name(dev);

 	log_very_verbose("Getting size of %s", name);
@@ -33,15 +212,14 @@ int dev_get_size(struct device *dev, uint64_t *size)
 		return 0;
 	}

-	/* FIXME: add 64 bit ioctl */
-	if (ioctl(fd, BLKGETSIZE, &s) < 0) {
-		log_sys_error("ioctl BLKGETSIZE", name);
+	if (ioctl(fd, BLKGETSIZE64, size) < 0) {
+		log_sys_error("ioctl BLKGETSIZE64", name);
 		close(fd);
 		return 0;
 	}

+	*size >>= BLKSIZE_SHIFT;	/* Convert to sectors */
 	close(fd);
-	*size = (uint64_t) s;
 	return 1;
 }

@@ -68,48 +246,106 @@ int dev_get_sectsize(struct device *dev, uint32_t *size)
 	return 1;
 }

-static void _flush(int fd)
+void dev_flush(struct device *dev)
 {
-	ioctl(fd, BLKFLSBUF, 0);
+	if (!(dev->flags & DEV_REGULAR) && ioctl(dev->fd, BLKFLSBUF, 0) >= 0)
+		return;
+
+	if (fsync(dev->fd) >= 0)
+		return;
+
+	sync();
 }

-int dev_open(struct device *dev, int flags)
+int dev_open_flags(struct device *dev, int flags, int direct, int quiet)
 {
 	struct stat buf;
-	const char *name = dev_name_confirmed(dev);
+	const char *name;

-	if (!name) {
+	if (dev->fd >= 0) {
+		dev->open_count++;
+		return 1;
+	}
+
+	if (memlock())
+		log_error("WARNING: dev_open(%s) called while suspended",
+			  dev_name(dev));
+
+	if (dev->flags & DEV_REGULAR)
+		name = dev_name(dev);
+	else if (!(name = dev_name_confirmed(dev, quiet))) {
 		stack;
 		return 0;
 	}

-	if (dev->fd >= 0) {
-		log_error("Device '%s' has already been opened", name);
-		return 0;
-	}
-
-	if ((stat(name, &buf) < 0) || (buf.st_rdev != dev->dev)) {
+	if (!(dev->flags & DEV_REGULAR) &&
+	    ((stat(name, &buf) < 0) || (buf.st_rdev != dev->dev))) {
 		log_error("%s: stat failed: Has device name changed?", name);
 		return 0;
 	}

-	if ((dev->fd = open(name, flags)) < 0) {
+	if (direct)
+		flags |= O_DIRECT;
+
+	if ((dev->fd = open(name, flags, 0777)) < 0) {
 		log_sys_error("open", name);
 		return 0;
 	}

-	if ((fstat(dev->fd, &buf) < 0) || (buf.st_rdev != dev->dev)) {
+	dev->open_count = 1;
+	dev->flags &= ~DEV_ACCESSED_W;
+
+	if (!(dev->flags & DEV_REGULAR) &&
+	    ((fstat(dev->fd, &buf) < 0) || (buf.st_rdev != dev->dev))) {
 		log_error("%s: fstat failed: Has device name changed?", name);
 		dev_close(dev);
 		dev->fd = -1;
 		return 0;
 	}
-	_flush(dev->fd);
-	dev->flags = 0;
+#if !O_DIRECT
+	if (!(dev->flags & DEV_REGULAR))
+		dev_flush(dev);
+#endif
+
+	if ((flags & O_CREAT) && !(flags & O_TRUNC)) {
+		dev->end = lseek(dev->fd, (off_t) 0, SEEK_END);
+	}
+
+	list_add(&_open_devices, &dev->open_list);
+	log_debug("Opened %s", dev_name(dev));

 	return 1;
 }

+int dev_open_quiet(struct device *dev)
+{
+	/* FIXME Open O_RDONLY if vg read lock? */
+	return dev_open_flags(dev, O_RDWR, 1, 1);
+}
+
+int dev_open(struct device *dev)
+{
+	/* FIXME Open O_RDONLY if vg read lock? */
+	return dev_open_flags(dev, O_RDWR, 1, 0);
+}
+
+static void _close(struct device *dev)
+{
+	if (close(dev->fd))
+		log_sys_error("close", dev_name(dev));
+	dev->fd = -1;
+	list_del(&dev->open_list);
+
+	log_debug("Closed %s", dev_name(dev));
+
+	if (dev->flags & DEV_ALLOCED) {
+		dbg_free((void *) list_item(dev->aliases.n, struct str_list)->
+			 str);
+		dbg_free(dev->aliases.n);
+		dbg_free(dev);
+	}
+}
+
 int dev_close(struct device *dev)
 {
 	if (dev->fd < 0) {
@@ -117,126 +353,91 @@ int dev_close(struct device *dev)
 			  "which is not open.", dev_name(dev));
 		return 0;
 	}
-
+#if !O_DIRECT
 	if (dev->flags & DEV_ACCESSED_W)
-		_flush(dev->fd);
+		dev_flush(dev);
+#endif

-	if (close(dev->fd))
-		log_sys_error("close", dev_name(dev));
-
-	dev->fd = -1;
+	/* FIXME lookup device in cache to get vgname and see if it's locked? */
+	if (--dev->open_count < 1 && !vgs_locked())
+		_close(dev);

 	return 1;
 }

-ssize_t raw_read(int fd, void *buf, size_t count)
+void dev_close_all(void)
 {
-	ssize_t n = 0, tot = 0;
+	struct list *doh, *doht;
+	struct device *dev;

-	if (count > SSIZE_MAX)
-		return -1;
-
-	while (tot < (signed) count) {
-		do
-			n = read(fd, buf, count - tot);
-		while ((n < 0) && ((errno == EINTR) || (errno == EAGAIN)));
-
-		if (n <= 0)
-			return tot ? tot : n;
-
-		tot += n;
-		buf += n;
+	list_iterate_safe(doh, doht, &_open_devices) {
+		dev = list_struct_base(doh, struct device, open_list);
+		if (dev->open_count < 1)
+			_close(dev);
 	}
-
-	return tot;
 }

-ssize_t dev_read(struct device *dev, uint64_t offset, size_t len, void *buffer)
+int dev_read(struct device *dev, uint64_t offset, size_t len, void *buffer)
 {
-	const char *name = dev_name(dev);
-	int fd = dev->fd;
-	/* loff_t pos; */
+	struct device_area where;

-	if (fd < 0) {
-		log_err("Attempt to read an unopened device (%s).", name);
+	if (!dev->open_count)
 		return 0;
-	}

-	/* if (_llseek((unsigned) fd, (ulong) (offset >> 32), (ulong) (offset & 0xFFFFFFFF), &pos, SEEK_SET) < 0) { */
-	if (lseek(fd, (off_t) offset, SEEK_SET) < 0) {
-		log_sys_error("lseek", name);
-		return 0;
-	}
+	where.dev = dev;
+	where.start = offset;
+	where.size = len;

-	return raw_read(fd, buffer, len);
+	return _aligned_io(&where, buffer, 0);
 }

-static int _write(int fd, const void *buf, size_t count)
+/* FIXME If O_DIRECT can't extend file, dev_extend first; dev_truncate after.
+ *       But fails if concurrent processes writing
+ */
+
+/* FIXME pre-extend the file */
+int dev_append(struct device *dev, size_t len, void *buffer)
 {
-	ssize_t n = 0;
-	int tot = 0;
+	int r;

-	/* Skip all writes */
-	if (test_mode())
-		return count;
+	if (!dev->open_count)
+		return 0;

-	while (tot < count) {
-		do
-			n = write(fd, buf, count - tot);
-		while ((n < 0) && ((errno == EINTR) || (errno == EAGAIN)));
+	r = dev_write(dev, dev->end, len, buffer);
+	dev->end += (uint64_t) len;

-		if (n <= 0)
-			return tot ? tot : n;
-
-		tot += n;
-		buf += n;
-	}
-
-	return tot;
+#if !O_DIRECT
+	dev_flush(dev);
+#endif
+	return r;
 }

-int64_t dev_write(struct device * dev, uint64_t offset, size_t len,
-		  void *buffer)
+int dev_write(struct device *dev, uint64_t offset, size_t len, void *buffer)
 {
-	const char *name = dev_name(dev);
-	int fd = dev->fd;
+	struct device_area where;

-	if (fd < 0) {
-		log_error("Attempt to write to unopened device %s", name);
+	if (!dev->open_count)
 		return 0;
-	}

-	if (lseek(fd, (off_t) offset, SEEK_SET) < 0) {
-		log_sys_error("lseek", name);
-		return 0;
-	}
+	where.dev = dev;
+	where.start = offset;
+	where.size = len;

 	dev->flags |= DEV_ACCESSED_W;

-	return _write(fd, buffer, len);
+	return _aligned_io(&where, buffer, 1);
 }

 int dev_zero(struct device *dev, uint64_t offset, size_t len)
 {
-	int64_t r;
 	size_t s;
 	char buffer[4096];
-	int already_open;

-	already_open = dev_is_open(dev);
-
-	if (!already_open && !dev_open(dev, O_RDWR)) {
+	if (!dev_open(dev)) {
 		stack;
 		return 0;
 	}

-	if (lseek(dev->fd, (off_t) offset, SEEK_SET) < 0) {
-		log_sys_error("lseek", dev_name(dev));
-		if (!already_open && !dev_close(dev))
-			stack;
-		return 0;
-	}
-
 	if ((offset % SECTOR_SIZE) || (len % SECTOR_SIZE))
 		log_debug("Wiping %s at %" PRIu64 " length %" PRIsize_t,
 			  dev_name(dev), offset, len);
@@ -248,21 +449,17 @@ int dev_zero(struct device *dev, uint64_t offset, size_t len)
 	memset(buffer, 0, sizeof(buffer));
 	while (1) {
 		s = len > sizeof(buffer) ? sizeof(buffer) : len;
-		r = _write(dev->fd, buffer, s);
-
-		if (r <= 0)
+		if (!dev_write(dev, offset, s, buffer))
 			break;

-		len -= r;
-		if (!len) {
-			r = 1;
+		len -= s;
+		if (!len)
 			break;
-		}
 	}

 	dev->flags |= DEV_ACCESSED_W;

-	if (!already_open && !dev_close(dev))
+	if (!dev_close(dev))
 		stack;

 	/* FIXME: Always display error */
--- a/lib/device/device.c
+++ b/lib/device/device.c
@@ -18,7 +18,6 @@
 */

 #if 0
-#include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/mman.h>
 #include <stdio.h>
--- a/lib/device/device.h
+++ b/lib/device/device.h
@@ -7,11 +7,12 @@
 #ifndef _LVM_DEVICE_H
 #define _LVM_DEVICE_H

-#include "lvm-types.h"
-#include "list.h"
 #include "uuid.h"
+#include <fcntl.h>

 #define DEV_ACCESSED_W		0x00000001	/* Device written to? */
+#define DEV_REGULAR		0x00000002	/* Regular file? */
+#define DEV_ALLOCED		0x00000004	/* dbg_malloc used */

 /*
 * All devices in LVM will be represented by one of these.
@@ -23,7 +24,10 @@ struct device {

 	/* private */
 	int fd;
+	int open_count;
 	uint32_t flags;
+	uint64_t end;
+	struct list open_list;

 	char pvid[ID_LEN + 1];
 };
@@ -45,20 +49,26 @@ struct device_area {
 int dev_get_size(struct device *dev, uint64_t *size);
 int dev_get_sectsize(struct device *dev, uint32_t *size);

-int dev_open(struct device *dev, int flags);
+/* Use quiet version if device number could change e.g. when opening LV */
+int dev_open(struct device *dev);
+int dev_open_quiet(struct device *dev);
+int dev_open_flags(struct device *dev, int flags, int append, int quiet);
 int dev_close(struct device *dev);
+void dev_close_all(void);

 static inline int dev_fd(struct device *dev)
 {
 	return dev->fd;
 }

-ssize_t raw_read(int fd, void *buf, size_t count);
-
-ssize_t dev_read(struct device *dev, uint64_t offset, size_t len, void *buffer);
-int64_t dev_write(struct device *dev, uint64_t offset, size_t len,
-		  void *buffer);
+int dev_read(struct device *dev, uint64_t offset, size_t len, void *buffer);
+int dev_write(struct device *dev, uint64_t offset, size_t len, void *buffer);
+int dev_append(struct device *dev, size_t len, void *buffer);
 int dev_zero(struct device *dev, uint64_t offset, size_t len);
+void dev_flush(struct device *dev);
+
+struct device *dev_create_file(const char *filename, struct device *dev,
+			       struct str_list *alias);

 static inline const char *dev_name(const struct device *dev)
 {
@@ -67,12 +77,7 @@ static inline const char *dev_name(const struct device *dev)
 }

 /* Return a valid device name from the alias list; NULL otherwise */
-const char *dev_name_confirmed(struct device *dev);
-
-static inline int dev_is_open(struct device *dev)
-{
-	return dev->fd >= 0 ? 1 : 0;
-}
+const char *dev_name_confirmed(struct device *dev, int quiet);

 /* FIXME Check partition type if appropriate */

--- a/lib/display/display.c
+++ b/lib/display/display.c
@@ -42,7 +42,7 @@ static struct {
 } _segtypes[] = {
 	{
 	SEG_STRIPED, "striped"}, {
-	SEG_MIRROR, "mirror"}, {
+	SEG_MIRRORED, "mirror"}, {
 	SEG_SNAPSHOT, "snapshot"}
 };

@@ -70,18 +70,20 @@ uint64_t units_to_bytes(const char *units, char *unit_type)
 	switch (*units) {
 	case 'h':
 	case 'H':
-		v = __UINT64_C(1);
+		v = UINT64_C(1);
 		*unit_type = *units;
 		break;
 	case 's':
 		v *= SECTOR_SIZE;
+		break;
 	case 'b':
 	case 'B':
-		v *= __UINT64_C(1);
+		v *= UINT64_C(1);
 		break;
-#define KILO __UINT64_C(1024)
+#define KILO UINT64_C(1024)
 	case 'k':
 		v *= KILO;
+		break;
 	case 'm':
 		v *= KILO * KILO;
 		break;
@@ -92,7 +94,7 @@ uint64_t units_to_bytes(const char *units, char *unit_type)
 		v *= KILO * KILO * KILO * KILO;
 		break;
 #undef KILO
-#define KILO __UINT64_C(1000)
+#define KILO UINT64_C(1000)
 	case 'K':
 		v *= KILO;
 		break;
@@ -166,8 +168,8 @@ const char *display_size(struct cmd_context *cmd, uint64_t size, size_len_t sl)
 {
 	int s;
 	int suffix = 1;
-	uint64_t byte;
-	uint64_t units = __UINT64_C(1024);
+	uint64_t byte = UINT64_C(0);
+	uint64_t units = UINT64_C(1024);
 	char *size_buf = NULL;
 	const char *size_str[][3] = {
 		{" Terabyte", " TB", "T"},
@@ -193,20 +195,20 @@ const char *display_size(struct cmd_context *cmd, uint64_t size, size_len_t sl)
 		    *size_str[s][2])
 			break;

-	if (size == __UINT64_C(0)) {
+	if (size == UINT64_C(0)) {
 		sprintf(size_buf, "0%s", suffix ? size_str[s][sl] : "");
 		return size_buf;
 	}

 	if (s < 8) {
 		byte = cmd->current_settings.unit_factor;
-		size *= __UINT64_C(1024);
+		size *= UINT64_C(1024);
 	} else {
 		suffix = 1;
 		if (cmd->current_settings.unit_type == 'H')
-			units = __UINT64_C(1000);
+			units = UINT64_C(1000);
 		else
-			units = __UINT64_C(1024);
+			units = UINT64_C(1024);
 		byte = units * units * units;
 		s = 0;
 		while (size_str[s] && size < byte)
@@ -461,8 +463,11 @@ int lvdisplay_full(struct cmd_context *cmd, struct logical_volume *lv,
 	log_print("Allocation             %s", get_alloc_string(lv->alloc));
 	log_print("Read ahead sectors     %u", lv->read_ahead);

-	if (lv->status & FIXED_MINOR)
+	if (lv->status & FIXED_MINOR) {
+		if (lv->major >= 0)
+			log_print("Persistent major       %d", lv->major);
 		log_print("Persistent minor       %d", lv->minor);
+	}

 	if (inkernel)
 		log_print("Block device           %d:%d", info.major,
@@ -475,14 +480,28 @@ int lvdisplay_full(struct cmd_context *cmd, struct logical_volume *lv,

 static void _display_stripe(struct lv_segment *seg, uint32_t s, const char *pre)
 {
-	uint32_t len = seg->len / seg->stripes;
+	switch (seg->area[s].type) {
+	case AREA_PV:
+		log_print("%sPhysical volume\t%s", pre,
+			  seg->area[s].u.pv.pv ?
+			  dev_name(seg->area[s].u.pv.pv->dev) : "Missing");

-	log_print("%sPhysical volume\t%s", pre,
-		  seg->area[s].pv ? dev_name(seg->area[s].pv->dev) : "Missing");
+		if (seg->area[s].u.pv.pv)
+			log_print("%sPhysical extents\t%d to %d", pre,
+				  seg->area[s].u.pv.pe,
+				  seg->area[s].u.pv.pe + seg->area_len - 1);
+		break;
+	case AREA_LV:
+		log_print("%sLogical volume\t%s", pre,
+			  seg->area[s].u.lv.lv ?
+			  seg->area[s].u.lv.lv->name : "Missing");

-	if (seg->area[s].pv)
-		log_print("%sPhysical extents\t%d to %d", pre,
-			  seg->area[s].pe, seg->area[s].pe + len - 1);
+		if (seg->area[s].u.lv.lv)
+			log_print("%sLogical extents\t%d to %d", pre,
+				  seg->area[s].u.lv.le,
+				  seg->area[s].u.lv.le + seg->area_len - 1);
+
+	}
 }

 int lvdisplay_segments(struct logical_volume *lv)
@@ -499,7 +518,7 @@ int lvdisplay_segments(struct logical_volume *lv)
 		log_print("Logical extent %u to %u:",
 			  seg->le, seg->le + seg->len - 1);

-		if (seg->type == SEG_STRIPED && seg->stripes == 1)
+		if (seg->type == SEG_STRIPED && seg->area_count == 1)
 			log_print("  Type\t\tlinear");
 		else
 			log_print("  Type\t\t%s",
@@ -507,14 +526,14 @@ int lvdisplay_segments(struct logical_volume *lv)

 		switch (seg->type) {
 		case SEG_STRIPED:
-			if (seg->stripes == 1)
+			if (seg->area_count == 1)
 				_display_stripe(seg, 0, "  ");
 			else {
-				log_print("  Stripes\t\t%u", seg->stripes);
+				log_print("  Stripes\t\t%u", seg->area_count);
 				log_print("  Stripe size\t\t%u KB",
 					  seg->stripe_size / 2);

-				for (s = 0; s < seg->stripes; s++) {
+				for (s = 0; s < seg->area_count; s++) {
 					log_print("  Stripe %d:", s);
 					_display_stripe(seg, s, "    ");
 				}
@@ -522,8 +541,16 @@ int lvdisplay_segments(struct logical_volume *lv)
 			log_print(" ");
 			break;
 		case SEG_SNAPSHOT:
-		case SEG_MIRROR:
-			;
+			break;
+		case SEG_MIRRORED:
+			log_print("  Mirrors\t\t%u", seg->area_count);
+			log_print("  Mirror size\t\t%u", seg->area_len);
+			log_print("  Mirror original:");
+			_display_stripe(seg, 0, "    ");
+			log_print("  Mirror destination:");
+			_display_stripe(seg, 1, "    ");
+			log_print(" ");
+			break;
 		}
 	}

--- a/lib/filters/filter.c
+++ b/lib/filters/filter.c
@@ -25,11 +25,10 @@
 #include "config.h"

 #include <dirent.h>
-#include <sys/stat.h>
 #include <unistd.h>
 #include <ctype.h>
 #include <fcntl.h>
-#include <linux/kdev_t.h>
+#include <limits.h>

 #define NUMBER_OF_MAJORS 256

@@ -105,6 +104,14 @@ static int *_scan_proc_dev(const char *proc, struct config_node *cn)
 		return NULL;
 	}

+	if (!*proc) {
+		log_verbose("No proc filesystem found: using all block device "
+			    "types");
+		for (i = 0; i < NUMBER_OF_MAJORS; i++)
+			max_partitions_by_major[i] = 1;
+		return max_partitions_by_major;
+	}
+
 	if (lvm_snprintf(proc_devices, sizeof(proc_devices),
 			 "%s/devices", proc) < 0) {
 		log_error("Failed to create /proc/devices string");
--- a/lib/filters/filter.h
+++ b/lib/filters/filter.h
@@ -23,6 +23,16 @@

 #include "config.h"

+#include <sys/stat.h>
+
+#ifdef linux
+#  include <linux/kdev_t.h>
+#else
+#  define MAJOR(x) major((x))
+#  define MINOR(x) minor((x))
+#  define MKDEV(x,y) makedev((x),(y))
+#endif
+
 struct dev_filter *lvm_type_filter_create(const char *proc,
 					  struct config_node *cn);

--- a/lib/format1/disk-rep.c
+++ b/lib/format1/disk-rep.c
@@ -9,11 +9,9 @@
 #include "pool.h"
 #include "xlate.h"
 #include "filter.h"
-#include "cache.h"
+#include "lvmcache.h"

-#include <sys/stat.h>
 #include <fcntl.h>
-#include <linux/kdev_t.h>

 #define fail do {stack; return 0;} while(0)
 #define xx16(v) disk->v = xlate16(disk->v)
@@ -132,7 +130,7 @@ static int _munge_formats(struct pv_disk *pvd)

 static int _read_pvd(struct device *dev, struct pv_disk *pvd)
 {
-	if (dev_read(dev, __UINT64_C(0), sizeof(*pvd), pvd) != sizeof(*pvd)) {
+	if (!dev_read(dev, UINT64_C(0), sizeof(*pvd), pvd)) {
 		log_very_verbose("Failed to read PV data from %s",
 				 dev_name(dev));
 		return 0;
@@ -157,7 +155,7 @@ static int _read_pvd(struct device *dev, struct pv_disk *pvd)

 static int _read_lvd(struct device *dev, uint64_t pos, struct lv_disk *disk)
 {
-	if (dev_read(dev, pos, sizeof(*disk), disk) != sizeof(*disk))
+	if (!dev_read(dev, pos, sizeof(*disk), disk))
 		fail;

 	_xlate_lvd(disk);
@@ -169,7 +167,7 @@ static int _read_vgd(struct disk_list *data)
 {
 	struct vg_disk *vgd = &data->vgd;
 	uint64_t pos = data->pvd.vg_on_disk.base;
-	if (dev_read(data->dev, pos, sizeof(*vgd), vgd) != sizeof(*vgd))
+	if (!dev_read(data->dev, pos, sizeof(*vgd), vgd))
 		fail;

 	_xlate_vgd(vgd);
@@ -186,8 +184,7 @@ static int _read_uuids(struct disk_list *data)
 	uint64_t end = pos + data->pvd.pv_uuidlist_on_disk.size;

 	while (pos < end && num_read < data->vgd.pv_cur) {
-		if (dev_read(data->dev, pos, sizeof(buffer), buffer) !=
-		    sizeof(buffer))
+		if (!dev_read(data->dev, pos, sizeof(buffer), buffer))
 			fail;

 		if (!(ul = pool_alloc(data->mem, sizeof(*ul))))
@@ -246,7 +243,7 @@ static int _read_extents(struct disk_list *data)
 	if (!extents)
 		fail;

-	if (dev_read(data->dev, pos, len, extents) != len)
+	if (!dev_read(data->dev, pos, len, extents))
 		fail;

 	_xlate_extents(extents, data->pvd.pe_total);
@@ -281,7 +278,7 @@ static struct disk_list *__read_disk(const struct format_type *fmt,
 {
 	struct disk_list *dl = pool_alloc(mem, sizeof(*dl));
 	const char *name = dev_name(dev);
-	struct cache_info *info;
+	struct lvmcache_info *info;

 	if (!dl) {
 		stack;
@@ -298,8 +295,8 @@ static struct disk_list *__read_disk(const struct format_type *fmt,
 		goto bad;
 	}

-	if (!(info = cache_add(fmt->labeller, dl->pvd.pv_uuid, dev,
-			       dl->pvd.vg_name, NULL)))
+	if (!(info = lvmcache_add(fmt->labeller, dl->pvd.pv_uuid, dev,
+				  dl->pvd.vg_name, NULL)))
 		stack;
 	else {
 		info->device_size = xlate32(dl->pvd.pv_size) << SECTOR_SHIFT;
@@ -367,7 +364,7 @@ struct disk_list *read_disk(const struct format_type *fmt, struct device *dev,
 {
 	struct disk_list *r;

-	if (!dev_open(dev, O_RDONLY)) {
+	if (!dev_open(dev)) {
 		stack;
 		return NULL;
 	}
@@ -417,13 +414,13 @@ int read_pvs_in_vg(const struct format_type *fmt, const char *vg_name,
 	struct device *dev;
 	struct disk_list *data = NULL;
 	struct list *vgih;
-	struct cache_vginfo *vginfo;
+	struct lvmcache_vginfo *vginfo;

 	/* Fast path if we already saw this VG and cached the list of PVs */
 	if (vg_name && (vginfo = vginfo_from_vgname(vg_name)) &&
 	    vginfo->infos.n) {
 		list_iterate(vgih, &vginfo->infos) {
-			dev = list_item(vgih, struct cache_info)->dev;
+			dev = list_item(vgih, struct lvmcache_info)->dev;
 			if (dev && !(data = read_disk(fmt, dev, mem, vg_name)))
 				break;
 			_add_pv_to_list(head, data);
@@ -465,7 +462,7 @@ static int _write_vgd(struct disk_list *data)
 	uint64_t pos = data->pvd.vg_on_disk.base;

 	_xlate_vgd(vgd);
-	if (dev_write(data->dev, pos, sizeof(*vgd), vgd) != sizeof(*vgd))
+	if (!dev_write(data->dev, pos, sizeof(*vgd), vgd))
 		fail;

 	_xlate_vgd(vgd);
@@ -488,7 +485,7 @@ static int _write_uuids(struct disk_list *data)
 		}

 		ul = list_item(uh, struct uuid_list);
-		if (dev_write(data->dev, pos, NAME_LEN, ul->uuid) != NAME_LEN)
+		if (!dev_write(data->dev, pos, NAME_LEN, ul->uuid))
 			fail;

 		pos += NAME_LEN;
@@ -500,7 +497,7 @@ static int _write_uuids(struct disk_list *data)
 static int _write_lvd(struct device *dev, uint64_t pos, struct lv_disk *disk)
 {
 	_xlate_lvd(disk);
-	if (dev_write(dev, pos, sizeof(*disk), disk) != sizeof(*disk))
+	if (!dev_write(dev, pos, sizeof(*disk), disk))
 		fail;

 	_xlate_lvd(disk);
@@ -544,7 +541,7 @@ static int _write_extents(struct disk_list *data)
 	uint64_t pos = data->pvd.pe_on_disk.base;

 	_xlate_extents(extents, data->pvd.pe_total);
-	if (dev_write(data->dev, pos, len, extents) != len)
+	if (!dev_write(data->dev, pos, len, extents))
 		fail;

 	_xlate_extents(extents, data->pvd.pe_total);
@@ -576,7 +573,7 @@ static int _write_pvd(struct disk_list *data)
 	memcpy(buf, &data->pvd, sizeof(struct pv_disk));

 	_xlate_pvd((struct pv_disk *) buf);
-	if (dev_write(data->dev, pos, size, buf) != size) {
+	if (!dev_write(data->dev, pos, size, buf)) {
 		dbg_free(buf);
 		fail;
 	}
@@ -642,7 +639,7 @@ static int _write_all_pvd(const struct format_type *fmt, struct disk_list *data)
 {
 	int r;

-	if (!dev_open(data->dev, O_WRONLY)) {
+	if (!dev_open(data->dev)) {
 		stack;
 		return 0;
 	}
--- a/lib/format1/format1.c
+++ b/lib/format1/format1.c
@@ -12,7 +12,7 @@
 #include "list.h"
 #include "display.h"
 #include "toolcontext.h"
-#include "cache.h"
+#include "lvmcache.h"
 #include "lvm1-label.h"
 #include "format1.h"

@@ -248,7 +248,7 @@ static int _vg_write(struct format_instance *fid, struct volume_group *vg,
 			 fid->fmt->cmd->filter) &&
 	     write_disks(fid->fmt, &pvds));

-	cache_update_vg(vg);
+	lvmcache_update_vg(vg);
 	pool_destroy(mem);
 	return r;
 }
@@ -381,10 +381,10 @@ static int _pv_write(const struct format_type *fmt, struct physical_volume *pv,
 	struct disk_list *dl;
 	struct list pvs;
 	struct label *label;
-	struct cache_info *info;
+	struct lvmcache_info *info;

-	if (!(info = cache_add(fmt->labeller, (char *) &pv->id, pv->dev,
-			       pv->vg_name, NULL))) {
+	if (!(info = lvmcache_add(fmt->labeller, (char *) &pv->id, pv->dev,
+				  pv->vg_name, NULL))) {
 		stack;
 		return 0;
 	}
@@ -533,6 +533,7 @@ static struct format_handler _format1_ops = {
 #ifdef LVM1_INTERNAL
 struct format_type *init_lvm1_format(struct cmd_context *cmd)
 #else				/* Shared */
+struct format_type *init_format(struct cmd_context *cmd);
 struct format_type *init_format(struct cmd_context *cmd)
 #endif
 {
--- a/lib/format1/import-export.c
+++ b/lib/format1/import-export.c
@@ -12,10 +12,10 @@
 #include "hash.h"
 #include "list.h"
 #include "lvm-string.h"
+#include "filter.h"

 #include <time.h>
 #include <sys/utsname.h>
-#include <linux/kdev_t.h>

 static int _check_vg_name(const char *name)
 {
@@ -288,8 +288,11 @@ int import_lv(struct pool *mem, struct logical_volume *lv, struct lv_disk *lvd)
 	if (lvd->lv_status & LV_PERSISTENT_MINOR) {
 		lv->status |= FIXED_MINOR;
 		lv->minor = MINOR(lvd->lv_dev);
-	} else
+		lv->major = MAJOR(lvd->lv_dev);
+	} else {
+		lv->major = -1;
 		lv->minor = -1;
+	}

 	if (lvd->lv_access & LV_READ)
 		lv->status |= LVM_READ;
@@ -335,13 +338,14 @@ static void _export_lv(struct lv_disk *lvd, struct volume_group *vg,

 	if (lv->status & FIXED_MINOR) {
 		lvd->lv_status |= LV_PERSISTENT_MINOR;
-		lvd->lv_dev = MKDEV(0, lv->minor);
+		lvd->lv_dev = MKDEV(lv->major, lv->minor);
 	}

 	lvd->lv_read_ahead = lv->read_ahead;
-	lvd->lv_stripes = list_item(lv->segments.n, struct lv_segment)->stripes;
-	lvd->lv_stripesize = list_item(lv->segments.n,
-				       struct lv_segment)->stripe_size;
+	lvd->lv_stripes =
+	    list_item(lv->segments.n, struct lv_segment)->area_count;
+	lvd->lv_stripesize =
+	    list_item(lv->segments.n, struct lv_segment)->stripe_size;

 	lvd->lv_size = lv->size;
 	lvd->lv_allocated_le = lv->le_count;
@@ -364,15 +368,25 @@ int export_extents(struct disk_list *dl, uint32_t lv_num,
 	list_iterate(segh, &lv->segments) {
 		seg = list_item(segh, struct lv_segment);

-		for (s = 0; s < seg->stripes; s++) {
-			if (seg->area[s].pv != pv)
+		for (s = 0; s < seg->area_count; s++) {
+			if (seg->type != SEG_STRIPED) {
+				log_error("Non-striped segment type in LV %s: "
+					  "unsupported by format1", lv->name);
+				return 0;
+			}
+			if (seg->area[s].type != AREA_PV) {
+				log_error("LV stripe found in LV %s: "
+					  "unsupported by format1", lv->name);
+				return 0;
+			}
+			if (seg->area[s].u.pv.pv != pv)
 				continue;	/* not our pv */

-			for (pe = 0; pe < (seg->len / seg->stripes); pe++) {
-				ped = &dl->extents[pe + seg->area[s].pe];
+			for (pe = 0; pe < (seg->len / seg->area_count); pe++) {
+				ped = &dl->extents[pe + seg->area[s].u.pv.pe];
 				ped->lv_num = lv_num;
-				ped->le_num = (seg->le / seg->stripes) + pe +
-				    s * (lv->le_count / seg->stripes);
+				ped->le_num = (seg->le / seg->area_count) + pe +
+				    s * (lv->le_count / seg->area_count);
 			}
 		}
 	}
@@ -393,7 +407,7 @@ int import_pvs(const struct format_type *fmt, struct pool *mem,

 		dl = list_item(pvdh, struct disk_list);

-		if (!(pvl = pool_alloc(mem, sizeof(*pvl))) ||
+		if (!(pvl = pool_zalloc(mem, sizeof(*pvl))) ||
 		    !(pvl->pv = pool_alloc(mem, sizeof(*pvl->pv)))) {
 			stack;
 			return 0;
--- a/lib/format1/import-extents.c
+++ b/lib/format1/import-extents.c
@@ -216,19 +216,21 @@ static int _read_linear(struct pool *mem, struct lv_map *lvm)
 		seg->type = SEG_STRIPED;
 		seg->le = le;
 		seg->len = 0;
+		seg->area_len = 0;
 		seg->stripe_size = 0;
-		seg->stripes = 1;
+		seg->area_count = 1;

-		seg->area[0].pv = lvm->map[le].pv;
-		seg->area[0].pe = lvm->map[le].pe;
+		seg->area[0].type = AREA_PV;
+		seg->area[0].u.pv.pv = lvm->map[le].pv;
+		seg->area[0].u.pv.pe = lvm->map[le].pe;

-		do
+		do {
 			seg->len++;
-
-		while ((lvm->map[le + seg->len].pv == seg->area[0].pv) &&
-		       (seg->area[0].pv &&
-			lvm->map[le + seg->len].pe == seg->area[0].pe +
-			seg->len));
+			seg->area_len++;
+		} while ((lvm->map[le + seg->len].pv == seg->area[0].u.pv.pv) &&
+			 (seg->area[0].u.pv.pv &&
+			  lvm->map[le + seg->len].pe == seg->area[0].u.pv.pe +
+			  seg->len));

 		le += seg->len;

@@ -248,10 +250,11 @@ static int _check_stripe(struct lv_map *lvm, struct lv_segment *seg,
 	/*
 	 * Is the next physical extent in every stripe adjacent to the last?
 	 */
-	for (st = 0; st < seg->stripes; st++)
-		if ((lvm->map[le + st * len].pv != seg->area[st].pv) ||
-		    (seg->area[st].pv &&
-		     lvm->map[le + st * len].pe != seg->area[st].pe + seg->len))
+	for (st = 0; st < seg->area_count; st++)
+		if ((lvm->map[le + st * len].pv != seg->area[st].u.pv.pv) ||
+		    (seg->area[st].u.pv.pv &&
+		     lvm->map[le + st * len].pe !=
+		     seg->area[st].u.pv.pe + seg->len))
 			return 0;

 	return 1;
@@ -281,27 +284,30 @@ static int _read_stripes(struct pool *mem, struct lv_map *lvm)
 		seg->lv = lvm->lv;
 		seg->type = SEG_STRIPED;
 		seg->stripe_size = lvm->stripe_size;
-		seg->stripes = lvm->stripes;
-		seg->le = seg->stripes * le;
+		seg->area_count = lvm->stripes;
+		seg->le = seg->area_count * le;
 		seg->len = 1;
+		seg->area_len = 1;

 		/*
 		 * Set up start positions of each stripe in this segment
 		 */
-		for (st = 0; st < seg->stripes; st++) {
-			seg->area[st].pv = lvm->map[le + st * len].pv;
-			seg->area[st].pe = lvm->map[le + st * len].pe;
+		for (st = 0; st < seg->area_count; st++) {
+			seg->area[st].u.pv.pv = lvm->map[le + st * len].pv;
+			seg->area[st].u.pv.pe = lvm->map[le + st * len].pe;
 		}

 		/* 
 		 * Find how many blocks are contiguous in all stripes
 		 * and so can form part of this segment
 		 */
-		while (_check_stripe(lvm, seg, le, len))
+		while (_check_stripe(lvm, seg, le, len)) {
 			seg->len++;
+			seg->area_len++;
+		}

 		le += seg->len;
-		seg->len *= seg->stripes;
+		seg->len *= seg->area_count;

 		list_add(&lvm->lv->segments, &seg->list);
 	}
--- a/lib/format1/layout.c
+++ b/lib/format1/layout.c
@@ -10,13 +10,13 @@
 /*
 * Only works with powers of 2.
 */
-static inline ulong _round_up(ulong n, ulong size)
+static inline uint32_t _round_up(uint32_t n, uint32_t size)
 {
 	size--;
 	return (n + size) & ~size;
 }

-static inline ulong _div_up(ulong n, ulong size)
+static inline uint32_t _div_up(uint32_t n, uint32_t size)
 {
 	return _round_up(n, size) / size;
 }
--- a/lib/format1/lvm1-label.c
+++ b/lib/format1/lvm1-label.c
@@ -10,7 +10,7 @@
 #include "label.h"
 #include "metadata.h"
 #include "xlate.h"
-#include "cache.h"
+#include "lvmcache.h"

 #include <sys/stat.h>
 #include <fcntl.h>
@@ -49,9 +49,9 @@ static int _read(struct labeller *l, struct device *dev, char *buf,
 		 struct label **label)
 {
 	struct pv_disk *pvd = (struct pv_disk *) buf;
-	struct cache_info *info;
+	struct lvmcache_info *info;

-	if (!(info = cache_add(l, pvd->pv_uuid, dev, pvd->vg_name, NULL)))
+	if (!(info = lvmcache_add(l, pvd->pv_uuid, dev, pvd->vg_name, NULL)))
 		return 0;
 	*label = info->label;

--- a/lib/format_text/export.c
+++ b/lib/format_text/export.c
@@ -372,6 +372,7 @@ static int _print_segment(struct formatter *f, struct volume_group *vg,
 {
 	unsigned int s;
 	const char *name;
+	const char *type;

 	_outf(f, "segment%u {", count);
 	_inc_indent(f);
@@ -387,40 +388,55 @@ static int _print_segment(struct formatter *f, struct volume_group *vg,
 	_outf(f, "type = \"%s\"", get_segtype_string(seg->type));

 	switch (seg->type) {
-	case SEG_STRIPED:
-		_outf(f, "stripe_count = %u%s", seg->stripes,
-		      (seg->stripes == 1) ? "\t# linear" : "");
-
-		if (seg->stripes > 1)
-			_out_size(f, (uint64_t) seg->stripe_size,
-				  "stripe_size = %u", seg->stripe_size);
-
-		f->nl(f);
-		_outf(f, "stripes = [");
-		_inc_indent(f);
-
-		for (s = 0; s < seg->stripes; s++) {
-			if (!(name = _get_pv_name(f, seg->area[s].pv))) {
-				stack;
-				return 0;
-			}
-
-			_outf(f, "\"%s\", %u%s", name, seg->area[s].pe,
-			      (s == seg->stripes - 1) ? "" : ",");
-		}
-
-		_dec_indent(f);
-		_outf(f, "]");
-		break;
-
 	case SEG_SNAPSHOT:
 		_outf(f, "chunk_size = %u", seg->chunk_size);
 		_outf(f, "origin = \"%s\"", seg->origin->name);
 		_outf(f, "cow_store = \"%s\"", seg->cow->name);
 		break;
-	case SEG_MIRROR:
-		/* mirrors = [ "lvol1", 10, ... ] */
-		;
+
+	case SEG_MIRRORED:
+	case SEG_STRIPED:
+		type = (seg->type == SEG_MIRRORED) ? "mirror" : "stripe";
+		_outf(f, "%s_count = %u%s", type, seg->area_count,
+		      (seg->area_count == 1) ? "\t# linear" : "");
+
+		if ((seg->type == SEG_MIRRORED) && (seg->status & PVMOVE))
+			_out_size(f, (uint64_t) seg->extents_moved,
+				  "extents_moved = %u", seg->extents_moved);
+
+		if ((seg->type == SEG_STRIPED) && (seg->area_count > 1))
+			_out_size(f, (uint64_t) seg->stripe_size,
+				  "stripe_size = %u", seg->stripe_size);
+
+		f->nl(f);
+
+		_outf(f, "%ss = [", type);
+		_inc_indent(f);
+
+		for (s = 0; s < seg->area_count; s++) {
+			switch (seg->area[s].type) {
+			case AREA_PV:
+				if (!(name = _get_pv_name(f, seg->
+							  area[s].u.pv.pv))) {
+					stack;
+					return 0;
+				}
+
+				_outf(f, "\"%s\", %u%s", name,
+				      seg->area[s].u.pv.pe,
+				      (s == seg->area_count - 1) ? "" : ",");
+				break;
+			case AREA_LV:
+				_outf(f, "\"%s\", %u%s",
+				      seg->area[s].u.lv.lv->name,
+				      seg->area[s].u.lv.le,
+				      (s == seg->area_count - 1) ? "" : ",");
+			}
+		}
+
+		_dec_indent(f);
+		_outf(f, "]");
+		break;
 	}

 	_dec_indent(f);
@@ -547,6 +563,8 @@ static int _print_lvs(struct formatter *f, struct volume_group *vg)
 			      get_alloc_string(lv->alloc));
 		if (lv->read_ahead)
 			_outf(f, "read_ahead = %u", lv->read_ahead);
+		if (lv->major >= 0)
+			_outf(f, "major = %d", lv->major);
 		if (lv->minor >= 0)
 			_outf(f, "minor = %d", lv->minor);
 		_outf(f, "segment_count = %u", _count_segments(lv));
@@ -602,6 +620,7 @@ static int _build_pv_names(struct formatter *f, struct volume_group *vg)
 	list_iterate(pvh, &vg->pvs) {
 		pv = list_item(pvh, struct pv_list)->pv;

+		/* FIXME But skip if there's already an LV called pv%d ! */
 		if (lvm_snprintf(buffer, sizeof(buffer), "pv%d", count++) < 0) {
 			stack;
 			goto bad;
--- a/lib/format_text/flags.c
+++ b/lib/format_text/flags.c
@@ -22,6 +22,7 @@ static struct flag _vg_flags[] = {
 	{EXPORTED_VG, "EXPORTED"},
 	{RESIZEABLE_VG, "RESIZEABLE"},
 	{PARTIAL_VG, "PARTIAL"},
+	{PVMOVE, "PVMOVE"},
 	{LVM_READ, "READ"},
 	{LVM_WRITE, "WRITE"},
 	{CLUSTERED, "CLUSTERED"},
@@ -40,6 +41,8 @@ static struct flag _lv_flags[] = {
 	{LVM_WRITE, "WRITE"},
 	{FIXED_MINOR, "FIXED_MINOR"},
 	{VISIBLE_LV, "VISIBLE"},
+	{PVMOVE, "PVMOVE"},
+	{LOCKED, "LOCKED"},
 	{0, NULL}
 };

--- a/lib/format_text/format-text.c
+++ b/lib/format_text/format-text.c
@@ -20,6 +20,7 @@
 #include "crc.h"
 #include "xlate.h"
 #include "label.h"
+#include "memlock.h"

 #include <unistd.h>
 #include <sys/file.h>
@@ -107,8 +108,7 @@ static struct mda_header *_raw_read_mda_header(const struct format_type *fmt,
 		return NULL;
 	}

-	if (dev_read(dev_area->dev, dev_area->start, MDA_HEADER_SIZE, mdah) !=
-	    MDA_HEADER_SIZE) {
+	if (!dev_read(dev_area->dev, dev_area->start, MDA_HEADER_SIZE, mdah)) {
 		stack;
 		pool_free(fmt->cmd->mem, mdah);
 		return NULL;
@@ -156,8 +156,7 @@ static int _raw_write_mda_header(const struct format_type *fmt,
 					     MDA_HEADER_SIZE -
 					     sizeof(mdah->checksum_xl)));

-	if (dev_write(dev, start_byte, MDA_HEADER_SIZE, mdah)
-	    != MDA_HEADER_SIZE) {
+	if (!dev_write(dev, start_byte, MDA_HEADER_SIZE, mdah)) {
 		stack;
 		pool_free(fmt->cmd->mem, mdah);
 		return 0;
@@ -178,9 +177,8 @@ static struct raw_locn *_find_vg_rlocn(struct device_area *dev_area,

 	/* FIXME Ignore if checksum incorrect!!! */
 	while (rlocn->offset) {
-		if (dev_read(dev_area->dev, dev_area->start + rlocn->offset,
-			     sizeof(vgnamebuf), vgnamebuf)
-		    != sizeof(vgnamebuf)) {
+		if (!dev_read(dev_area->dev, dev_area->start + rlocn->offset,
+			      sizeof(vgnamebuf), vgnamebuf)) {
 			stack;
 			return NULL;
 		}
@@ -214,7 +212,7 @@ static int _raw_holds_vgname(struct format_instance *fid,
 {
 	int r = 0;

-	if (!dev_open(dev_area->dev, O_RDONLY)) {
+	if (!dev_open(dev_area->dev)) {
 		stack;
 		return 0;
 	}
@@ -239,7 +237,7 @@ static struct volume_group *_vg_read_raw_area(struct format_instance *fid,
 	char *desc;
 	uint32_t wrap = 0;

-	if (!dev_open(area->dev, O_RDONLY)) {
+	if (!dev_open(area->dev)) {
 		stack;
 		return NULL;
 	}
@@ -264,8 +262,7 @@ static struct volume_group *_vg_read_raw_area(struct format_instance *fid,
 	}

 	/* FIXME 64-bit */
-	if (!(vg = text_vg_import_fd(fid, dev_name(area->dev),
-				     dev_fd(area->dev),
+	if (!(vg = text_vg_import_fd(fid, NULL, area->dev,
 				     (off_t) (area->start + rlocn->offset),
 				     (uint32_t) (rlocn->size - wrap),
 				     (off_t) (area->start + MDA_HEADER_SIZE),
@@ -274,6 +271,9 @@ static struct volume_group *_vg_read_raw_area(struct format_instance *fid,
 		stack;
 		goto out;
 	}
+	log_debug("Read %s metadata (%u) from %s at %" PRIu64 " size %" PRIu64,
+		  vg->name, vg->seqno, dev_name(area->dev),
+		  area->start + rlocn->offset, rlocn->size);

      out:
 	if (!dev_close(area->dev))
@@ -318,7 +318,7 @@ static int _vg_write_raw(struct format_instance *fid, struct volume_group *vg,
 	if (!found)
 		return 1;

-	if (!dev_open(mdac->area.dev, O_RDWR)) {
+	if (!dev_open(mdac->area.dev)) {
 		stack;
 		return 0;
 	}
@@ -367,9 +367,8 @@ static int _vg_write_raw(struct format_instance *fid, struct volume_group *vg,
 		  mdac->rlocn.offset, mdac->rlocn.size - new_wrap);

 	/* Write text out, circularly */
-	if (dev_write(mdac->area.dev, mdac->area.start + mdac->rlocn.offset,
-		      (size_t) (mdac->rlocn.size - new_wrap),
-		      buf) != mdac->rlocn.size - new_wrap) {
+	if (!dev_write(mdac->area.dev, mdac->area.start + mdac->rlocn.offset,
+		       (size_t) (mdac->rlocn.size - new_wrap), buf)) {
 		stack;
 		goto out;
 	}
@@ -379,11 +378,10 @@ static int _vg_write_raw(struct format_instance *fid, struct volume_group *vg,
 			  dev_name(mdac->area.dev), mdac->area.start +
 			  MDA_HEADER_SIZE, new_wrap);

-		if (dev_write(mdac->area.dev,
-			      mdac->area.start + MDA_HEADER_SIZE,
-			      (size_t) new_wrap,
-			      buf + mdac->rlocn.size - new_wrap)
-		    != new_wrap) {
+		if (!dev_write(mdac->area.dev,
+			       mdac->area.start + MDA_HEADER_SIZE,
+			       (size_t) new_wrap,
+			       buf + mdac->rlocn.size - new_wrap)) {
 			stack;
 			goto out;
 		}
@@ -400,7 +398,7 @@ static int _vg_write_raw(struct format_instance *fid, struct volume_group *vg,
 	r = 1;

      out:
-	if (!dev_close(mdac->area.dev))
+	if (!r && !dev_close(mdac->area.dev))
 		stack;

 	return r;
@@ -429,11 +427,6 @@ static int _vg_commit_raw(struct format_instance *fid, struct volume_group *vg,
 	if (!found)
 		return 1;

-	if (!dev_open(mdac->area.dev, O_RDWR)) {
-		stack;
-		return 0;
-	}
-
 	if (!(mdah = _raw_read_mda_header(fid->fmt, &mdac->area))) {
 		stack;
 		goto out;
@@ -466,6 +459,33 @@ static int _vg_commit_raw(struct format_instance *fid, struct volume_group *vg,
 	return r;
 }

+/* Close metadata area devices */
+static int _vg_revert_raw(struct format_instance *fid, struct volume_group *vg,
+			  struct metadata_area *mda)
+{
+	struct mda_context *mdac = (struct mda_context *) mda->metadata_locn;
+	struct physical_volume *pv;
+	struct list *pvh;
+	int found = 0;
+
+	/* Ignore any mda on a PV outside the VG. vgsplit relies on this */
+	list_iterate(pvh, &vg->pvs) {
+		pv = list_item(pvh, struct pv_list)->pv;
+		if (pv->dev == mdac->area.dev) {
+			found = 1;
+			break;
+		}
+	}
+
+	if (!found)
+		return 1;
+
+	if (!dev_close(mdac->area.dev))
+		stack;
+
+	return 1;
+}
+
 static int _vg_remove_raw(struct format_instance *fid, struct volume_group *vg,
 			  struct metadata_area *mda)
 {
@@ -474,7 +494,7 @@ static int _vg_remove_raw(struct format_instance *fid, struct volume_group *vg,
 	struct raw_locn *rlocn;
 	int r = 0;

-	if (!dev_open(mdac->area.dev, O_RDWR)) {
+	if (!dev_open(mdac->area.dev)) {
 		stack;
 		return 0;
 	}
@@ -735,7 +755,7 @@ static int _scan_file(const struct format_type *fmt)
 				fid = _create_text_instance(fmt, NULL, NULL);
 				if ((vg = _vg_read_file_name(fid, vgname,
 							     path)))
-					cache_update_vg(vg);
+					lvmcache_update_vg(vg);
 			}

 		if (closedir(d))
@@ -750,13 +770,10 @@ int vgname_from_mda(const struct format_type *fmt, struct device_area *dev_area,
 {
 	struct raw_locn *rlocn;
 	struct mda_header *mdah;
-	int already_open;
 	unsigned int len;
 	int r = 0;

-	already_open = dev_is_open(dev_area->dev);
-
-	if (!already_open && !dev_open(dev_area->dev, O_RDONLY)) {
+	if (!dev_open(dev_area->dev)) {
 		stack;
 		return 0;
 	}
@@ -769,8 +786,8 @@ int vgname_from_mda(const struct format_type *fmt, struct device_area *dev_area,
 	rlocn = mdah->raw_locns;

 	while (rlocn->offset) {
-		if (dev_read(dev_area->dev, dev_area->start + rlocn->offset,
-			     size, buf) != (signed) size) {
+		if (!dev_read(dev_area->dev, dev_area->start + rlocn->offset,
+			      size, buf)) {
 			stack;
 			goto out;
 		}
@@ -781,7 +798,7 @@ int vgname_from_mda(const struct format_type *fmt, struct device_area *dev_area,
 		buf[len] = '\0';

 		/* Ignore this entry if the characters aren't permissible */
-		if (!validate_vgname(buf)) {
+		if (!validate_name(buf)) {
 			stack;
 			goto out;
 		}
@@ -794,7 +811,7 @@ int vgname_from_mda(const struct format_type *fmt, struct device_area *dev_area,
 	}

      out:
-	if (!already_open && dev_close(dev_area->dev))
+	if (!dev_close(dev_area->dev))
 		stack;

 	return r;
@@ -821,7 +838,7 @@ static int _scan_raw(const struct format_type *fmt)
 				    sizeof(vgnamebuf))) {
 			if ((vg = _vg_read_raw_area(&fid, vgnamebuf,
 						    &rl->dev_area)))
-				cache_update_vg(vg);
+				lvmcache_update_vg(vg);
 		}
 	}

@@ -957,7 +974,7 @@ static int _pv_write(const struct format_type *fmt, struct physical_volume *pv,
 		     struct list *mdas, int64_t label_sector)
 {
 	struct label *label;
-	struct cache_info *info;
+	struct lvmcache_info *info;
 	struct mda_context *mdac;
 	struct list *mdash;
 	struct metadata_area *mda;
@@ -967,8 +984,8 @@ static int _pv_write(const struct format_type *fmt, struct physical_volume *pv,

 	/* FIXME Test mode don't update cache? */

-	if (!(info = cache_add(fmt->labeller, (char *) &pv->id, pv->dev,
-			       ORPHAN, NULL))) {
+	if (!(info = lvmcache_add(fmt->labeller, (char *) &pv->id, pv->dev,
+				  ORPHAN, NULL))) {
 		stack;
 		return 0;
 	}
@@ -1027,12 +1044,12 @@ static int _pv_write(const struct format_type *fmt, struct physical_volume *pv,
 	}
 	if (!add_da
 	    (fmt, NULL, &info->das, pv->pe_start << SECTOR_SHIFT,
-	     __UINT64_C(0))) {
+	     UINT64_C(0))) {
 		stack;
 		return 0;
 	}

-	if (!dev_open(pv->dev, O_RDWR)) {
+	if (!dev_open(pv->dev)) {
 		stack;
 		return 0;
 	}
@@ -1118,7 +1135,7 @@ static int _pv_read(const struct format_type *fmt, const char *pv_name,
 {
 	struct label *label;
 	struct device *dev;
-	struct cache_info *info;
+	struct lvmcache_info *info;
 	struct metadata_area *mda, *mda_new;
 	struct mda_context *mdac, *mdac_new;
 	struct list *mdah, *dah;
@@ -1134,7 +1151,7 @@ static int _pv_read(const struct format_type *fmt, const char *pv_name,
 		stack;
 		return 0;
 	}
-	info = (struct cache_info *) label->info;
+	info = (struct lvmcache_info *) label->info;

 	/* Have we already cached vgname? */
 	if (info->vginfo && info->vginfo->vgname && *info->vginfo->vgname &&
@@ -1144,12 +1161,15 @@ static int _pv_read(const struct format_type *fmt, const char *pv_name,
 	}

 	/* Perform full scan and try again */
-	cache_label_scan(fmt->cmd, 0);
+	if (!memlock()) {
+		lvmcache_label_scan(fmt->cmd, 1);

-	if (info->vginfo && info->vginfo->vgname && *info->vginfo->vgname &&
-	    _get_pv_from_vg(info->fmt, info->vginfo->vgname, info->dev->pvid,
-			    pv)) {
-		return 1;
+		if (info->vginfo && info->vginfo->vgname &&
+		    *info->vginfo->vgname &&
+		    _get_pv_from_vg(info->fmt, info->vginfo->vgname,
+				    info->dev->pvid, pv)) {
+			return 1;
+		}
 	}

 	/* Orphan */
@@ -1248,7 +1268,8 @@ static struct metadata_area_ops _metadata_text_raw_ops = {
 	vg_read:_vg_read_raw,
 	vg_write:_vg_write_raw,
 	vg_remove:_vg_remove_raw,
-	vg_commit:_vg_commit_raw
+	vg_commit:_vg_commit_raw,
+	vg_revert:_vg_revert_raw
 };

 /* pvmetadatasize in sectors */
@@ -1262,7 +1283,7 @@ static int _pv_setup(const struct format_type *fmt,
 	struct metadata_area *mda, *mda_new, *mda2;
 	struct mda_context *mdac, *mdac_new, *mdac2;
 	struct list *pvmdas, *pvmdash, *mdash;
-	struct cache_info *info;
+	struct lvmcache_info *info;
 	int found;
 	uint64_t pe_end = 0;

@@ -1354,7 +1375,7 @@ static struct format_instance *_create_text_instance(const struct format_type
 	struct raw_list *rl;
 	struct list *dlh, *dir_list, *rlh, *raw_list, *mdas, *mdash, *infoh;
 	char path[PATH_MAX];
-	struct cache_vginfo *vginfo;
+	struct lvmcache_vginfo *vginfo;

 	if (!(fid = pool_alloc(fmt->cmd->mem, sizeof(*fid)))) {
 		log_error("Couldn't allocate format instance object.");
@@ -1422,13 +1443,13 @@ static struct format_instance *_create_text_instance(const struct format_type
 		}

 		/* Scan PVs in VG for any further MDAs */
-		cache_label_scan(fmt->cmd, 0);
+		lvmcache_label_scan(fmt->cmd, 0);
 		if (!(vginfo = vginfo_from_vgname(vgname))) {
 			stack;
 			goto out;
 		}
 		list_iterate(infoh, &vginfo->infos) {
-			mdas = &(list_item(infoh, struct cache_info)->mdas);
+			mdas = &(list_item(infoh, struct lvmcache_info)->mdas);
 			list_iterate(mdash, mdas) {
 				mda = list_item(mdash, struct metadata_area);
 				mdac =
--- a/lib/format_text/import-export.h
+++ b/lib/format_text/import-export.h
@@ -54,7 +54,7 @@ struct volume_group *text_vg_import_file(struct format_instance *fid,
 					 time_t *when, char **desc);
 struct volume_group *text_vg_import_fd(struct format_instance *fid,
 				       const char *file,
-				       int fd,
+				       struct device *dev,
 				       off_t offset, uint32_t size,
 				       off_t offset2, uint32_t size2,
 				       checksum_fn_t checksum_fn,
--- a/lib/format_text/import.c
+++ b/lib/format_text/import.c
@@ -11,14 +11,14 @@
 #include "display.h"
 #include "hash.h"
 #include "toolcontext.h"
-#include "cache.h"
+#include "lvmcache.h"

 /* FIXME Use tidier inclusion method */
 static struct text_vg_version_ops *(_text_vsn_list[2]);

 struct volume_group *text_vg_import_fd(struct format_instance *fid,
 				       const char *file,
-				       int fd,
+				       struct device *dev,
 				       off_t offset, uint32_t size,
 				       off_t offset2, uint32_t size2,
 				       checksum_fn_t checksum_fn,
@@ -45,10 +45,9 @@ struct volume_group *text_vg_import_fd(struct format_instance *fid,
 		goto out;
 	}

-	if ((fd == -1 && !read_config_file(cf, file)) ||
-	    (fd != -1 && !read_config_fd(cf, fd, file, offset, size,
-					 offset2, size2, checksum_fn,
-					 checksum))) {
+	if ((!dev && !read_config_file(cf, file)) ||
+	    (dev && !read_config_fd(cf, dev, offset, size,
+				    offset2, size2, checksum_fn, checksum))) {
 		log_error("Couldn't read volume group metadata.");
 		goto out;
 	}
@@ -78,6 +77,6 @@ struct volume_group *text_vg_import_file(struct format_instance *fid,
 					 const char *file,
 					 time_t *when, char **desc)
 {
-	return text_vg_import_fd(fid, file, -1, 0, 0, 0, 0, NULL, 0,
+	return text_vg_import_fd(fid, file, NULL, 0, 0, 0, 0, NULL, 0,
 				 when, desc);
 }
--- a/lib/format_text/import_vsn1.c
+++ b/lib/format_text/import_vsn1.c
@@ -11,7 +11,7 @@
 #include "display.h"
 #include "hash.h"
 #include "toolcontext.h"
-#include "cache.h"
+#include "lvmcache.h"

 typedef int (*section_fn) (struct format_instance * fid, struct pool * mem,
 			   struct volume_group * vg, struct config_node * pvn,
@@ -215,15 +215,15 @@ static int _read_segment(struct pool *mem, struct volume_group *vg,
 			 struct hash_table *pv_hash)
 {
 	unsigned int s;
-	uint32_t stripes = 0;
+	uint32_t area_count = 0;
 	struct lv_segment *seg;
 	struct config_node *cn;
 	struct config_value *cv;
 	const char *seg_name = sn->key;
 	uint32_t start_extent, extent_count;
-	uint32_t chunk_size;
+	uint32_t chunk_size, extents_moved = 0u, seg_status = 0u;
 	const char *org_name, *cow_name;
-	struct logical_volume *org, *cow;
+	struct logical_volume *org, *cow, *lv1;
 	segment_type_t segtype;

 	if (!(sn = sn->child)) {
@@ -254,15 +254,33 @@ static int _read_segment(struct pool *mem, struct volume_group *vg,
 	}

 	if (segtype == SEG_STRIPED) {
-		if (!_read_int32(sn, "stripe_count", &stripes)) {
+		if (!_read_int32(sn, "stripe_count", &area_count)) {
 			log_error("Couldn't read 'stripe_count' for "
 				  "segment '%s'.", sn->key);
 			return 0;
 		}
 	}

+	if (segtype == SEG_MIRRORED) {
+		if (!_read_int32(sn, "mirror_count", &area_count)) {
+			log_error("Couldn't read 'mirror_count' for "
+				  "segment '%s'.", sn->key);
+			return 0;
+		}
+
+		if (find_config_node(sn, "extents_moved", '/')) {
+			if (_read_uint32(sn, "extents_moved", &extents_moved))
+				seg_status |= PVMOVE;
+			else {
+				log_error("Couldn't read 'extents_moved' for "
+					  "segment '%s'.", sn->key);
+				return 0;
+			}
+		}
+	}
+
 	if (!(seg = pool_zalloc(mem, sizeof(*seg) +
-				(sizeof(seg->area[0]) * stripes)))) {
+				(sizeof(seg->area[0]) * area_count)))) {
 		stack;
 		return 0;
 	}
@@ -270,9 +288,12 @@ static int _read_segment(struct pool *mem, struct volume_group *vg,
 	seg->lv = lv;
 	seg->le = start_extent;
 	seg->len = extent_count;
+	seg->area_len = extent_count;
+	seg->type = segtype;
+	seg->status = seg_status;
+	seg->extents_moved = extents_moved;

 	switch (segtype) {
-	case SEG_MIRROR:
 	case SEG_SNAPSHOT:
 		lv->status |= SNAPSHOT;

@@ -316,15 +337,7 @@ static int _read_segment(struct pool *mem, struct volume_group *vg,
 		break;

 	case SEG_STRIPED:
-		seg->stripes = stripes;
-
-		if (!seg->stripes) {
-			log_error("Zero stripes *not* allowed for segment '%s'",
-				  sn->key);
-			return 0;
-		}
-
-		if ((seg->stripes != 1) &&
+		if ((area_count != 1) &&
 		    !_read_int32(sn, "stripe_size", &seg->stripe_size)) {
 			log_error("Couldn't read stripe_size for segment '%s'.",
 				  sn->key);
@@ -337,55 +350,78 @@ static int _read_segment(struct pool *mem, struct volume_group *vg,
 			return 0;
 		}

-		for (cv = cn->v, s = 0; cv && s < seg->stripes;
+		seg->area_len /= area_count;
+
+	case SEG_MIRRORED:
+		seg->area_count = area_count;
+
+		if (!seg->area_count) {
+			log_error("Zero areas not allowed for segment '%s'",
+				  sn->key);
+			return 0;
+		}
+
+		if ((seg->type == SEG_MIRRORED) &&
+		    !(cn = find_config_node(sn, "mirrors", '/'))) {
+			log_error("Couldn't find mirrors array for segment "
+				  "'%s'.", sn->key);
+			return 0;
+		}
+
+		for (cv = cn->v, s = 0; cv && s < seg->area_count;
 		     s++, cv = cv->next) {

 			/* first we read the pv */
 			const char *bad = "Badly formed areas array for "
 			    "segment '%s'.";
 			struct physical_volume *pv;
-			uint32_t allocated;

 			if (cv->type != CFG_STRING) {
 				log_error(bad, sn->key);
 				return 0;
 			}

-			if (!(pv = hash_lookup(pv_hash, cv->v.str))) {
-				log_error("Couldn't find physical volume '%s' "
+			if (!cv->next) {
+				log_error(bad, sn->key);
+				return 0;
+			}
+
+			if (cv->next->type != CFG_INT) {
+				log_error(bad, sn->key);
+				return 0;
+			}
+
+			/* FIXME Cope if LV not yet read in */
+			if ((pv = hash_lookup(pv_hash, cv->v.str))) {
+				seg->area[s].type = AREA_PV;
+				seg->area[s].u.pv.pv = pv;
+				seg->area[s].u.pv.pe = cv->next->v.i;
+				/*
+				 * Adjust extent counts in the pv and vg.
+				 */
+				pv->pe_alloc_count += seg->area_len;
+				vg->free_count -= seg->area_len;
+
+			} else if ((lv1 = find_lv(vg, cv->v.str))) {
+				seg->area[s].type = AREA_LV;
+				seg->area[s].u.lv.lv = lv1;
+				seg->area[s].u.lv.le = cv->next->v.i;
+			} else {
+				log_error("Couldn't find volume '%s' "
 					  "for segment '%s'.",
 					  cv->v.str ? cv->v.str : "NULL",
 					  seg_name);
 				return 0;
 			}

-			seg->area[s].pv = pv;
-
-			if (!(cv = cv->next)) {
-				log_error(bad, sn->key);
-				return 0;
-			}
-
-			if (cv->type != CFG_INT) {
-				log_error(bad, sn->key);
-				return 0;
-			}
-
-			seg->area[s].pe = cv->v.i;
-
-			/*
-			   * Adjust the extent counts in the pv and vg.
-			 */
-			allocated = seg->len / seg->stripes;
-			pv->pe_alloc_count += allocated;
-			vg->free_count -= allocated;
+			cv = cv->next;
 		}

 		/*
 		 * Check we read the correct number of stripes.
 		 */
-		if (cv || (s < seg->stripes)) {
-			log_error("Incorrect number of stripes in 'area' array "
+		if (cv || (s < seg->area_count)) {
+			log_error("Incorrect number of areas in area array "
 				  "for segment '%s'.", seg_name);
 			return 0;
 		}
@@ -456,9 +492,9 @@ static int _read_segments(struct pool *mem, struct volume_group *vg,
 	return 1;
 }

-static int _read_lv(struct format_instance *fid, struct pool *mem,
-		    struct volume_group *vg, struct config_node *lvn,
-		    struct config_node *vgn, struct hash_table *pv_hash)
+static int _read_lvnames(struct format_instance *fid, struct pool *mem,
+			 struct volume_group *vg, struct config_node *lvn,
+			 struct config_node *vgn, struct hash_table *pv_hash)
 {
 	struct logical_volume *lv;
 	struct lv_list *lvl;
@@ -482,17 +518,6 @@ static int _read_lv(struct format_instance *fid, struct pool *mem,
 		return 0;
 	}

-	lv->vg = vg;
-
-	/* FIXME: read full lvid */
-	if (!_read_id(&lv->lvid.id[1], lvn, "id")) {
-		log_error("Couldn't read uuid for logical volume %s.",
-			  lv->name);
-		return 0;
-	}
-
-	memcpy(&lv->lvid.id[0], &lv->vg->id, sizeof(lv->lvid.id[0]));
-
 	if (!(cn = find_config_node(lvn, "status", '/'))) {
 		log_error("Couldn't find status flags for logical volume.");
 		return 0;
@@ -503,12 +528,6 @@ static int _read_lv(struct format_instance *fid, struct pool *mem,
 		return 0;
 	}

-	list_init(&lv->segments);
-	if (!_read_segments(mem, vg, lv, lvn, pv_hash)) {
-		stack;
-		return 0;
-	}
-
 	lv->alloc = ALLOC_DEFAULT;
 	if ((cn = find_config_node(lvn, "allocation_policy", '/'))) {
 		struct config_value *cv = cn->v;
@@ -524,6 +543,48 @@ static int _read_lv(struct format_instance *fid, struct pool *mem,
 	if (!_read_int32(lvn, "read_ahead", &lv->read_ahead))
 		lv->read_ahead = 0;

+	list_init(&lv->segments);
+
+	lv->vg = vg;
+	vg->lv_count++;
+	list_add(&vg->lvs, &lvl->list);
+
+	return 1;
+}
+
+static int _read_lvsegs(struct format_instance *fid, struct pool *mem,
+			struct volume_group *vg, struct config_node *lvn,
+			struct config_node *vgn, struct hash_table *pv_hash)
+{
+	struct logical_volume *lv;
+	struct lv_list *lvl;
+
+	if (!(lvl = find_lv_in_vg(vg, lvn->key))) {
+		log_error("Lost logical volume reference %s", lvn->key);
+		return 0;
+	}
+
+	lv = lvl->lv;
+
+	if (!(lvn = lvn->child)) {
+		log_error("Empty logical volume section.");
+		return 0;
+	}
+
+	/* FIXME: read full lvid */
+	if (!_read_id(&lv->lvid.id[1], lvn, "id")) {
+		log_error("Couldn't read uuid for logical volume %s.",
+			  lv->name);
+		return 0;
+	}
+
+	memcpy(&lv->lvid.id[0], &lv->vg->id, sizeof(lv->lvid.id[0]));
+
+	if (!_read_segments(mem, vg, lv, lvn, pv_hash)) {
+		stack;
+		return 0;
+	}
+
 	lv->size = (uint64_t) lv->le_count * (uint64_t) vg->extent_size;

 	/* Skip this for now for snapshots */
@@ -532,12 +593,18 @@ static int _read_lv(struct format_instance *fid, struct pool *mem,
 		if ((lv->status & FIXED_MINOR) &&
 		    !_read_int32(lvn, "minor", &lv->minor)) {
 			log_error("Couldn't read minor number for logical "
-				  "volume.");
+				  "volume %s.", lv->name);
 			return 0;
 		}
-
-		vg->lv_count++;
-		list_add(&vg->lvs, &lvl->list);
+		lv->major = -1;
+		if ((lv->status & FIXED_MINOR) &&
+		    !_read_int32(lvn, "major", &lv->major)) {
+			log_error("Couldn't read major number for logical "
+				  "volume %s.", lv->name);
+		}
+	} else {
+		vg->lv_count--;
+		list_del(&lvl->list);
 	}

 	return 1;
@@ -681,13 +748,21 @@ static struct volume_group *_read_vg(struct format_instance *fid,

 	list_init(&vg->lvs);
 	list_init(&vg->snapshots);
-	if (!_read_sections(fid, "logical_volumes", _read_lv, mem, vg,
+
+	if (!_read_sections(fid, "logical_volumes", _read_lvnames, mem, vg,
 			    vgn, pv_hash, 1)) {
-		log_error("Couldn't read all logical volumes for volume "
+		log_error("Couldn't read all logical volume names for volume "
 			  "group %s.", vg->name);
 		goto bad;
 	}

+	if (!_read_sections(fid, "logical_volumes", _read_lvsegs, mem, vg,
+			    vgn, pv_hash, 1)) {
+		log_error("Couldn't read all logical volumes for "
+			  "volume group %s.", vg->name);
+		goto bad;
+	}
+
 	hash_destroy(pv_hash);

 	if (vg->status & PARTIAL_VG) {
--- a/lib/format_text/text_label.c
+++ b/lib/format_text/text_label.c
@@ -27,7 +27,7 @@ static int _write(struct label *label, char *buf)
 {
 	struct label_header *lh = (struct label_header *) buf;
 	struct pv_header *pvhdr;
-	struct cache_info *info;
+	struct lvmcache_info *info;
 	struct disk_locn *pvh_dlocn_xl;
 	struct list *mdash, *dash;
 	struct metadata_area *mda;
@@ -40,7 +40,7 @@ static int _write(struct label *label, char *buf)
 	strncpy(lh->type, label->type, sizeof(label->type));

 	pvhdr = (struct pv_header *) ((void *) buf + xlate32(lh->offset_xl));
-	info = (struct cache_info *) label->info;
+	info = (struct lvmcache_info *) label->info;
 	pvhdr->device_size_xl = xlate64(info->device_size);
 	memcpy(pvhdr->pv_uuid, &info->dev->pvid, sizeof(struct id));

@@ -185,7 +185,7 @@ static int _read(struct labeller *l, struct device *dev, char *buf,
 {
 	struct label_header *lh = (struct label_header *) buf;
 	struct pv_header *pvhdr;
-	struct cache_info *info;
+	struct lvmcache_info *info;
 	struct disk_locn *dlocn_xl;
 	uint64_t offset;
 	struct list *mdah;
@@ -195,7 +195,7 @@ static int _read(struct labeller *l, struct device *dev, char *buf,

 	pvhdr = (struct pv_header *) ((void *) buf + xlate32(lh->offset_xl));

-	if (!(info = cache_add(l, pvhdr->pv_uuid, dev, NULL, NULL)))
+	if (!(info = lvmcache_add(l, pvhdr->pv_uuid, dev, NULL, NULL)))
 		return 0;
 	*label = info->label;

@@ -230,7 +230,7 @@ static int _read(struct labeller *l, struct device *dev, char *buf,
 		mdac = (struct mda_context *) mda->metadata_locn;
 		if (vgname_from_mda(info->fmt, &mdac->area, vgnamebuf,
 				    sizeof(vgnamebuf))) {
-			cache_update_vgname(info, vgnamebuf);
+			lvmcache_update_vgname(info, vgnamebuf);
 		}
 	}

@@ -241,7 +241,7 @@ static int _read(struct labeller *l, struct device *dev, char *buf,

 static void _destroy_label(struct labeller *l, struct label *label)
 {
-	struct cache_info *info = (struct cache_info *) label->info;
+	struct lvmcache_info *info = (struct lvmcache_info *) label->info;

 	if (info->mdas.n)
 		del_mdas(&info->mdas);
--- a/lib/label/label.c
+++ b/lib/label/label.c
@@ -9,7 +9,7 @@
 #include "list.h"
 #include "crc.h"
 #include "xlate.h"
-#include "cache.h"
+#include "lvmcache.h"

 #include <sys/stat.h>
 #include <fcntl.h>
@@ -104,21 +104,17 @@ static struct labeller *_find_labeller(struct device *dev, char *buf,
 	struct list *lih;
 	struct labeller_i *li;
 	struct labeller *r = NULL;
-	int already_open;
 	struct label_header *lh;
 	uint64_t sector;
 	int found = 0;
 	char readbuf[LABEL_SCAN_SIZE];

-	already_open = dev_is_open(dev);
-
-	if (!already_open && !dev_open(dev, O_RDONLY)) {
+	if (!dev_open(dev)) {
 		stack;
 		return NULL;
 	}

-	if (dev_read(dev, __UINT64_C(0), LABEL_SCAN_SIZE, readbuf) !=
-	    LABEL_SCAN_SIZE) {
+	if (!dev_read(dev, UINT64_C(0), LABEL_SCAN_SIZE, readbuf)) {
 		log_debug("%s: Failed to read label area", dev_name(dev));
 		goto out;
 	}
@@ -178,7 +174,7 @@ static struct labeller *_find_labeller(struct device *dev, char *buf,
 		log_very_verbose("%s: No label detected", dev_name(dev));

      out:
-	if (!already_open && !dev_close(dev))
+	if (!dev_close(dev))
 		stack;

 	return r;
@@ -200,13 +196,18 @@ int label_remove(struct device *dev)

 	log_very_verbose("Scanning for labels to wipe from %s", dev_name(dev));

-	if (!dev_open(dev, O_RDWR)) {
+	if (!dev_open(dev)) {
 		stack;
 		return 0;
 	}

-	if (dev_read(dev, __UINT64_C(0), LABEL_SCAN_SIZE, readbuf) !=
-	    LABEL_SCAN_SIZE) {
+	/*
+	 * We flush the device just in case someone is stupid
+	 * enough to be trying to import an open pv into lvm.
+	 */
+	dev_flush(dev);
+
+	if (!dev_read(dev, UINT64_C(0), LABEL_SCAN_SIZE, readbuf)) {
 		log_debug("%s: Failed to read label area", dev_name(dev));
 		goto out;
 	}
@@ -236,8 +237,8 @@ int label_remove(struct device *dev)
 		if (wipe) {
 			log_info("%s: Wiping label at sector %" PRIu64,
 				 dev_name(dev), sector);
-			if (dev_write(dev, sector << SECTOR_SHIFT, LABEL_SIZE,
-				      buf) != LABEL_SIZE) {
+			if (!dev_write(dev, sector << SECTOR_SHIFT, LABEL_SIZE,
+				       buf)) {
 				log_error("Failed to remove label from %s at "
 					  "sector %" PRIu64, dev_name(dev),
 					  sector);
@@ -278,7 +279,6 @@ int label_write(struct device *dev, struct label *label)
 	char buf[LABEL_SIZE];
 	struct label_header *lh = (struct label_header *) buf;
 	int r = 1;
-	int already_open;

 	if ((LABEL_SIZE + (label->sector << SECTOR_SHIFT)) > LABEL_SCAN_SIZE) {
 		log_error("Label sector %" PRIu64 " beyond range (%ld)",
@@ -298,21 +298,19 @@ int label_write(struct device *dev, struct label *label)
 	lh->crc_xl = xlate32(calc_crc(INITIAL_CRC, &lh->offset_xl, LABEL_SIZE -
 				      ((void *) &lh->offset_xl - (void *) lh)));

-	already_open = dev_is_open(dev);
-	if (!already_open && dev_open(dev, O_RDWR)) {
+	if (!dev_open(dev)) {
 		stack;
 		return 0;
 	}

 	log_info("%s: Writing label to sector %" PRIu64, dev_name(dev),
 		 label->sector);
-	if (dev_write(dev, label->sector << SECTOR_SHIFT, LABEL_SIZE, buf) !=
-	    LABEL_SIZE) {
+	if (!dev_write(dev, label->sector << SECTOR_SHIFT, LABEL_SIZE, buf)) {
 		log_debug("Failed to write label to %s", dev_name(dev));
 		r = 0;
 	}

-	if (!already_open && dev_close(dev))
+	if (!dev_close(dev))
 		stack;

 	return r;
--- a/lib/label/label.h
+++ b/lib/label/label.h
@@ -7,8 +7,7 @@
 #ifndef _LVM_LABEL_H
 #define _LVM_LABEL_H

-#include "cache.h"
-#include "lvm-types.h"
+#include "lvmcache.h"
 #include "uuid.h"
 #include "device.h"

--- a/lib/locking/external_locking.c
+++ b/lib/locking/external_locking.c
@@ -10,8 +10,6 @@
 #include "defaults.h"
 #include "sharedlib.h"

-#include <dlfcn.h>
-
 static void *_locking_lib = NULL;
 static void (*_end_fn) (void) = NULL;
 static int (*_lock_fn) (struct cmd_context * cmd, const char *resource,
--- a/lib/locking/file_locking.c
+++ b/lib/locking/file_locking.c
@@ -13,6 +13,7 @@
 #include "defaults.h"
 #include "lvm-file.h"
 #include "lvm-string.h"
+#include "lvmcache.h"

 #include <limits.h>
 #include <unistd.h>
@@ -34,7 +35,7 @@ static sig_t _oldhandler;
 static sigset_t _fullsigset, _intsigset;
 static int _handler_installed;

-static int _release_lock(const char *file)
+static int _release_lock(const char *file, int unlock)
 {
 	struct lock_list *ll;
 	struct list *llh, *llt;
@@ -46,10 +47,11 @@ static int _release_lock(const char *file)

 		if (!file || !strcmp(ll->res, file)) {
 			list_del(llh);
-			log_very_verbose("Unlocking %s", ll->res);
-
-			if (flock(ll->lf, LOCK_NB | LOCK_UN))
-				log_sys_error("flock", ll->res);
+			if (unlock) {
+				log_very_verbose("Unlocking %s", ll->res);
+				if (flock(ll->lf, LOCK_NB | LOCK_UN))
+					log_sys_error("flock", ll->res);
+			}

 			if (!flock(ll->lf, LOCK_NB | LOCK_EX) &&
 			    !stat(ll->res, &buf1) &&
@@ -74,7 +76,12 @@ static int _release_lock(const char *file)

 static void _fin_file_locking(void)
 {
-	_release_lock(NULL);
+	_release_lock(NULL, 1);
+}
+
+static void _reset_file_locking(void)
+{
+	_release_lock(NULL, 0);
 }

 static void _remove_ctrl_c_handler()
@@ -127,7 +134,7 @@ static int _lock_file(const char *file, int flags)
 		state = 'W';
 		break;
 	case LCK_UNLOCK:
-		return _release_lock(file);
+		return _release_lock(file, 1);
 	default:
 		log_error("Unrecognised lock type: %d", flags & LCK_TYPE_MASK);
 		return 0;
@@ -196,24 +203,39 @@ static int _file_lock_resource(struct cmd_context *cmd, const char *resource,
 		else
 			lvm_snprintf(lockfile, sizeof(lockfile),
 				     "%s/V_%s", _lock_dir, resource);
+
 		if (!_lock_file(lockfile, flags))
 			return 0;
+
+		switch (flags & LCK_TYPE_MASK) {
+		case LCK_UNLOCK:
+			lvmcache_unlock_vgname(resource);
+			break;
+		default:
+			lvmcache_lock_vgname(resource,
+					     (flags & LCK_TYPE_MASK) ==
+					     LCK_READ);
+		}
 		break;
 	case LCK_LV:
 		switch (flags & LCK_TYPE_MASK) {
 		case LCK_UNLOCK:
+			log_debug("Unlocking LV %s", resource);
 			if (!lv_resume_if_active(cmd, resource))
 				return 0;
 			break;
 		case LCK_READ:
+			log_debug("Locking LV %s (R)", resource);
 			if (!lv_activate(cmd, resource))
 				return 0;
 			break;
 		case LCK_WRITE:
+			log_debug("Locking LV %s (W)", resource);
 			if (!lv_suspend_if_active(cmd, resource))
 				return 0;
 			break;
 		case LCK_EXCL:
+			log_debug("Locking LV %s (EX)", resource);
 			if (!lv_deactivate(cmd, resource))
 				return 0;
 			break;
@@ -233,6 +255,7 @@ static int _file_lock_resource(struct cmd_context *cmd, const char *resource,
 int init_file_locking(struct locking_type *locking, struct config_tree *cf)
 {
 	locking->lock_resource = _file_lock_resource;
+	locking->reset_locking = _reset_file_locking;
 	locking->fin_locking = _fin_file_locking;

 	/* Get lockfile directory from config file */
--- a/lib/locking/locking.c
+++ b/lib/locking/locking.c
@@ -14,30 +14,19 @@

 #include <signal.h>
 #include <sys/stat.h>
-#include <sys/mman.h>
 #include <limits.h>
+#include <unistd.h>

 static struct locking_type _locking;
 static sigset_t _oldset;

 static int _lock_count = 0;	/* Number of locks held */
-static int _write_lock_held = 0;
 static int _signals_blocked = 0;

 static void _block_signals(int flags)
 {
 	sigset_t set;

-	if (!_write_lock_held && (flags & LCK_SCOPE_MASK) == LCK_LV &&
-	    (flags & LCK_TYPE_MASK) == LCK_WRITE) {
-		if (mlockall(MCL_CURRENT | MCL_FUTURE))
-			log_sys_error("mlockall", "");
-		else {
-			log_very_verbose("Locking memory");
-			_write_lock_held = 1;
-		}
-	}
-
 	if (_signals_blocked)
 		return;

@@ -58,15 +47,6 @@ static void _block_signals(int flags)

 static void _unblock_signals(void)
 {
-	if (!_lock_count && _write_lock_held) {
-		if (munlockall()) {
-			log_very_verbose("Unlocking memory");
-			log_sys_error("munlockall", "");
-		}
-
-		_write_lock_held = 0;
-	}
-
 	/* Don't unblock signals while any locks are held */
 	if (!_signals_blocked || _lock_count)
 		return;
@@ -81,6 +61,18 @@ static void _unblock_signals(void)
 	return;
 }

+void reset_locking(void)
+{
+	int was_locked = _lock_count;
+
+	_lock_count = 0;
+
+	_locking.reset_locking();
+
+	if (was_locked)
+		_unblock_signals();
+}
+
 static inline void _update_lock_count(int flags)
 {
 	if ((flags & LCK_TYPE_MASK) == LCK_UNLOCK)
@@ -107,11 +99,13 @@ int init_locking(int type, struct config_tree *cf)
 		log_very_verbose("File-based locking enabled.");
 		return 1;

+#ifdef HAVE_LIBDL
 	case 2:
 		if (!init_external_locking(&_locking, cf))
 			break;
 		log_very_verbose("External locking enabled.");
 		return 1;
+#endif

 	default:
 		log_error("Unknown locking type requested.");
--- a/lib/locking/locking.h
+++ b/lib/locking/locking.h
@@ -11,6 +11,7 @@

 int init_locking(int type, struct config_tree *cf);
 void fin_locking(void);
+void reset_locking(void);

 /*
 * LCK_VG:
--- a/lib/locking/locking_types.h
+++ b/lib/locking/locking_types.h
@@ -12,10 +12,12 @@ typedef int (*lock_resource_fn) (struct cmd_context * cmd, const char *resource,
 				 int flags);

 typedef void (*fin_lock_fn) (void);
+typedef void (*reset_lock_fn) (void);

 struct locking_type {
 	lock_resource_fn lock_resource;

+	reset_lock_fn reset_locking;
 	fin_lock_fn fin_locking;
 };

--- a/lib/locking/no_locking.c
+++ b/lib/locking/no_locking.c
@@ -10,6 +10,7 @@
 #include "locking_types.h"
 #include "lvm-string.h"
 #include "activate.h"
+#include "lvmcache.h"

 #include <signal.h>

@@ -22,11 +23,25 @@ static void _no_fin_locking(void)
 	return;
 }

+static void _no_reset_locking(void)
+{
+	return;
+}
+
 static int _no_lock_resource(struct cmd_context *cmd, const char *resource,
 			     int flags)
 {
 	switch (flags & LCK_SCOPE_MASK) {
 	case LCK_VG:
+		switch (flags & LCK_TYPE_MASK) {
+		case LCK_UNLOCK:
+			lvmcache_unlock_vgname(resource);
+			break;
+		default:
+			lvmcache_lock_vgname(resource,
+					     (flags & LCK_TYPE_MASK) ==
+					     LCK_READ);
+		}
 		break;
 	case LCK_LV:
 		switch (flags & LCK_TYPE_MASK) {
@@ -54,6 +69,7 @@ static int _no_lock_resource(struct cmd_context *cmd, const char *resource,
 int init_no_locking(struct locking_type *locking, struct config_tree *cf)
 {
 	locking->lock_resource = _no_lock_resource;
+	locking->reset_locking = _no_reset_locking;
 	locking->fin_locking = _no_fin_locking;

 	return 1;
--- a/lib/log/log.c
+++ b/lib/log/log.c
@@ -5,27 +5,62 @@
 */

 #include "lib.h"
+#include "device.h"
+#include "memlock.h"
+#include "lvm-string.h"

 #include <stdarg.h>
 #include <syslog.h>

-static FILE *_log = 0;
+static FILE *_log_file;
+static struct device _log_dev;
+static struct str_list _log_dev_alias;

 static int _verbose_level = 0;
 static int _test = 0;
 static int _partial = 0;
+static int _pvmove = 0;
 static int _debug_level = 0;
 static int _syslog = 0;
+static int _log_to_file = 0;
+static int _log_direct = 0;
+static int _log_while_suspended = 0;
 static int _indent = 1;
 static int _log_cmd_name = 0;
 static int _log_suppress = 0;
 static int _ignorelockingfailure = 0;
 static char _cmd_name[30] = "";
 static char _msg_prefix[30] = "  ";
+static int _already_logging = 0;

-void init_log(FILE *fp)
+void init_log_file(const char *log_file, int append)
 {
-	_log = fp;
+	const char *open_mode = append ? "a" : "w";
+
+	if (!(_log_file = fopen(log_file, open_mode))) {
+		log_sys_error("fopen", log_file);
+		return;
+	}
+
+	_log_to_file = 1;
+}
+
+void init_log_direct(const char *log_file, int append)
+{
+	const char *filename;
+	int open_flags = append ? 0 : O_TRUNC;
+
+	filename = dbg_strdup(log_file);
+	dev_create_file(filename, &_log_dev, &_log_dev_alias);
+	if (!dev_open_flags(&_log_dev, O_RDWR | O_CREAT | open_flags, 1, 0))
+		return;
+
+	_log_direct = 1;
+}
+
+void init_log_while_suspended(int log_while_suspended)
+{
+	_log_while_suspended = log_while_suspended;
 }

 void init_syslog(int facility)
@@ -39,9 +74,23 @@ void log_suppress(int suppress)
 	_log_suppress = suppress;
 }

-void fin_log()
+void release_log_memory(void)
 {
-	_log = 0;
+	dbg_free((char *) _log_dev_alias.str);
+	_log_dev_alias.str = "activate_log file";
+}
+
+void fin_log(void)
+{
+	if (_log_direct) {
+		dev_close(&_log_dev);
+		_log_direct = 0;
+	}
+
+	if (_log_to_file) {
+		fclose(_log_file);
+		_log_to_file = 0;
+	}
 }

 void fin_syslog()
@@ -68,6 +117,11 @@ void init_partial(int level)
 	_partial = level;
 }

+void init_pvmove(int level)
+{
+	_pvmove = level;
+}
+
 void init_ignorelockingfailure(int level)
 {
 	_ignorelockingfailure = level;
@@ -107,6 +161,11 @@ int partial_mode()
 	return _partial;
 }

+int pvmove_mode()
+{
+	return _pvmove;
+}
+
 int ignorelockingfailure()
 {
 	return _ignorelockingfailure;
@@ -125,6 +184,8 @@ int debug_level()
 void print_log(int level, const char *file, int line, const char *format, ...)
 {
 	va_list ap;
+	char buf[1024];
+	int bufused, n;

 	if (!_log_suppress) {
 		va_start(ap, format);
@@ -183,20 +244,48 @@ void print_log(int level, const char *file, int line, const char *format, ...)
 	if (level > _debug_level)
 		return;

-	if (_log) {
-		fprintf(_log, "%s:%d %s%s", file, line, _cmd_name, _msg_prefix);
+	if (_log_to_file && (_log_while_suspended || !memlock())) {
+		fprintf(_log_file, "%s:%d %s%s", file, line, _cmd_name,
+			_msg_prefix);

 		va_start(ap, format);
-		vfprintf(_log, format, ap);
+		vfprintf(_log_file, format, ap);
 		va_end(ap);

-		fprintf(_log, "\n");
-		fflush(_log);
+		fprintf(_log_file, "\n");
+		fflush(_log_file);
 	}

-	if (_syslog) {
+	if (_syslog && (_log_while_suspended || !memlock())) {
 		va_start(ap, format);
 		vsyslog(level, format, ap);
 		va_end(ap);
 	}
+
+	/* FIXME This code is unfinished - pre-extend & condense. */
+	if (!_already_logging && _log_direct && memlock()) {
+		_already_logging = 1;
+		memset(&buf, ' ', sizeof(buf));
+		bufused = 0;
+		if ((n = lvm_snprintf(buf, sizeof(buf) - bufused - 1,
+				      "%s:%d %s%s", file, line, _cmd_name,
+				      _msg_prefix)) == -1)
+			goto done;
+
+		bufused += n;
+
+		va_start(ap, format);
+		n = vsnprintf(buf + bufused - 1, sizeof(buf) - bufused - 1,
+			      format, ap);
+		va_end(ap);
+		bufused += n;
+
+	      done:
+		buf[bufused - 1] = '\n';
+		buf[bufused] = '\n';
+		buf[sizeof(buf) - 1] = '\n';
+		/* FIXME real size bufused */
+		dev_append(&_log_dev, sizeof(buf), buf);
+		_already_logging = 0;
+	}
 }
--- a/lib/log/log.h
+++ b/lib/log/log.h
@@ -39,8 +39,11 @@
 #define _LOG_ERR 3
 #define _LOG_FATAL 2

-void init_log(FILE *fp);
+void init_log_file(const char *log_file, int append);
+void init_log_direct(const char *log_file, int append);
+void init_log_while_suspended(int log_while_suspended);
 void fin_log(void);
+void release_log_memory(void);

 void init_syslog(int facility);
 void fin_syslog(void);
@@ -48,6 +51,7 @@ void fin_syslog(void);
 void init_verbose(int level);
 void init_test(int level);
 void init_partial(int level);
+void init_pvmove(int level);
 void init_debug(int level);
 void init_cmd_name(int status);
 void init_msg_prefix(const char *prefix);
@@ -58,12 +62,16 @@ void set_cmd_name(const char *cmd_name);

 int test_mode(void);
 int partial_mode(void);
+int pvmove_mode(void);
 int debug_level(void);
 int ignorelockingfailure(void);

 /* Suppress messages to stdout/stderr */
 void log_suppress(int suppress);

+/* Suppress messages to syslog */
+void syslog_suppress(int suppress);
+
 void print_log(int level, const char *file, int line, const char *format, ...)
    __attribute__ ((format(printf, 4, 5)));

@@ -78,15 +86,17 @@ void print_log(int level, const char *file, int line, const char *format, ...)

 #define stack log_debug("<backtrace>")	/* Backtrace on error */

-#define log_error(fmt, args...) log_err(fmt , ## args)
-#define log_print(fmt, args...) log_warn(fmt , ## args)
-#define log_verbose(fmt, args...) log_notice(fmt , ## args)
-#define log_very_verbose(fmt, args...) log_info(fmt , ## args)
+#define log_error(args...) log_err(args)
+#define log_print(args...) log_warn(args)
+#define log_verbose(args...) log_notice(args)
+#define log_very_verbose(args...) log_info(args)

 /* Two System call equivalents */
 #define log_sys_error(x, y) \
 		log_err("%s: %s failed: %s", y, x, strerror(errno))
 #define log_sys_very_verbose(x, y) \
 		log_info("%s: %s failed: %s", y, x, strerror(errno))
+#define log_sys_debug(x, y) \
+		log_debug("%s: %s failed: %s", y, x, strerror(errno))

 #endif
--- a/lib/metadata/lv_manip.c
+++ b/lib/metadata/lv_manip.c
@@ -6,6 +6,7 @@

 #include "lib.h"
 #include "metadata.h"
+#include "locking.h"
 #include "pv_map.h"
 #include "lvm-string.h"
 #include "toolcontext.h"
@@ -19,9 +20,12 @@ static void _get_extents(struct lv_segment *seg)
 	unsigned int s, count;
 	struct physical_volume *pv;

-	for (s = 0; s < seg->stripes; s++) {
-		pv = seg->area[s].pv;
-		count = seg->len / seg->stripes;
+	for (s = 0; s < seg->area_count; s++) {
+		if (seg->area[s].type != AREA_PV)
+			continue;
+
+		pv = seg->area[s].u.pv.pv;
+		count = seg->area_len;
 		pv->pe_alloc_count += count;
 	}
 }
@@ -31,12 +35,17 @@ static void _put_extents(struct lv_segment *seg)
 	unsigned int s, count;
 	struct physical_volume *pv;

-	for (s = 0; s < seg->stripes; s++) {
-		pv = seg->area[s].pv;
-		count = seg->len / seg->stripes;
+	for (s = 0; s < seg->area_count; s++) {
+		if (seg->area[s].type != AREA_PV)
+			continue;

-		assert(pv->pe_alloc_count >= count);
-		pv->pe_alloc_count -= count;
+		pv = seg->area[s].u.pv.pv;
+
+		if (pv) {
+			count = seg->area_len;
+			assert(pv->pe_alloc_count >= count);
+			pv->pe_alloc_count -= count;
+		}
 	}
 }

@@ -58,13 +67,13 @@ static int _alloc_stripe_area(struct logical_volume *lv, uint32_t stripes,
 			      struct pv_area **areas, uint32_t *ix)
 {
 	uint32_t count = lv->le_count - *ix;
-	uint32_t per_area = count / stripes;
+	uint32_t area_len = count / stripes;
 	uint32_t smallest = areas[stripes - 1]->count;
 	uint32_t s;
 	struct lv_segment *seg;

-	if (smallest < per_area)
-		per_area = smallest;
+	if (smallest < area_len)
+		area_len = smallest;

 	if (!(seg = _alloc_segment(lv->vg->cmd->mem, stripes))) {
 		log_err("Couldn't allocate new stripe segment.");
@@ -74,15 +83,17 @@ static int _alloc_stripe_area(struct logical_volume *lv, uint32_t stripes,
 	seg->lv = lv;
 	seg->type = SEG_STRIPED;
 	seg->le = *ix;
-	seg->len = per_area * stripes;
-	seg->stripes = stripes;
+	seg->len = area_len * stripes;
+	seg->area_len = area_len;
+	seg->area_count = stripes;
 	seg->stripe_size = stripe_size;

 	for (s = 0; s < stripes; s++) {
 		struct pv_area *pva = areas[s];
-		seg->area[s].pv = pva->map->pv;
-		seg->area[s].pe = pva->start;
-		consume_pv_area(pva, per_area);
+		seg->area[s].type = AREA_PV;
+		seg->area[s].u.pv.pv = pva->map->pvl->pv;
+		seg->area[s].u.pv.pe = pva->start;
+		consume_pv_area(pva, area_len);
 	}

 	list_add(&lv->segments, &seg->list);
@@ -186,10 +197,12 @@ static int _alloc_linear_area(struct logical_volume *lv, uint32_t *ix,
 	seg->type = SEG_STRIPED;
 	seg->le = *ix;
 	seg->len = count;
+	seg->area_len = count;
 	seg->stripe_size = 0;
-	seg->stripes = 1;
-	seg->area[0].pv = map->pv;
-	seg->area[0].pe = pva->start;
+	seg->area_count = 1;
+	seg->area[0].type = AREA_PV;
+	seg->area[0].u.pv.pv = map->pvl->pv;
+	seg->area[0].u.pv.pe = pva->start;

 	list_add(&lv->segments, &seg->list);

@@ -198,6 +211,47 @@ static int _alloc_linear_area(struct logical_volume *lv, uint32_t *ix,
 	return 1;
 }

+static int _alloc_mirrored_area(struct logical_volume *lv, uint32_t *ix,
+				struct pv_map *map, struct pv_area *pva,
+				struct physical_volume *mirrored_pv,
+				uint32_t mirrored_pe)
+{
+	uint32_t count, remaining;
+	struct lv_segment *seg;
+
+	count = pva->count;
+	remaining = lv->le_count - *ix;
+	if (count > remaining)
+		count = remaining;
+
+	if (!(seg = _alloc_segment(lv->vg->cmd->mem, 2))) {
+		log_err("Couldn't allocate new mirrored segment.");
+		return 0;
+	}
+
+	seg->lv = lv;
+	seg->type = SEG_MIRRORED;
+	seg->status = 0u;
+	seg->le = *ix;
+	seg->len = count;
+	seg->area_len = count;
+	seg->stripe_size = 0;
+	seg->area_count = 2;
+	seg->extents_moved = 0u;
+	/* FIXME Remove AREA_PV restriction here? */
+	seg->area[0].type = AREA_PV;
+	seg->area[0].u.pv.pv = mirrored_pv;
+	seg->area[0].u.pv.pe = mirrored_pe;
+	seg->area[1].type = AREA_PV;
+	seg->area[1].u.pv.pv = map->pvl->pv;
+	seg->area[1].u.pv.pe = pva->start;
+	list_add(&lv->segments, &seg->list);
+
+	consume_pv_area(pva, count);
+	*ix += count;
+	return 1;
+}
+
 /*
 * Only one area per pv is allowed, so we search
 * for the biggest area, or the first area that
@@ -222,14 +276,15 @@ static int _alloc_contiguous(struct logical_volume *lv,

 		/* first item in the list is the biggest */
 		pva = list_item(pvm->areas.n, struct pv_area);
+		if (pva->count < lv->le_count)
+			continue;

 		if (!_alloc_linear_area(lv, &allocated, pvm, pva)) {
 			stack;
 			return 0;
 		}

-		if (allocated == lv->le_count)
-			break;
+		break;
 	}

 	if (allocated != lv->le_count) {
@@ -242,6 +297,50 @@ static int _alloc_contiguous(struct logical_volume *lv,
 	return 1;
 }

+/* FIXME Contiguous depends on *segment* (i.e. stripe) not LV */
+static int _alloc_mirrored(struct logical_volume *lv,
+			   struct list *pvms, uint32_t allocated,
+			   struct physical_volume *mirrored_pv,
+			   uint32_t mirrored_pe)
+{
+	struct list *tmp1;
+	struct pv_map *pvm;
+	struct pv_area *pva;
+	uint32_t max_found = 0;
+
+	/* Try each PV in turn */
+	list_iterate(tmp1, pvms) {
+		pvm = list_item(tmp1, struct pv_map);
+
+		if (list_empty(&pvm->areas))
+			continue;
+
+		/* first item in the list is the biggest */
+		pva = list_item(pvm->areas.n, struct pv_area);
+		if (pva->count < lv->le_count - allocated) {
+			max_found = pva->count;
+			continue;
+		}
+
+		if (!_alloc_mirrored_area(lv, &allocated, pvm, pva,
+					  mirrored_pv, mirrored_pe)) {
+			stack;
+			return 0;
+		}
+
+		break;
+	}
+
+	if (allocated != lv->le_count) {
+		log_error("Insufficient contiguous allocatable extents (%u) "
+			  "for logical volume %s: %u required",
+			  allocated + max_found, lv->name, lv->le_count);
+		return 0;
+	}
+
+	return 1;
+}
+
 /*
 * Areas just get allocated in order until the lv
 * is full.
@@ -279,12 +378,15 @@ static int _alloc_next_free(struct logical_volume *lv,
 * Chooses a correct allocation policy.
 */
 static int _allocate(struct volume_group *vg, struct logical_volume *lv,
-		     struct list *acceptable_pvs, uint32_t allocated,
-		     uint32_t stripes, uint32_t stripe_size)
+		     struct list *allocatable_pvs, uint32_t allocated,
+		     uint32_t stripes, uint32_t stripe_size,
+		     struct physical_volume *mirrored_pv, uint32_t mirrored_pe,
+		     uint32_t status)
 {
 	int r = 0;
 	struct pool *scratch;
 	struct list *pvms, *old_tail = lv->segments.p, *segh;
+	struct lv_segment *seg;

 	if (!(scratch = pool_create(1024))) {
 		stack;
@@ -294,12 +396,15 @@ static int _allocate(struct volume_group *vg, struct logical_volume *lv,
 	/*
 	 * Build the sets of available areas on the pv's.
 	 */
-	if (!(pvms = create_pv_maps(scratch, vg, acceptable_pvs)))
+	if (!(pvms = create_pv_maps(scratch, vg, allocatable_pvs)))
 		goto out;

 	if (stripes > 1)
 		r = _alloc_striped(lv, pvms, allocated, stripes, stripe_size);

+	else if (mirrored_pv)
+		r = _alloc_mirrored(lv, pvms, allocated, mirrored_pv,
+				    mirrored_pe);
 	else if (lv->alloc == ALLOC_CONTIGUOUS)
 		r = _alloc_contiguous(lv, pvms, allocated);

@@ -319,8 +424,11 @@ static int _allocate(struct volume_group *vg, struct logical_volume *lv,
 		 * Iterate through the new segments, updating pe
 		 * counts in pv's.
 		 */
-		for (segh = lv->segments.p; segh != old_tail; segh = segh->p)
-			_get_extents(list_item(segh, struct lv_segment));
+		for (segh = lv->segments.p; segh != old_tail; segh = segh->p) {
+			seg = list_item(segh, struct lv_segment);
+			_get_extents(seg);
+			seg->status = status;
+		}
 	} else {
 		/*
 		 * Put the segment list back how we found it.
@@ -334,7 +442,7 @@ static int _allocate(struct volume_group *vg, struct logical_volume *lv,
 	return r;
 }

-static char *_generate_lv_name(struct volume_group *vg,
+static char *_generate_lv_name(struct volume_group *vg, const char *format,
 			       char *buffer, size_t len)
 {
 	struct list *lvh;
@@ -344,19 +452,86 @@ static char *_generate_lv_name(struct volume_group *vg,
 	list_iterate(lvh, &vg->lvs) {
 		lv = (list_item(lvh, struct lv_list)->lv);

-		if (sscanf(lv->name, "lvol%d", &i) != 1)
+		if (sscanf(lv->name, format, &i) != 1)
 			continue;

 		if (i > high)
 			high = i;
 	}

-	if (lvm_snprintf(buffer, len, "lvol%d", high + 1) < 0)
+	if (lvm_snprintf(buffer, len, format, high + 1) < 0)
 		return NULL;

 	return buffer;
 }

+struct logical_volume *lv_create_empty(struct format_instance *fi,
+				       const char *name,
+				       const char *name_format,
+				       uint32_t status,
+				       alloc_policy_t alloc,
+				       struct volume_group *vg)
+{
+	struct cmd_context *cmd = vg->cmd;
+	struct lv_list *ll = NULL;
+	struct logical_volume *lv;
+	char dname[32];
+
+	if (vg->max_lv == vg->lv_count) {
+		log_error("Maximum number of logical volumes (%u) reached "
+			  "in volume group %s", vg->max_lv, vg->name);
+		return NULL;
+	}
+
+	if (!name && !(name = _generate_lv_name(vg, name_format, dname,
+						sizeof(dname)))) {
+		log_error("Failed to generate unique name for the new "
+			  "logical volume");
+		return NULL;
+	}
+
+	log_verbose("Creating logical volume %s", name);
+
+	if (!(ll = pool_zalloc(cmd->mem, sizeof(*ll))) ||
+	    !(ll->lv = pool_zalloc(cmd->mem, sizeof(*ll->lv)))) {
+		log_error("lv_list allocation failed");
+		if (ll)
+			pool_free(cmd->mem, ll);
+		return NULL;
+	}
+
+	lv = ll->lv;
+	lv->vg = vg;
+
+	if (!(lv->name = pool_strdup(cmd->mem, name))) {
+		log_error("lv name strdup failed");
+		if (ll)
+			pool_free(cmd->mem, ll);
+		return NULL;
+	}
+
+	lv->status = status;
+	lv->alloc = alloc;
+	lv->read_ahead = 0;
+	lv->major = -1;
+	lv->minor = -1;
+	lv->size = UINT64_C(0);
+	lv->le_count = 0;
+	list_init(&lv->segments);
+
+	if (fi->fmt->ops->lv_setup && !fi->fmt->ops->lv_setup(fi, lv)) {
+		stack;
+		if (ll)
+			pool_free(cmd->mem, ll);
+		return NULL;
+	}
+
+	vg->lv_count++;
+	list_add(&vg->lvs, &ll->list);
+
+	return lv;
+}
+
 struct logical_volume *lv_create(struct format_instance *fi,
 				 const char *name,
 				 uint32_t status,
@@ -365,12 +540,9 @@ struct logical_volume *lv_create(struct format_instance *fi,
 				 uint32_t stripe_size,
 				 uint32_t extents,
 				 struct volume_group *vg,
-				 struct list *acceptable_pvs)
+				 struct list *allocatable_pvs)
 {
-	struct cmd_context *cmd = vg->cmd;
-	struct lv_list *ll = NULL;
 	struct logical_volume *lv;
-	char dname[32];

 	if (!extents) {
 		log_error("Unable to create logical volume %s with no extents",
@@ -384,70 +556,33 @@ struct logical_volume *lv_create(struct format_instance *fi,
 		return NULL;
 	}

-	if (vg->max_lv == vg->lv_count) {
-		log_error("Maximum number of logical volumes (%u) reached "
-			  "in volume group %s", vg->max_lv, vg->name);
-		return NULL;
-	}
-
-	if (stripes > list_size(acceptable_pvs)) {
+	if (stripes > list_size(allocatable_pvs)) {
 		log_error("Number of stripes (%u) must not exceed "
 			  "number of physical volumes (%d)", stripes,
-			  list_size(acceptable_pvs));
+			  list_size(allocatable_pvs));
 		return NULL;
 	}

-	if (!name && !(name = _generate_lv_name(vg, dname, sizeof(dname)))) {
-		log_error("Failed to generate unique name for the new "
-			  "logical volume");
-		return NULL;
-	}
-
-	log_verbose("Creating logical volume %s", name);
-
-	if (!(ll = pool_zalloc(cmd->mem, sizeof(*ll))) ||
-	    !(ll->lv = pool_zalloc(cmd->mem, sizeof(*ll->lv)))) {
+	if (!(lv = lv_create_empty(fi, name, "lvol%d", status, alloc, vg))) {
 		stack;
 		return NULL;
 	}

-	lv = ll->lv;
-
-	lv->vg = vg;
-
-	if (!(lv->name = pool_strdup(cmd->mem, name))) {
-		stack;
-		goto bad;
-	}
-
-	lv->status = status;
-	lv->alloc = alloc;
-	lv->read_ahead = 0;
-	lv->minor = -1;
 	lv->size = (uint64_t) extents *vg->extent_size;
 	lv->le_count = extents;
-	list_init(&lv->segments);

-	if (!_allocate(vg, lv, acceptable_pvs, 0u, stripes, stripe_size)) {
+	if (!_allocate(vg, lv, allocatable_pvs, 0u, stripes, stripe_size,
+		       NULL, 0u, 0u)) {
 		stack;
-		goto bad;
+		return NULL;
 	}

 	if (fi->fmt->ops->lv_setup && !fi->fmt->ops->lv_setup(fi, lv)) {
 		stack;
-		goto bad;
+		return NULL;
 	}

-	vg->lv_count++;
-	list_add(&vg->lvs, &ll->list);
-
 	return lv;
-
-      bad:
-	if (ll)
-		pool_free(cmd->mem, ll);
-
-	return NULL;
 }

 int lv_reduce(struct format_instance *fi,
@@ -490,7 +625,7 @@ int lv_reduce(struct format_instance *fi,
 int lv_extend(struct format_instance *fi,
 	      struct logical_volume *lv,
 	      uint32_t stripes, uint32_t stripe_size,
-	      uint32_t extents, struct list *acceptable_pvs)
+	      uint32_t extents, struct list *allocatable_pvs)
 {
 	uint32_t old_le_count = lv->le_count;
 	uint64_t old_size = lv->size;
@@ -498,10 +633,11 @@ int lv_extend(struct format_instance *fi,
 	lv->le_count += extents;
 	lv->size += (uint64_t) extents *lv->vg->extent_size;

-	if (!_allocate(lv->vg, lv, acceptable_pvs, old_le_count,
-		       stripes, stripe_size)) {
+	if (!_allocate(lv->vg, lv, allocatable_pvs, old_le_count,
+		       stripes, stripe_size, NULL, 0u, 0u)) {
 		lv->le_count = old_le_count;
 		lv->size = old_size;
+		stack;
 		return 0;
 	}

@@ -519,6 +655,35 @@ int lv_extend(struct format_instance *fi,
 	return 1;
 }

+int lv_extend_mirror(struct format_instance *fid,
+		     struct logical_volume *lv,
+		     struct physical_volume *mirrored_pv,
+		     uint32_t mirrored_pe,
+		     uint32_t extents, struct list *allocatable_pvs,
+		     uint32_t status)
+{
+	uint32_t old_le_count = lv->le_count;
+	uint64_t old_size = lv->size;
+
+	lv->le_count += extents;
+	lv->size += (uint64_t) extents *lv->vg->extent_size;
+
+	if (!_allocate(lv->vg, lv, allocatable_pvs, old_le_count,
+		       1, extents, mirrored_pv, mirrored_pe, status)) {
+		lv->le_count = old_le_count;
+		lv->size = old_size;
+		stack;
+		return 0;
+	}
+
+	if (fid->fmt->ops->lv_setup && !fid->fmt->ops->lv_setup(fid, lv)) {
+		stack;
+		return 0;
+	}
+
+	return 1;
+}
+
 int lv_remove(struct volume_group *vg, struct logical_volume *lv)
 {
 	struct list *segh;
@@ -541,3 +706,36 @@ int lv_remove(struct volume_group *vg, struct logical_volume *lv)

 	return 1;
 }
+
+/* Unlock list of LVs */
+int unlock_lvs(struct cmd_context *cmd, struct list *lvs)
+{
+	struct list *lvh;
+	struct logical_volume *lv;
+
+	list_iterate(lvh, lvs) {
+		lv = list_item(lvh, struct lv_list)->lv;
+		unlock_lv(cmd, lv->lvid.s);
+	}
+
+	return 1;
+}
+
+/* Lock a list of LVs */
+int lock_lvs(struct cmd_context *cmd, struct list *lvs, int flags)
+{
+	struct list *lvh;
+	struct logical_volume *lv;
+
+	list_iterate(lvh, lvs) {
+		lv = list_item(lvh, struct lv_list)->lv;
+		if (!lock_vol(cmd, lv->lvid.s, flags)) {
+			log_error("Failed to lock %s", lv->name);
+			/* FIXME Only unlock the locked ones */
+			unlock_lvs(cmd, lvs);
+			return 0;
+		}
+	}
+
+	return 1;
+}
--- a/lib/metadata/merge.c
+++ b/lib/metadata/merge.c
@@ -20,20 +20,26 @@ static int _merge(struct lv_segment *first, struct lv_segment *second)
 	if (!first ||
 	    (first->type != SEG_STRIPED) ||
 	    (first->type != second->type) ||
-	    (first->stripes != second->stripes) ||
+	    (first->area_count != second->area_count) ||
 	    (first->stripe_size != second->stripe_size))
 		return 0;

-	for (s = 0; s < first->stripes; s++) {
-		width = first->len / first->stripes;
+	for (s = 0; s < first->area_count; s++) {
+		width = first->area_len;

-		if ((first->area[s].pv != second->area[s].pv) ||
-		    (first->area[s].pe + width != second->area[s].pe))
+		/* FIXME Relax this to first type != second type ? */
+		if (first->area[s].type != AREA_PV ||
+		    second->area[s].type != AREA_PV)
+			return 0;
+
+		if ((first->area[s].u.pv.pv != second->area[s].u.pv.pv) ||
+		    (first->area[s].u.pv.pe + width != second->area[s].u.pv.pe))
 			return 0;
 	}

 	/* we should merge */
 	first->len += second->len;
+	first->area_len += second->area_len;

 	return 1;
 }
--- a/lib/metadata/metadata.c
+++ b/lib/metadata/metadata.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2001 Sistina Software (UK) Limited.
+ * Copyright (C) 2001-2003 Sistina Software (UK) Limited.
 *
 * This file is released under the LGPL.
 */
@@ -10,7 +10,8 @@
 #include "metadata.h"
 #include "toolcontext.h"
 #include "lvm-string.h"
-#include "cache.h"
+#include "lvmcache.h"
+#include "memlock.h"

 static int _add_pv_to_vg(struct format_instance *fid, struct volume_group *vg,
 			 const char *pv_name)
@@ -23,14 +24,14 @@ static int _add_pv_to_vg(struct format_instance *fid, struct volume_group *vg,
 	log_verbose("Adding physical volume '%s' to volume group '%s'",
 		    pv_name, vg->name);

-	if (!(pvl = pool_alloc(mem, sizeof(*pvl)))) {
+	if (!(pvl = pool_zalloc(mem, sizeof(*pvl)))) {
 		log_error("pv_list allocation for '%s' failed", pv_name);
 		return 0;
 	}

 	list_init(&mdas);
 	if (!(pv = pv_read(fid->fmt->cmd, pv_name, &mdas, NULL))) {
-		log_error("Failed to read existing physical volume '%s'",
+		log_error("%s not identified as an existing physical volume",
 			  pv_name);
 		return 0;
 	}
@@ -68,8 +69,8 @@ static int _add_pv_to_vg(struct format_instance *fid, struct volume_group *vg,

 	pv->pe_alloc_count = 0;

-	if (!fid->fmt->ops->pv_setup(fid->fmt, __UINT64_C(0), 0,
-				     vg->extent_size, 0, __UINT64_C(0),
+	if (!fid->fmt->ops->pv_setup(fid->fmt, UINT64_C(0), 0,
+				     vg->extent_size, 0, UINT64_C(0),
 				     &fid->metadata_areas, pv, vg)) {
 		log_error("Format-specific setup of physical volume '%s' "
 			  "failed.", pv_name);
@@ -157,6 +158,7 @@ struct volume_group *vg_create(struct cmd_context *cmd, const char *vg_name,
 	struct volume_group *vg;
 	struct pool *mem = cmd->mem;
 	int consistent = 0;
+	int old_partial;

 	if (!(vg = pool_zalloc(mem, sizeof(*vg)))) {
 		stack;
@@ -164,12 +166,13 @@ struct volume_group *vg_create(struct cmd_context *cmd, const char *vg_name,
 	}

 	/* is this vg name already in use ? */
+	old_partial = partial_mode();
 	init_partial(1);
 	if (vg_read(cmd, vg_name, &consistent)) {
 		log_err("A volume group called '%s' already exists.", vg_name);
 		goto bad;
 	}
-	init_partial(0);
+	init_partial(old_partial);

 	if (!id_create(&vg->id)) {
 		log_err("Couldn't create uuid for volume group '%s'.", vg_name);
@@ -318,6 +321,18 @@ struct pv_list *find_pv_in_vg(struct volume_group *vg, const char *pv_name)
 	return NULL;
 }

+int pv_is_in_vg(struct volume_group *vg, struct physical_volume *pv)
+{
+	struct list *pvh;
+
+	list_iterate(pvh, &vg->pvs) {
+		if (pv == list_item(pvh, struct pv_list)->pv)
+			 return 1;
+	}
+
+	return 0;
+}
+
 struct physical_volume *find_pv_in_vg_by_uuid(struct volume_group *vg,
 					      struct id *id)
 {
@@ -389,6 +404,21 @@ struct physical_volume *find_pv(struct volume_group *vg, struct device *dev)
 	return NULL;
 }

+/* Find segment at a given logical extent in an LV */
+struct lv_segment *find_seg_by_le(struct logical_volume *lv, uint32_t le)
+{
+	struct list *segh;
+	struct lv_segment *seg;
+
+	list_iterate(segh, &lv->segments) {
+		seg = list_item(segh, struct lv_segment);
+		if (le >= seg->le && le < seg->le + seg->len)
+			return seg;
+	}
+
+	return NULL;
+}
+
 int vg_remove(struct volume_group *vg)
 {
 	struct list *mdah;
@@ -408,11 +438,14 @@ int vg_remove(struct volume_group *vg)
 	return 1;
 }

+/*
+ * After vg_write() returns success,
+ * caller MUST call either vg_commit() or vg_revert()
+ */
 int vg_write(struct volume_group *vg)
 {
-	struct list *mdah;
+	struct list *mdah, *mdah2;
 	struct metadata_area *mda;
-	int cache_updated = 0;

 	if (vg->status & PARTIAL_VG) {
 		log_error("Cannot change metadata for partial volume group %s",
@@ -432,21 +465,61 @@ int vg_write(struct volume_group *vg)
 		mda = list_item(mdah, struct metadata_area);
 		if (!mda->ops->vg_write(vg->fid, vg, mda)) {
 			stack;
+			/* Revert */
+			list_uniterate(mdah2, &vg->fid->metadata_areas, mdah) {
+				mda = list_item(mdah2, struct metadata_area);
+				if (mda->ops->vg_revert &&
+				    !mda->ops->vg_revert(vg->fid, vg, mda)) {
+					stack;
+				}
+			}
 			return 0;
 		}
 	}

+	return 1;
+}
+
+/* Commit pending changes */
+int vg_commit(struct volume_group *vg)
+{
+	struct list *mdah;
+	struct metadata_area *mda;
+	int cache_updated = 0;
+	int failed = 0;
+
 	/* Commit to each copy of the metadata area */
 	list_iterate(mdah, &vg->fid->metadata_areas) {
 		mda = list_item(mdah, struct metadata_area);
-		if (!cache_updated) {
-			cache_update_vg(vg);
-			cache_updated = 1;
-		}
+		failed = 0;
 		if (mda->ops->vg_commit &&
 		    !mda->ops->vg_commit(vg->fid, vg, mda)) {
 			stack;
-			return 0;
+			failed = 1;
+		}
+		/* Update cache first time we succeed */
+		if (!failed && !cache_updated) {
+			lvmcache_update_vg(vg);
+			cache_updated = 1;
+		}
+
+	}
+
+	/* If at least one mda commit succeeded, it was committed */
+	return cache_updated;
+}
+
+/* Don't commit any pending changes */
+int vg_revert(struct volume_group *vg)
+{
+	struct list *mdah;
+	struct metadata_area *mda;
+
+	list_iterate(mdah, &vg->fid->metadata_areas) {
+		mda = list_item(mdah, struct metadata_area);
+		if (mda->ops->vg_revert &&
+		    !mda->ops->vg_revert(vg->fid, vg, mda)) {
+			stack;
 		}
 	}

@@ -456,7 +529,7 @@ int vg_write(struct volume_group *vg)
 /* Make orphan PVs look like a VG */
 static struct volume_group *_vg_read_orphans(struct cmd_context *cmd)
 {
-	struct cache_vginfo *vginfo;
+	struct lvmcache_vginfo *vginfo;
 	struct list *ih;
 	struct device *dev;
 	struct pv_list *pvl;
@@ -482,7 +555,7 @@ static struct volume_group *_vg_read_orphans(struct cmd_context *cmd)
 	}

 	list_iterate(ih, &vginfo->infos) {
-		dev = list_item(ih, struct cache_info)->dev;
+		dev = list_item(ih, struct lvmcache_info)->dev;
 		if (!(pv = pv_read(cmd, dev_name(dev), NULL, NULL))) {
 			continue;
 		}
@@ -523,9 +596,13 @@ struct volume_group *vg_read(struct cmd_context *cmd, const char *vgname,
 	/* Find the vgname in the cache */
 	/* If it's not there we must do full scan to be completely sure */
 	if (!(fmt = fmt_from_vgname(vgname))) {
-		cache_label_scan(cmd, 0);
+		lvmcache_label_scan(cmd, 0);
 		if (!(fmt = fmt_from_vgname(vgname))) {
-			cache_label_scan(cmd, 1);
+			if (memlock()) {
+				stack;
+				return NULL;
+			}
+			lvmcache_label_scan(cmd, 1);
 			if (!(fmt = fmt_from_vgname(vgname))) {
 				stack;
 				return NULL;
@@ -564,7 +641,7 @@ struct volume_group *vg_read(struct cmd_context *cmd, const char *vgname,
 		return NULL;
 	}

-	cache_update_vg(correct_vg);
+	lvmcache_update_vg(correct_vg);

 	if (inconsistent) {
 		if (!*consistent)
@@ -587,8 +664,15 @@ struct volume_group *vg_read(struct cmd_context *cmd, const char *vgname,
 		}
 	}

-	*consistent = 1;
+	if ((correct_vg->status & PVMOVE) && !pvmove_mode()) {
+		log_error("WARNING: Interrupted pvmove detected in "
+			  "volume group %s", vg->name);
+		log_error("Please restore the metadata by running "
+			  "vgcfgrestore.");
+		return NULL;
+	}

+	*consistent = 1;
 	return correct_vg;
 }

@@ -598,10 +682,10 @@ struct volume_group *vg_read(struct cmd_context *cmd, const char *vgname,
 */
 struct volume_group *vg_read_by_vgid(struct cmd_context *cmd, const char *vgid)
 {
-	char *vgname;
-	struct list *vgnames, *slh;
+	// const char *vgname;
+	// struct list *vgnames, *slh;
 	struct volume_group *vg;
-	struct cache_vginfo *vginfo;
+	struct lvmcache_vginfo *vginfo;
 	int consistent = 0;

 	/* Is corresponding vgname already cached? */
@@ -618,7 +702,14 @@ struct volume_group *vg_read_by_vgid(struct cmd_context *cmd, const char *vgid)
 		}
 	}

-	/* The slow way - full scan required to cope with vgrename */
+	return NULL;
+
+	/* FIXME Need a genuine read by ID here - don't vg_read by name! */
+	/* FIXME Disabled vgrenames while active for now because we aren't
+	 *       allowed to do a full scan here any more. */
+
+/*** FIXME Cope with vgrename here
+	// The slow way - full scan required to cope with vgrename 
 	if (!(vgnames = get_vgs(cmd, 1))) {
 		log_error("vg_read_by_vgid: get_vgs failed");
 		return NULL;
@@ -627,7 +718,7 @@ struct volume_group *vg_read_by_vgid(struct cmd_context *cmd, const char *vgid)
 	list_iterate(slh, vgnames) {
 		vgname = list_item(slh, struct str_list)->str;
 		if (!vgname || !*vgname)
-			continue;	/* FIXME Unnecessary? */
+			continue;	// FIXME Unnecessary? 
 		consistent = 0;
 		if ((vg = vg_read(cmd, vgname, &consistent)) &&
 		    !strncmp(vg->id.uuid, vgid, ID_LEN)) {
@@ -641,6 +732,7 @@ struct volume_group *vg_read_by_vgid(struct cmd_context *cmd, const char *vgid)
 	}

 	return NULL;
+***/
 }

 /* Only called by activate.c */
@@ -677,7 +769,7 @@ struct physical_volume *pv_read(struct cmd_context *cmd, const char *pv_name,
 {
 	struct physical_volume *pv;
 	struct label *label;
-	struct cache_info *info;
+	struct lvmcache_info *info;
 	struct device *dev;

 	if (!(dev = dev_cache_get(pv_name, cmd->filter))) {
@@ -686,17 +778,16 @@ struct physical_volume *pv_read(struct cmd_context *cmd, const char *pv_name,
 	}

 	if (!(label_read(dev, &label))) {
-		log_error("Failed to read label on physical volume %s",
-			  pv_name);
+		log_error("No physical volume label read from %s", pv_name);
 		return 0;
 	}

-	info = (struct cache_info *) label->info;
+	info = (struct lvmcache_info *) label->info;
 	if (label_sector && *label_sector)
 		*label_sector = label->sector;

 	if (!(pv = pool_zalloc(cmd->mem, sizeof(*pv)))) {
-		log_error("pv_list allocation for '%s' failed", pv_name);
+		log_error("pv allocation for '%s' failed", pv_name);
 		return 0;
 	}

@@ -716,19 +807,21 @@ struct physical_volume *pv_read(struct cmd_context *cmd, const char *pv_name,
 /* May return empty list */
 struct list *get_vgs(struct cmd_context *cmd, int full_scan)
 {
-	return cache_get_vgnames(cmd, full_scan);
+	return lvmcache_get_vgnames(cmd, full_scan);
 }

 struct list *get_pvs(struct cmd_context *cmd)
 {
 	struct list *results;
-	char *vgname;
+	const char *vgname;
 	struct list *pvh, *tmp;
 	struct list *vgnames, *slh;
 	struct volume_group *vg;
 	int consistent = 0;
+	int old_partial;
+	int old_pvmove;

-	cache_label_scan(cmd, 0);
+	lvmcache_label_scan(cmd, 0);

 	if (!(results = pool_alloc(cmd->mem, sizeof(*results)))) {
 		log_error("PV list allocation failed");
@@ -745,7 +838,10 @@ struct list *get_pvs(struct cmd_context *cmd)

 	/* Read every VG to ensure cache consistency */
 	/* Orphan VG is last on list */
+	old_partial = partial_mode();
+	old_pvmove = pvmove_mode();
 	init_partial(1);
+	init_pvmove(1);
 	list_iterate(slh, vgnames) {
 		vgname = list_item(slh, struct str_list)->str;
 		if (!vgname)
@@ -764,7 +860,8 @@ struct list *get_pvs(struct cmd_context *cmd)
 			list_add(results, pvh);
 		}
 	}
-	init_partial(0);
+	init_pvmove(old_pvmove);
+	init_partial(old_partial);

 	return results;
 }
--- a/lib/metadata/metadata.h
+++ b/lib/metadata/metadata.h
@@ -12,17 +12,13 @@

 #include "ctype.h"
 #include "dev-cache.h"
-#include "list.h"
 #include "uuid.h"

-#include <sys/types.h>
-#include <asm/page.h>
-
 #define NAME_LEN 128
 #define MAX_STRIPES 128
 #define SECTOR_SHIFT 9L
 #define SECTOR_SIZE ( 1L << SECTOR_SHIFT )
-#define STRIPE_SIZE_MIN ( PAGE_SIZE >> SECTOR_SHIFT)	/* PAGESIZE in sectors */
+#define STRIPE_SIZE_MIN ( getpagesize() >> SECTOR_SHIFT)	/* PAGESIZE in sectors */
 #define STRIPE_SIZE_MAX ( 512L * 1024L >> SECTOR_SHIFT)	/* 512 KB in sectors */
 #define PV_MIN_SIZE ( 512L * 1024L >> SECTOR_SHIFT)	/* 512 KB in sectors */
 #define PE_ALIGN (65536UL >> SECTOR_SHIFT)	/* PE alignment */
@@ -42,7 +38,9 @@
 #define VISIBLE_LV		0x00000040	/* LV */
 #define FIXED_MINOR		0x00000080	/* LV */
 /* FIXME Remove when metadata restructuring is completed */
-#define SNAPSHOT		0x00001000	/* LV - temp internal use only */
+#define SNAPSHOT		0x00001000	/* LV - tmp internal use only */
+#define PVMOVE			0x00002000	/* VG LV SEG */
+#define LOCKED			0x00004000	/* LV */

 #define LVM_READ              	0x00000100	/* LV VG */
 #define LVM_WRITE             	0x00000200	/* LV VG */
@@ -62,9 +60,14 @@ typedef enum {
 typedef enum {
 	SEG_STRIPED,
 	SEG_SNAPSHOT,
-	SEG_MIRROR
+	SEG_MIRRORED
 } segment_type_t;

+typedef enum {
+	AREA_PV,
+	AREA_LV
+} area_type_t;
+
 struct cmd_context;
 struct format_handler;
 struct labeller;
@@ -123,6 +126,8 @@ struct metadata_area_ops {
 			 struct metadata_area * mda);
 	int (*vg_commit) (struct format_instance * fid,
 			  struct volume_group * vg, struct metadata_area * mda);
+	int (*vg_revert) (struct format_instance * fid,
+			  struct volume_group * vg, struct metadata_area * mda);
 	int (*vg_remove) (struct format_instance * fi, struct volume_group * vg,
 			  struct metadata_area * mda);
 };
@@ -177,17 +182,30 @@ struct lv_segment {
 	uint32_t le;
 	uint32_t len;

+	uint32_t status;
+
 	/* FIXME Fields depend on segment type */
 	uint32_t stripe_size;
-	uint32_t stripes;
+	uint32_t area_count;
+	uint32_t area_len;
 	struct logical_volume *origin;
 	struct logical_volume *cow;
 	uint32_t chunk_size;
+	uint32_t extents_moved;

 	/* There will be one area for each stripe */
 	struct {
-		struct physical_volume *pv;
-		uint32_t pe;
+		area_type_t type;
+		union {
+			struct {
+				struct physical_volume *pv;
+				uint32_t pe;
+			} pv;
+			struct {
+				struct logical_volume *lv;
+				uint32_t le;
+			} lv;
+		} u;
 	} area[0];
 };

@@ -200,6 +218,7 @@ struct logical_volume {
 	uint32_t status;
 	alloc_policy_t alloc;
 	uint32_t read_ahead;
+	int32_t major;
 	int32_t minor;

 	uint64_t size;
@@ -223,10 +242,17 @@ struct name_list {
 	char *name;
 };

+struct alloc_area {
+	struct list list;
+	uint32_t start;		/* PEs */
+	uint32_t count;		/* PEs */
+};
+
 struct pv_list {
 	struct list list;
 	struct physical_volume *pv;
-	struct list *mdas;
+	struct list *mdas;	/* Metadata areas */
+	struct list *alloc_areas;	/* Areas we may allocate from */
 };

 struct lv_list {
@@ -314,6 +340,8 @@ struct format_handler {
 * Utility functions
 */
 int vg_write(struct volume_group *vg);
+int vg_commit(struct volume_group *vg);
+int vg_revert(struct volume_group *vg);
 struct volume_group *vg_read(struct cmd_context *cmd, const char *vg_name,
 			     int *consistent);
 struct volume_group *vg_read_by_vgid(struct cmd_context *cmd, const char *vgid);
@@ -360,8 +388,16 @@ struct logical_volume *lv_create(struct format_instance *fi,
 				 uint32_t stripe_size,
 				 uint32_t extents,
 				 struct volume_group *vg,
-				 struct list *acceptable_pvs);
+				 struct list *allocatable_pvs);

+struct logical_volume *lv_create_empty(struct format_instance *fi,
+				       const char *name,
+				       const char *name_format,
+				       uint32_t status,
+				       alloc_policy_t alloc,
+				       struct volume_group *vg);
+
+/* Manipulate LVs */
 int lv_reduce(struct format_instance *fi,
 	      struct logical_volume *lv, uint32_t extents);

@@ -371,6 +407,17 @@ int lv_extend(struct format_instance *fi,
 	      uint32_t stripe_size,
 	      uint32_t extents, struct list *allocatable_pvs);

+int lv_extend_mirror(struct format_instance *fid,
+		     struct logical_volume *lv,
+		     struct physical_volume *mirrored_pv,
+		     uint32_t mirrored_pe,
+		     uint32_t extents, struct list *allocatable_pvs,
+		     uint32_t status);
+
+/* Lock list of LVs */
+int lock_lvs(struct cmd_context *cmd, struct list *lvs, int flags);
+int unlock_lvs(struct cmd_context *cmd, struct list *lvs);
+
 /* lv must be part of vg->lvs */
 int lv_remove(struct volume_group *vg, struct logical_volume *lv);

@@ -401,6 +448,9 @@ struct logical_volume *lv_from_lvid(struct cmd_context *cmd,
 struct physical_volume *find_pv(struct volume_group *vg, struct device *dev);
 struct logical_volume *find_lv(struct volume_group *vg, const char *lv_name);

+/* Find LV segment containing given LE */
+struct lv_segment *find_seg_by_le(struct logical_volume *lv, uint32_t le);
+
 /*
 * Remove a dev_dir if present.
 */
@@ -424,6 +474,8 @@ int lv_merge_segments(struct logical_volume *lv);
 int lv_is_origin(const struct logical_volume *lv);
 int lv_is_cow(const struct logical_volume *lv);

+int pv_is_in_vg(struct volume_group *vg, struct physical_volume *pv);
+
 struct snapshot *find_cow(const struct logical_volume *lv);
 struct snapshot *find_origin(const struct logical_volume *lv);
 struct list *find_snapshots(const struct logical_volume *lv);
@@ -434,7 +486,27 @@ int vg_add_snapshot(struct logical_volume *origin,

 int vg_remove_snapshot(struct volume_group *vg, struct logical_volume *cow);

-static inline int validate_vgname(const char *n)
+/*
+ * Mirroring functions
+ */
+int insert_pvmove_mirrors(struct cmd_context *cmd,
+			  struct logical_volume *lv_mirr,
+			  struct physical_volume *pv,
+			  struct logical_volume *lv,
+			  struct list *allocatable_pvs,
+			  struct list *lvs_changed);
+int remove_pvmove_mirrors(struct volume_group *vg,
+			  struct logical_volume *lv_mirr);
+struct logical_volume *find_pvmove_lv(struct volume_group *vg,
+				      struct device *dev);
+struct physical_volume *get_pvmove_pv_from_lv(struct logical_volume *lv);
+struct physical_volume *get_pvmove_pv_from_lv_mirr(struct logical_volume
+						   *lv_mirr);
+float pvmove_percent(struct logical_volume *lv_mirr);
+struct list *lvs_using_lv(struct cmd_context *cmd, struct volume_group *vg,
+			  struct logical_volume *lv);
+
+static inline int validate_name(const char *n)
 {
 	register char c;
 	register int len = 0;
--- a/lib/metadata/mirror.c
+++ b/lib/metadata/mirror.c
@@ -0,0 +1,250 @@
+/*
+ * Copyright (C) 2003  Sistina Software (UK) Limited.
+ *
+ * This file is released under the LGPL.
+ */
+
+#include "lib.h"
+#include "metadata.h"
+#include "toolcontext.h"
+
+/* 
+ * Replace any LV segments on given PV with temporary mirror.
+ * Returns list of LVs changed.
+ */
+int insert_pvmove_mirrors(struct cmd_context *cmd,
+			  struct logical_volume *lv_mirr,
+			  struct physical_volume *pv,
+			  struct logical_volume *lv,
+			  struct list *allocatable_pvs,
+			  struct list *lvs_changed)
+{
+	struct list *segh;
+	struct lv_segment *seg;
+	struct lv_list *lvl;
+	int lv_used = 0;
+	uint32_t s, start_le, extent_count = 0u;
+
+	list_iterate(segh, &lv->segments) {
+		seg = list_item(segh, struct lv_segment);
+		for (s = 0; s < seg->area_count; s++) {
+			if (seg->area[s].type != AREA_PV ||
+			    seg->area[s].u.pv.pv->dev != pv->dev)
+				continue;
+
+			if (!lv_used) {
+				if (!(lvl = pool_alloc(cmd->mem, sizeof(*lvl)))) {
+					log_error("lv_list alloc failed");
+					return 0;
+				}
+				lvl->lv = lv;
+				list_add(lvs_changed, &lvl->list);
+				lv_used = 1;
+			}
+
+			start_le = lv_mirr->le_count;
+			if (!lv_extend_mirror(lv->vg->fid, lv_mirr,
+					      seg->area[s].u.pv.pv,
+					      seg->area[s].u.pv.pe,
+					      seg->area_len, allocatable_pvs,
+					      PVMOVE)) {
+				log_error("Allocation for temporary "
+					  "pvmove LV failed");
+				return 0;
+			}
+			seg->area[s].type = AREA_LV;
+			seg->area[s].u.lv.lv = lv_mirr;
+			seg->area[s].u.lv.le = start_le;
+
+			extent_count += seg->area_len;
+
+			lv->status |= LOCKED;
+		}
+	}
+
+	log_verbose("Moving %u extents of logical volume %s/%s", extent_count,
+		    lv->vg->name, lv->name);
+
+	return 1;
+}
+
+int remove_pvmove_mirrors(struct volume_group *vg,
+			  struct logical_volume *lv_mirr)
+{
+	struct list *lvh, *segh;
+	struct logical_volume *lv1;
+	struct lv_segment *seg, *mir_seg;
+	uint32_t s, c;
+
+	list_iterate(lvh, &vg->lvs) {
+		lv1 = list_item(lvh, struct lv_list)->lv;
+		if (lv1 == lv_mirr)
+			continue;
+
+		list_iterate(segh, &lv1->segments) {
+			seg = list_item(segh, struct lv_segment);
+			for (s = 0; s < seg->area_count; s++) {
+				if (seg->area[s].type != AREA_LV ||
+				    seg->area[s].u.lv.lv != lv_mirr)
+					continue;
+
+				if (!(mir_seg = find_seg_by_le(lv_mirr,
+							       seg->area[s].u.
+							       lv.le))) {
+					log_error("No segment found with LE");
+					return 0;
+				}
+
+				if (mir_seg->type != SEG_MIRRORED ||
+				    !(mir_seg->status & PVMOVE) ||
+				    mir_seg->le != seg->area[s].u.lv.le ||
+				    mir_seg->area_count != 2 ||
+				    mir_seg->area_len != seg->area_len) {
+					log_error("Incompatible segments");
+					return 0;
+				}
+
+				if (mir_seg->extents_moved == mir_seg->area_len)
+					c = 1;
+				else
+					c = 0;
+
+				seg->area[s].type = AREA_PV;
+				seg->area[s].u.pv.pv = mir_seg->area[c].u.pv.pv;
+				seg->area[s].u.pv.pe = mir_seg->area[c].u.pv.pe;
+
+				mir_seg->type = SEG_STRIPED;
+				mir_seg->area_count = 1;
+
+				lv1->status &= ~LOCKED;
+			}
+		}
+	}
+
+	return 1;
+}
+
+struct physical_volume *get_pvmove_pv_from_lv_mirr(struct logical_volume
+						   *lv_mirr)
+{
+	struct list *segh;
+	struct lv_segment *seg;
+
+	list_iterate(segh, &lv_mirr->segments) {
+		seg = list_item(segh, struct lv_segment);
+		if (seg->type != SEG_MIRRORED)
+			continue;
+		if (seg->area[0].type != AREA_PV)
+			continue;
+		return seg->area[0].u.pv.pv;
+	}
+
+	return NULL;
+}
+
+struct physical_volume *get_pvmove_pv_from_lv(struct logical_volume *lv)
+{
+	struct list *segh;
+	struct lv_segment *seg;
+	uint32_t s;
+
+	list_iterate(segh, &lv->segments) {
+		seg = list_item(segh, struct lv_segment);
+		for (s = 0; s < seg->area_count; s++) {
+			if (seg->area[s].type != AREA_LV)
+				continue;
+			return get_pvmove_pv_from_lv_mirr(seg->area[s].u.lv.lv);
+		}
+	}
+
+	return NULL;
+}
+
+struct logical_volume *find_pvmove_lv(struct volume_group *vg,
+				      struct device *dev)
+{
+	struct list *lvh, *segh;
+	struct logical_volume *lv;
+	struct lv_segment *seg;
+
+	/* Loop through all LVs */
+	list_iterate(lvh, &vg->lvs) {
+		lv = list_item(lvh, struct lv_list)->lv;
+
+		if (!(lv->status & PVMOVE))
+			continue;
+
+		list_iterate(segh, &lv->segments) {
+			seg = list_item(segh, struct lv_segment);
+			if (seg->area[0].type != AREA_PV)
+				continue;
+			if (seg->area[0].u.pv.pv->dev != dev)
+				continue;
+			return lv;
+		}
+	}
+
+	return NULL;
+}
+
+struct list *lvs_using_lv(struct cmd_context *cmd, struct volume_group *vg,
+			  struct logical_volume *lv)
+{
+	struct list *lvh, *segh, *lvs;
+	struct logical_volume *lv1;
+	struct lv_list *lvl;
+	struct lv_segment *seg;
+	uint32_t s;
+
+	if (!(lvs = pool_alloc(cmd->mem, sizeof(*lvs)))) {
+		log_error("lvs list alloc failed");
+		return NULL;
+	}
+
+	list_init(lvs);
+
+	/* Loop through all LVs except the one supplied */
+	list_iterate(lvh, &vg->lvs) {
+		lv1 = list_item(lvh, struct lv_list)->lv;
+		if (lv1 == lv)
+			continue;
+
+		list_iterate(segh, &lv1->segments) {
+			seg = list_item(segh, struct lv_segment);
+			for (s = 0; s < seg->area_count; s++) {
+				if (seg->area[s].type != AREA_LV ||
+				    seg->area[s].u.lv.lv != lv)
+					continue;
+				if (!(lvl = pool_alloc(cmd->mem, sizeof(*lvl)))) {
+					log_error("lv_list alloc failed");
+					return NULL;
+				}
+				lvl->lv = lv1;
+				list_add(lvs, &lvl->list);
+				goto next_lv;
+			}
+		}
+	      next_lv:
+		;
+	}
+
+	return lvs;
+}
+
+float pvmove_percent(struct logical_volume *lv_mirr)
+{
+	uint32_t numerator = 0u, denominator = 0u;
+	struct list *segh;
+	struct lv_segment *seg;
+
+	list_iterate(segh, &lv_mirr->segments) {
+		seg = list_item(segh, struct lv_segment);
+		if (!(seg->status & PVMOVE))
+			continue;
+
+		numerator += seg->extents_moved;
+		denominator += seg->area_len;
+	}
+
+	return denominator ? (float) numerator *100 / denominator : 100.0;
+}
--- a/lib/metadata/pv_map.c
+++ b/lib/metadata/pv_map.c
@@ -11,13 +11,13 @@
 static int _create_maps(struct pool *mem, struct list *pvs, struct list *maps)
 {
 	struct list *tmp;
-	struct physical_volume *pv;
 	struct pv_map *pvm;
+	struct pv_list *pvl;

 	list_iterate(tmp, pvs) {
-		pv = list_item(tmp, struct pv_list)->pv;
+		pvl = list_item(tmp, struct pv_list);

-		if (!(pv->status & ALLOCATABLE_PV))
+		if (!(pvl->pv->status & ALLOCATABLE_PV))
 			continue;

 		if (!(pvm = pool_zalloc(mem, sizeof(*pvm)))) {
@@ -25,9 +25,9 @@ static int _create_maps(struct pool *mem, struct list *pvs, struct list *maps)
 			return 0;
 		}

-		pvm->pv = pv;
+		pvm->pvl = pvl;
 		if (!(pvm->allocated_extents =
-		      bitset_create(mem, pv->pe_count))) {
+		      bitset_create(mem, pvl->pv->pe_count))) {
 			stack;
 			return 0;
 		}
@@ -39,8 +39,8 @@ static int _create_maps(struct pool *mem, struct list *pvs, struct list *maps)
 	return 1;
 }

-static int _set_allocated(struct hash_table *hash,
-			  struct physical_volume *pv, uint32_t pe)
+static int _set_allocd(struct hash_table *hash,
+		       struct physical_volume *pv, uint32_t pe)
 {
 	struct pv_map *pvm;

@@ -82,7 +82,7 @@ static int _fill_bitsets(struct volume_group *vg, struct list *maps)
 	/* populate the hash table */
 	list_iterate(pvmh, maps) {
 		pvm = list_item(pvmh, struct pv_map);
-		if (!hash_insert(hash, dev_name(pvm->pv->dev), pvm)) {
+		if (!hash_insert(hash, dev_name(pvm->pvl->pv->dev), pvm)) {
 			stack;
 			goto out;
 		}
@@ -95,13 +95,14 @@ static int _fill_bitsets(struct volume_group *vg, struct list *maps)
 		list_iterate(segh, &lv->segments) {
 			seg = list_item(segh, struct lv_segment);

-			for (s = 0; s < seg->stripes; s++) {
-				for (pe = 0; pe < (seg->len / seg->stripes);
-				     pe++) {
-					if (!_set_allocated(hash,
-							    seg->area[s].pv,
-							    seg->area[s].pe
-							    + pe)) {
+			for (s = 0u; s < seg->area_count; s++) {
+				for (pe = 0u; pe < seg->area_len; pe++) {
+					if (seg->area[s].type != AREA_PV)
+						continue;
+					if (!_set_allocd(hash,
+							 seg->area[s].u.pv.pv,
+							 seg->area[s].u.pv.pe
+							 + pe)) {
 						stack;
 						goto out;
 					}
@@ -140,22 +141,22 @@ static void _insert_area(struct list *head, struct pv_area *a)
 }

 static int _create_single_area(struct pool *mem, struct pv_map *pvm,
-			       uint32_t *extent)
+			       uint32_t end, uint32_t *extent)
 {
-	uint32_t e = *extent, b, count = pvm->pv->pe_count;
+	uint32_t e = *extent, b;
 	struct pv_area *pva;

-	while (e < count && bit(pvm->allocated_extents, e))
+	while (e <= end && bit(pvm->allocated_extents, e))
 		e++;

-	if (e == count) {
+	if (e > end) {
 		*extent = e;
 		return 1;
 	}

 	b = e++;

-	while (e < count && !bit(pvm->allocated_extents, e))
+	while (e <= end && !bit(pvm->allocated_extents, e))
 		e++;

 	if (!(pva = pool_zalloc(mem, sizeof(*pva)))) {
@@ -163,6 +164,8 @@ static int _create_single_area(struct pool *mem, struct pv_map *pvm,
 		return 0;
 	}

+	log_debug("Allowing allocation on %s start PE %" PRIu32 " length %"
+		  PRIu32, dev_name(pvm->pvl->pv->dev), b, e - b);
 	pva->map = pvm;
 	pva->start = b;
 	pva->count = e - b;
@@ -172,12 +175,18 @@ static int _create_single_area(struct pool *mem, struct pv_map *pvm,
 	return 1;
 }

-static int _create_areas(struct pool *mem, struct pv_map *pvm)
+static int _create_areas(struct pool *mem, struct pv_map *pvm, uint32_t start,
+			 uint32_t count)
 {
-	uint32_t pe = 0;
+	uint32_t pe, end;

-	while (pe < pvm->pv->pe_count)
-		if (!_create_single_area(mem, pvm, &pe)) {
+	end = start + count - 1;
+	if (end > pvm->pvl->pv->pe_count - 1)
+		end = pvm->pvl->pv->pe_count - 1;
+
+	pe = start;
+	while (pe <= end)
+		if (!_create_single_area(mem, pvm, end, &pe)) {
 			stack;
 			return 0;
 		}
@@ -185,7 +194,36 @@ static int _create_areas(struct pool *mem, struct pv_map *pvm)
 	return 1;
 }

-static int _create_all_areas(struct pool *mem, struct list *maps)
+static int _create_allocatable_areas(struct pool *mem, struct pv_map *pvm)
+{
+	struct list *alloc_areas, *aah;
+	struct alloc_area *aa;
+
+	alloc_areas = pvm->pvl->alloc_areas;
+
+	if (alloc_areas) {
+		list_iterate(aah, alloc_areas) {
+			aa = list_item(aah, struct alloc_area);
+			if (!_create_areas(mem, pvm, aa->start, aa->count)) {
+				stack;
+				return 0;
+			}
+
+		}
+	} else {
+		/* Use whole PV */
+		if (!_create_areas(mem, pvm, UINT32_C(0),
+				   pvm->pvl->pv->pe_count)) {
+			stack;
+			return 0;
+		}
+	}
+
+	return 1;
+}
+
+static int _create_all_areas(struct pool *mem, struct list *maps,
+			     struct list *pvs)
 {
 	struct list *tmp;
 	struct pv_map *pvm;
@@ -193,7 +231,7 @@ static int _create_all_areas(struct pool *mem, struct list *maps)
 	list_iterate(tmp, maps) {
 		pvm = list_item(tmp, struct pv_map);

-		if (!_create_areas(mem, pvm)) {
+		if (!_create_allocatable_areas(mem, pvm)) {
 			stack;
 			return 0;
 		}
@@ -226,7 +264,7 @@ struct list *create_pv_maps(struct pool *mem, struct volume_group *vg,
 		goto bad;
 	}

-	if (!_create_all_areas(mem, maps)) {
+	if (!_create_all_areas(mem, maps, pvs)) {
 		log_error("Couldn't create area maps in %s", vg->name);
 		goto bad;
 	}
--- a/lib/metadata/pv_map.h
+++ b/lib/metadata/pv_map.h
@@ -28,7 +28,7 @@ struct pv_area {
 };

 struct pv_map {
-	struct physical_volume *pv;
+	struct pv_list *pvl;
 	bitset_t allocated_extents;
 	struct list areas;

--- a/lib/misc/crc.h
+++ b/lib/misc/crc.h
@@ -7,8 +7,6 @@
 #ifndef _LVM_CRC_H
 #define _LVM_CRC_H

-#include "lvm-types.h"
-
 #define INITIAL_CRC 0xf597a6cf

 uint32_t calc_crc(uint32_t initial, void *buf, uint32_t size);
--- a/lib/misc/lib.h
+++ b/lib/misc/lib.h
@@ -11,10 +11,9 @@
 #define _LVM_LIB_H

 #define _REENTRANT
+#define _GNU_SOURCE

 #include "log.h"
 #include "dbg_malloc.h"

-#include <assert.h>
-
 #endif
--- a/lib/misc/sharedlib.h
+++ b/lib/misc/sharedlib.h
@@ -6,6 +6,7 @@
 */

 #include "config.h"
+#include <dlfcn.h>

 void *load_shared_library(struct config_tree *cf, const char *libname,
 			  const char *what);
--- a/lib/mm/dbg_malloc.h
+++ b/lib/mm/dbg_malloc.h
@@ -7,9 +7,9 @@
 #ifndef _LVM_DBG_MALLOC_H
 #define _LVM_DBG_MALLOC_H

+#include "lvm-types.h"
 #include <stdlib.h>
 #include <string.h>
-#include <sys/types.h>

 #ifdef DEBUG_MEM
 void *malloc_aux(size_t s, const char *file, int line);
@@ -18,15 +18,15 @@ void *realloc_aux(void *p, unsigned int s, const char *file, int line);
 int dump_memory(void);
 void bounds_check(void);

-#define dbg_malloc(s) malloc_aux((s), __FILE__, __LINE__)
-#define dbg_free(p) free_aux(p)
-#define dbg_realloc(p, s) realloc_aux(p, s, __FILE__, __LINE__)
+#  define dbg_malloc(s) malloc_aux((s), __FILE__, __LINE__)
+#  define dbg_free(p) free_aux(p)
+#  define dbg_realloc(p, s) realloc_aux(p, s, __FILE__, __LINE__)
 #else
-#define dbg_malloc(s) malloc(s)
-#define dbg_free(p) free(p)
-#define dbg_realloc(p, s) realloc(p, s)
-#define dump_memory()
-#define bounds_check()
+#  define dbg_malloc(s) malloc(s)
+#  define dbg_free(p) free(p)
+#  define dbg_realloc(p, s) realloc(p, s)
+#  define dump_memory()
+#  define bounds_check()
 #endif

 static inline char *dbg_strdup(const char *str)
--- a/lib/mm/memlock.c
+++ b/lib/mm/memlock.c
@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2003 Sistina Software (UK) Limited.
+ *
+ * This file is released under the LGPL.
+ */
+
+#include "lib.h"
+#include "memlock.h"
+#include "pool.h"
+#include "defaults.h"
+
+#include <limits.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+
+#ifndef DEVMAPPER_SUPPORT
+
+void memlock_inc(void)
+{
+	return;
+}
+void memlock_dec(void)
+{
+	return;
+}
+int memlock(void)
+{
+	return 0;
+}
+
+#else				/* DEVMAPPER_SUPPORT */
+
+static size_t _size_stack;
+static size_t _size_malloc_tmp;
+static size_t _size_malloc = 2000000;
+
+static void *_malloc_mem = NULL;
+static int _memlock_count = 0;
+static int _priority;
+static int _default_priority;
+
+static void _touch_memory(void *mem, size_t size)
+{
+	size_t pagesize = getpagesize();
+	void *pos = mem;
+	void *end = mem + size - sizeof(long);
+
+	while (pos < end) {
+		*(long *) pos = 1;
+		pos += pagesize;
+	}
+}
+
+static void _allocate_memory(void)
+{
+	void *stack_mem, *temp_malloc_mem;
+
+	if ((stack_mem = alloca(_size_stack)))
+		_touch_memory(stack_mem, _size_stack);
+
+	if ((temp_malloc_mem = malloc(_size_malloc_tmp)))
+		_touch_memory(temp_malloc_mem, _size_malloc_tmp);
+
+	if ((_malloc_mem = malloc(_size_malloc)))
+		_touch_memory(_malloc_mem, _size_malloc);
+
+	free(temp_malloc_mem);
+}
+
+static void _release_memory(void)
+{
+	free(_malloc_mem);
+}
+
+/* Stop memory getting swapped out */
+static void _lock_memory(void)
+{
+#ifdef MCL_CURRENT
+	if (mlockall(MCL_CURRENT | MCL_FUTURE))
+		log_sys_error("mlockall", "");
+	else
+		log_very_verbose("Locking memory");
+#endif
+	_allocate_memory();
+
+	errno = 0;
+	if (((_priority = getpriority(PRIO_PROCESS, 0)) == -1) && errno)
+		log_sys_error("getpriority", "");
+	else
+		if (setpriority(PRIO_PROCESS, 0, _default_priority))
+			log_error("setpriority %u failed: %s",
+				  _default_priority, strerror(errno));
+}
+
+static void _unlock_memory(void)
+{
+#ifdef MCL_CURRENT
+	if (munlockall())
+		log_sys_error("munlockall", "");
+	else
+		log_very_verbose("Unlocking memory");
+#endif
+	_release_memory();
+	if (setpriority(PRIO_PROCESS, 0, _priority))
+		log_error("setpriority %u failed: %s", _priority,
+			  strerror(errno));
+}
+
+void memlock_inc(void)
+{
+	if (!_memlock_count++)
+		_lock_memory();
+	log_debug("memlock_count inc to %d", _memlock_count);
+}
+
+void memlock_dec(void)
+{
+	if (_memlock_count && (!--_memlock_count))
+		_unlock_memory();
+	log_debug("memlock_count dec to %d", _memlock_count);
+}
+
+int memlock(void)
+{
+	return _memlock_count;
+}
+
+void memlock_init(struct cmd_context *cmd)
+{
+	_size_stack = find_config_int(cmd->cf->root,
+				      "activation/reserved_stack",
+				      '/', DEFAULT_RESERVED_STACK) * 1024;
+	_size_malloc_tmp = find_config_int(cmd->cf->root,
+					   "activation/reserved_memory",
+					   '/', DEFAULT_RESERVED_MEMORY) * 1024;
+	_default_priority = find_config_int(cmd->cf->root,
+				            "activation/process_priority",
+				            '/', DEFAULT_PROCESS_PRIORITY);
+}
+
+#endif
--- a/lib/mm/memlock.h
+++ b/lib/mm/memlock.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (C) 2001 Sistina Software (UK) Limited.
+ *
+ * This file is released under the LGPL.
+ */
+
+#ifndef LVM_MEMLOCK_H
+#define LVM_MEMLOCK_H
+
+#include "toolcontext.h"
+
+void memlock_inc(void);
+void memlock_dec(void);
+int memlock(void);
+void memlock_init(struct cmd_context *cmd);
+
+#endif
--- a/lib/mm/pool-debug.c
+++ b/lib/mm/pool-debug.c
@@ -29,7 +29,7 @@ struct pool *pool_create(size_t chunk_hint)
 	struct pool *mem = dbg_malloc(sizeof(*mem));

 	if (!mem) {
-		log_error("Couldn't create memory pool (size %u)",
+		log_error("Couldn't create memory pool (size %" PRIsize_t ")",
 			  sizeof(*mem));
 		return NULL;
 	}
@@ -205,3 +205,15 @@ char *pool_strdup(struct pool *p, const char *str)

 	return ret;
 }
+
+char *pool_strndup(struct pool *p, const char *str, size_t n)
+{
+	char *ret = pool_alloc(p, n + 1);
+
+	if (ret) {
+		strncpy(ret, str, n);
+		ret[n] = '\0';
+	}
+
+	return ret;
+}
--- a/lib/mm/pool-fast.c
+++ b/lib/mm/pool-fast.c
@@ -33,7 +33,7 @@ struct pool *pool_create(size_t chunk_hint)
 	struct pool *p = dbg_malloc(sizeof(*p));

 	if (!p) {
-		log_error("Couldn't create memory pool (size %" PRIuPTR ")",
+		log_error("Couldn't create memory pool (size %" PRIsize_t ")",
 			  sizeof(*p));
 		return 0;
 	}
@@ -205,6 +205,18 @@ char *pool_strdup(struct pool *p, const char *str)
 	return ret;
 }

+char *pool_strndup(struct pool *p, const char *str, size_t n)
+{
+	char *ret = pool_alloc(p, n + 1);
+
+	if (ret) {
+		strncpy(ret, str, n);
+		ret[n] = '\0';
+	}
+
+	return ret;
+}
+
 void _align_chunk(struct chunk *c, unsigned alignment)
 {
 	c->begin += alignment - ((unsigned long) c->begin & (alignment - 1));
@@ -221,8 +233,8 @@ struct chunk *_new_chunk(struct pool *p, size_t s)
 		p->spare_chunk = 0;
 	} else {
 		if (!(c = dbg_malloc(s))) {
-			log_err("Out of memory.  Requested %" PRIuPTR " bytes.",
-				s);
+			log_err("Out of memory.  Requested %" PRIsize_t
+				" bytes.", s);
 			return NULL;
 		}

--- a/lib/mm/pool.h
+++ b/lib/mm/pool.h
@@ -106,6 +106,7 @@ void pool_abandon_object(struct pool *p);

 /* utilities */
 char *pool_strdup(struct pool *p, const char *str);
+char *pool_strndup(struct pool *p, const char *str, size_t n);

 static inline void *pool_zalloc(struct pool *p, size_t s)
 {
--- a/lib/mm/xlate.h
+++ b/lib/mm/xlate.h
@@ -8,10 +8,37 @@
 #ifndef _LVM_XLATE_H
 #define _LVM_XLATE_H

-#include <asm/byteorder.h>
-
-#define xlate16(x) __cpu_to_le16((x))
-#define xlate32(x) __cpu_to_le32((x))
-#define xlate64(x) __cpu_to_le64((x))
+#ifdef linux
+#  include <asm/byteorder.h>
+#  define xlate16(x) __cpu_to_le16((x))
+#  define xlate32(x) __cpu_to_le32((x))
+#  define xlate64(x) __cpu_to_le64((x))
+#else
+#  include <machine/endian.h>
+#  if !defined(BYTE_ORDER) || \
+      (BYTE_ORDER != BIG_ENDIAN && BYTE_ORDER != LITTLE_ENDIAN)
+#    error "Undefined or unrecognised BYTE_ORDER";
+#  endif
+#  if BYTE_ORDER == LITTLE_ENDIAN
+#    define xlate16(x) (x)
+#    define xlate32(x) (x)
+#    define xlate64(x) (x)
+#  else
+#    define xlate16(x) (((x) & 0x00ffU) << 8 | \
+		        ((x) & 0xff00U) >> 8)
+#    define xlate32(x) (((x) & 0x000000ffU) << 24 | \
+		        ((x) & 0xff000000U) >> 24 | \
+		        ((x) & 0x0000ff00U) << 8  | \
+		        ((x) & 0x00ff0000U) >> 8)
+#    define xlate64(x) (((x) & 0x00000000000000ffU) << 56 | \
+                        ((x) & 0xff00000000000000U) >> 56 | \
+                        ((x) & 0x000000000000ff00U) << 40 | \
+                        ((x) & 0x00ff000000000000U) >> 40 | \
+                        ((x) & 0x0000000000ff0000U) << 24 | \
+                        ((x) & 0x0000ff0000000000U) >> 24 | \
+                        ((x) & 0x00000000ff000000U) << 8 | \
+                        ((x) & 0x000000ff00000000U) >> 8)
+#  endif
+#endif

 #endif
--- a/lib/regex/parse_rx.h
+++ b/lib/regex/parse_rx.h
@@ -24,7 +24,7 @@ enum {
 * start and end of a string.
 */
 #define HAT_CHAR 0x2
-#define DOLLAR_CHAR 0x2
+#define DOLLAR_CHAR 0x3

 struct rx_node {
 	int type;
--- a/lib/report/columns.h
+++ b/lib/report/columns.h
@@ -7,14 +7,19 @@
 /* Report type, Containing struct, Field type, Report heading,
 * Data field with struct to pass to display function, Minimum display width,
 * Display Fn, Unique format identifier */
+
+/* *INDENT-OFF* */
 FIELD(LVS, lv, STR, "LV UUID", lvid.id[1], 38, uuid, "lv_uuid")
 FIELD(LVS, lv, STR, "LV", name, 4, string, "lv_name")
 FIELD(LVS, lv, STR, "Attr", lvid, 4, lvstatus, "lv_attr")
+FIELD(LVS, lv, NUM, "Maj", major, 3, int32, "lv_major")
 FIELD(LVS, lv, NUM, "Min", minor, 3, int32, "lv_minor")
 FIELD(LVS, lv, NUM, "LSize", size, 5, size64, "lv_size")
 FIELD(LVS, lv, NUM, "#Seg", lvid, 4, lvsegcount, "seg_count")
 FIELD(LVS, lv, STR, "Origin", lvid, 6, origin, "origin")
 FIELD(LVS, lv, NUM, "Snap%", lvid, 6, snpercent, "snap_percent")
+FIELD(LVS, lv, NUM, "Move%", lvid, 6, movepercent, "move_percent")
+FIELD(LVS, lv, STR, "Move", lvid, 4, movepv, "move_pv")

 FIELD(PVS, pv, STR, "Fmt", id, 3, pvfmt, "pv_fmt")
 FIELD(PVS, pv, STR, "PV UUID", id, 38, uuid, "pv_uuid")
@@ -44,9 +49,9 @@ FIELD(VGS, vg, NUM, "#SN", snapshot_count, 3, uint32, "snap_count")
 FIELD(VGS, vg, NUM, "Seq", seqno, 3, uint32, "vg_seqno")

 FIELD(SEGS, seg, STR, "Type", list, 4, segtype, "segtype")
-FIELD(SEGS, seg, NUM, "#Str", stripes, 4, uint32, "stripes")
+FIELD(SEGS, seg, NUM, "#Str", area_count, 4, uint32, "stripes")
 FIELD(SEGS, seg, NUM, "Stripe", stripe_size, 6, size32, "stripesize")
 FIELD(SEGS, seg, NUM, "Chunk", chunk_size, 5, size32, "chunksize")
 FIELD(SEGS, seg, NUM, "Start", list, 5, segstart, "seg_start")
 FIELD(SEGS, seg, NUM, "SSize", list, 5, segsize, "seg_size")
-
+/* *INDENT-ON* */
--- a/lib/report/report.c
+++ b/lib/report/report.c
@@ -27,8 +27,6 @@
 #include "display.h"
 #include "activate.h"

-#include <sys/types.h>
-
 /* 
 * For macro use
 */
@@ -165,20 +163,26 @@ static int _lvstatus_disp(struct report_handle *rh, struct field *field,
 	const struct logical_volume *lv = (const struct logical_volume *) data;
 	struct lvinfo info;
 	char *repstr;
+	struct snapshot *snap;
+	float snap_percent;

 	if (!(repstr = pool_zalloc(rh->mem, 7))) {
 		log_error("pool_alloc failed");
 		return 0;
 	}

-	if (lv_is_origin(lv))
+	if (lv->status & PVMOVE)
+		repstr[0] = 'p';
+	else if (lv_is_origin(lv))
 		repstr[0] = 'o';
 	else if (find_cow(lv))
 		repstr[0] = 's';
 	else
 		repstr[0] = '-';

-	if (lv->status & LVM_WRITE)
+	if (lv->status & PVMOVE)
+		repstr[1] = '-';
+	else if (lv->status & LVM_WRITE)
 		repstr[1] = 'w';
 	else
 		repstr[1] = 'r';
@@ -188,6 +192,9 @@ static int _lvstatus_disp(struct report_handle *rh, struct field *field,
 	else
 		repstr[2] = 'n';

+	if (lv->status & LOCKED)
+		repstr[2] = toupper(repstr[2]);
+
 	if (lv->status & FIXED_MINOR)
 		repstr[3] = 'm';	/* Fixed Minor */
 	else
@@ -202,6 +209,18 @@ static int _lvstatus_disp(struct report_handle *rh, struct field *field,
 			repstr[5] = 'o';	/* Open */
 		else
 			repstr[5] = '-';
+
+		/* Snapshot dropped? */
+		if ((snap = find_cow(lv)) &&
+		    (!lv_snapshot_percent(snap->cow, &snap_percent) ||
+		     snap_percent < 0 || snap_percent >= 100)) {
+			repstr[0] = toupper(repstr[0]);
+			if (info.suspended)
+				repstr[4] = 'S';
+			else
+				repstr[4] = 'I';
+		}
+
 	} else {
 		repstr[4] = '-';
 		repstr[5] = '-';
@@ -282,7 +301,7 @@ static int _segtype_disp(struct report_handle *rh, struct field *field,
 {
 	const struct lv_segment *seg = (const struct lv_segment *) data;

-	if (seg->stripes == 1)
+	if (seg->area_count == 1)
 		field->report_string = "linear";
 	else
 		field->report_string = get_segtype_string(seg->type);
@@ -306,6 +325,28 @@ static int _origin_disp(struct report_handle *rh, struct field *field,
 	return 1;
 }

+static int _movepv_disp(struct report_handle *rh, struct field *field,
+			const void *data)
+{
+	const struct logical_volume *lv = (const struct logical_volume *) data;
+	const char *name;
+	struct list *segh;
+	struct lv_segment *seg;
+
+	list_iterate(segh, &lv->segments) {
+		seg = list_item(segh, struct lv_segment);
+		if (!(seg->status & PVMOVE))
+			continue;
+		name = dev_name(seg->area[0].u.pv.pv->dev);
+		return _string_disp(rh, field, &name);
+	}
+
+	field->report_string = "";
+	field->sort_value = (const void *) field->report_string;
+
+	return 1;
+}
+
 static int _size32_disp(struct report_handle *rh, struct field *field,
 			const void *data)
 {
@@ -456,7 +497,7 @@ static int _uuid_disp(struct report_handle *rh, struct field *field,
 {
 	char *repstr = NULL;

-	if (!(field->report_string = pool_alloc(rh->mem, 40))) {
+	if (!(repstr = pool_alloc(rh->mem, 40))) {
 		log_error("pool_alloc failed");
 		return 0;
 	}
@@ -546,6 +587,7 @@ static int _snpercent_disp(struct report_handle *rh, struct field *field,
 {
 	const struct logical_volume *lv = (const struct logical_volume *) data;
 	struct snapshot *snap;
+	struct lvinfo info;
 	float snap_percent;
 	uint64_t *sortval;
 	char *repstr;
@@ -555,10 +597,17 @@ static int _snpercent_disp(struct report_handle *rh, struct field *field,
 		return 0;
 	}

-	if (!(snap = find_cow(lv))
-	    || !lv_snapshot_percent(snap->cow, &snap_percent)) {
+	if (!(snap = find_cow(lv)) ||
+	    (lv_info(snap->cow, &info) && !info.exists)) {
 		field->report_string = "";
-		*sortval = __UINT64_C(0);
+		*sortval = UINT64_C(0);
+		field->sort_value = sortval;
+		return 1;
+	}
+
+	if (!lv_snapshot_percent(snap->cow, &snap_percent) || snap_percent < 0) {
+		field->report_string = "100.00";
+		*sortval = UINT64_C(100);
 		field->sort_value = sortval;
 		return 1;
 	}
@@ -568,15 +617,54 @@ static int _snpercent_disp(struct report_handle *rh, struct field *field,
 		return 0;
 	}

-	if (snap_percent == -1)
-		snap_percent = 100;
-
 	if (lvm_snprintf(repstr, 7, "%.2f", snap_percent) < 0) {
 		log_error("snapshot percentage too large");
 		return 0;
 	}

-	*sortval = snap_percent * __UINT64_C(1000);
+	*sortval = snap_percent * UINT64_C(1000);
+	field->sort_value = sortval;
+	field->report_string = repstr;
+
+	return 1;
+}
+
+static int _movepercent_disp(struct report_handle *rh, struct field *field,
+			     const void *data)
+{
+	struct logical_volume *lv = (struct logical_volume *) data;
+	float move_percent;
+	uint64_t *sortval;
+	char *repstr;
+
+	if (!(sortval = pool_alloc(rh->mem, sizeof(uint64_t)))) {
+		log_error("pool_alloc failed");
+		return 0;
+	}
+
+	if (!(lv->status & PVMOVE)) {
+		field->report_string = "";
+		*sortval = UINT64_C(0);
+		field->sort_value = sortval;
+		return 1;
+	}
+
+	/* Update percentage done in lv metadata in core */
+	lv_mirror_percent(lv, 0, &move_percent, NULL);
+
+	move_percent = pvmove_percent(lv);
+
+	if (!(repstr = pool_zalloc(rh->mem, 8))) {
+		log_error("pool_alloc failed");
+		return 0;
+	}
+
+	if (lvm_snprintf(repstr, 7, "%.2f", move_percent) < 0) {
+		log_error("move percentage too large");
+		return 0;
+	}
+
+	*sortval = move_percent * UINT64_C(1000);
 	field->sort_value = sortval;
 	field->report_string = repstr;

@@ -744,7 +832,8 @@ static int _parse_options(struct report_handle *rh, const char *format)
 		while (*we && *we != ',')
 			we++;
 		if (!_field_match(rh, ws, (size_t) (we - ws))) {
-			log_error("Unrecognised field: %.*s", (int) (we - ws), ws);
+			log_error("Unrecognised field: %.*s", (int) (we - ws),
+				  ws);
 			return 0;
 		}
 	}
@@ -765,7 +854,8 @@ static int _parse_keys(struct report_handle *rh, const char *keys)
 		while (*we && *we != ',')
 			we++;
 		if (!_key_match(rh, ws, (size_t) (we - ws))) {
-			log_error("Unrecognised field: %.*s", (int) (we - ws), ws);
+			log_error("Unrecognised field: %.*s", (int) (we - ws),
+				  ws);
 			return 0;
 		}
 	}
--- a/lib/uuid/uuid.h
+++ b/lib/uuid/uuid.h
@@ -7,8 +7,6 @@
 #ifndef _LVM_UUID_H
 #define _LVM_UUID_H

-#include "lvm-types.h"
-
 #define ID_LEN 32
 #define ID_LEN_S "32"

--- a/libdm/.export.sym
+++ b/libdm/.export.sym
@@ -1,6 +1,7 @@
-Base { 
+Base {
 	global:
 		dm_log_init;
+		dm_log_init_verbose;
 		dm_task_create;
 		dm_task_destroy;
 		dm_task_set_name;
@@ -9,16 +10,22 @@ Base {
 		dm_task_get_driver_version;
 		dm_task_get_info;
 		dm_task_get_deps;
+		dm_task_get_name;
+		dm_task_get_names;
 		dm_task_get_uuid;
 		dm_task_set_ro;
 		dm_task_set_newname;
+		dm_task_set_event_nr;
+		dm_task_set_major;
 		dm_task_set_minor;
 		dm_task_add_target;
 		dm_get_next_target;
 		dm_task_run;
 		dm_set_dev_dir;
 		dm_dir;
+		dm_format_dev;
+		dm_lib_release;
+		dm_lib_exit;
 	local:
 		*;
 };
-
--- a/libdm/Makefile.in
+++ b/libdm/Makefile.in
@@ -9,7 +9,7 @@ top_srcdir = @top_srcdir@
 VPATH = @srcdir@
 interface = @interface@

-SOURCES=$(interface)/libdevmapper.c libdm-common.c
+SOURCES=libdm-common.c $(interface)/libdevmapper.c

 INCLUDES=-I$(interface)

--- a/libdm/datastruct/list.h
+++ b/libdm/datastruct/list.h
@@ -7,10 +7,14 @@
 #ifndef _LVM_LIST_H
 #define _LVM_LIST_H

+#include <assert.h>
+
 struct list {
 	struct list *n, *p;
 };

+#define LIST_INIT(name)	struct list name = { &(name), &(name) }
+
 static inline void list_init(struct list *head)
 {
 	head->n = head->p = head;
@@ -54,9 +58,17 @@ static inline int list_end(struct list *head, struct list *elem)
 	return elem->n == head;
 }

+static inline struct list *list_next(struct list *head, struct list *elem)
+{
+	return (list_end(head, elem) ? NULL : elem->n);
+}
+
 #define list_iterate(v, head) \
 	for (v = (head)->n; v != head; v = v->n)

+#define list_uniterate(v, head, start) \
+	for (v = (start)->p; v != head; v = v->p)
+
 #define list_iterate_safe(v, t, head) \
 	for (v = (head)->n, t = v->n; v != head; v = t, t = v->n)

@@ -74,8 +86,14 @@ static inline unsigned int list_size(const struct list *head)
 #define list_item(v, t) \
    ((t *)((uintptr_t)(v) - (uintptr_t)&((t *) 0)->list))

-/* Given a known element in a known structure, locate the struct list */
-#define list_head(v, t, e) \
-    (((t *)((uintptr_t)(v) - (uintptr_t)&((t *) 0)->e))->list)
+#define list_struct_base(v, t, h) \
+    ((t *)((uintptr_t)(v) - (uintptr_t)&((t *) 0)->h))
+
+/* Given a known element in a known structure, locate another */
+#define struct_field(v, t, e, f) \
+    (((t *)((uintptr_t)(v) - (uintptr_t)&((t *) 0)->e))->f)
+
+/* Given a known element in a known structure, locate the list head */
+#define list_head(v, t, e) struct_field(v, t, e, list)

 #endif
--- a/libdm/ioctl/libdevmapper.c
+++ b/libdm/ioctl/libdevmapper.c
@@ -4,60 +4,460 @@
 * This file is released under the LGPL.
 */

-#include "libdevmapper.h"
+#include "libdm-targets.h"
+#include "libdm-common.h"
+#include "libdm-compat.h"

 #include <stdio.h>
 #include <stdlib.h>
-#include <stdarg.h>
 #include <string.h>
 #include <unistd.h>
 #include <fcntl.h>
-#include <sys/stat.h>
+#include <dirent.h>
 #include <errno.h>
-#include <linux/kdev_t.h>
-
+#include <sys/stat.h>
+#include <limits.h>
 #include <linux/limits.h>
-#include <sys/ioctl.h>
-#include <linux/dm-ioctl.h>
-
-#include "libdm-targets.h"
-#include "libdm-common.h"
-
-#define ALIGNMENT sizeof(int)

 /*
- * Ensure build compatibility.  The hard-coded version here (major, minor)
- * is the highest present in the _cmd_data array below.
+ * Ensure build compatibility.  
+ * The hard-coded versions here are the highest present 
+ * in the _cmd_data arrays.
 */
-#if DM_VERSION_MAJOR != 1 || DM_VERSION_MINOR < 0
-	#error The version of dm-ioctl.h included is incompatible.
+
+#if !((DM_VERSION_MAJOR == 1 && DM_VERSION_MINOR >= 0) || \
+      (DM_VERSION_MAJOR == 4 && DM_VERSION_MINOR >= 0))
+#error The version of dm-ioctl.h included is incompatible.
 #endif

-static struct {
-	char *name;
-	int cmd;
-	int version[3];
-} _cmd_data[] = {
-	{ "create",	DM_DEV_CREATE,    {1, 0, 0} },
-	{ "reload",	DM_DEV_RELOAD,    {1, 0, 0} },
-	{ "remove",	DM_DEV_REMOVE,    {1, 0, 0} },
-	{ "remove_all",	DM_REMOVE_ALL,    {1, 0, 0} },
-	{ "suspend",	DM_DEV_SUSPEND,   {1, 0, 0} },
-	{ "resume",	DM_DEV_SUSPEND,   {1, 0, 0} },
-	{ "info",	DM_DEV_STATUS,    {1, 0, 0} },
-	{ "deps",	DM_DEV_DEPS,      {1, 0, 0} },
-	{ "rename",	DM_DEV_RENAME,    {1, 0, 0} },
-	{ "version",	DM_VERSION,       {1, 0, 0} },
-	{ "status",	DM_TARGET_STATUS, {1, 0, 0} },
-	{ "table",	DM_TARGET_STATUS, {1, 0, 0} },
-	{ "waitevent",	DM_TARGET_WAIT,   {1, 0, 0} },
+/* dm major version no for running kernel */
+static int _dm_version = DM_VERSION_MAJOR;
+static int _log_suppress = 0;
+
+static int _control_fd = -1;
+static int _version_checked = 0;
+static int _version_ok = 1;
+
+/*
+ * Support both old and new major numbers to ease the transition.
+ * Clumsy, but only temporary.
+ */
+#if DM_VERSION_MAJOR == 4 && defined(DM_COMPAT)
+const int _dm_compat = 1;
+#else
+const int _dm_compat = 0;
+#endif
+
+
+/* *INDENT-OFF* */
+static struct cmd_data _cmd_data_v4[] = {
+	{"create",	DM_DEV_CREATE,		{4, 0, 0}},
+	{"reload",	DM_TABLE_LOAD,		{4, 0, 0}},
+	{"remove",	DM_DEV_REMOVE,		{4, 0, 0}},
+	{"remove_all",	DM_REMOVE_ALL,		{4, 0, 0}},
+	{"suspend",	DM_DEV_SUSPEND,		{4, 0, 0}},
+	{"resume",	DM_DEV_SUSPEND,		{4, 0, 0}},
+	{"info",	DM_DEV_STATUS,		{4, 0, 0}},
+	{"deps",	DM_TABLE_DEPS,		{4, 0, 0}},
+	{"rename",	DM_DEV_RENAME,		{4, 0, 0}},
+	{"version",	DM_VERSION,		{4, 0, 0}},
+	{"status",	DM_TABLE_STATUS,	{4, 0, 0}},
+	{"table",	DM_TABLE_STATUS,	{4, 0, 0}},
+	{"waitevent",	DM_DEV_WAIT,		{4, 0, 0}},
+	{"names",	DM_LIST_DEVICES,	{4, 0, 0}},
+	{"clear",	DM_TABLE_CLEAR,		{4, 0, 0}},
 };
+/* *INDENT-ON* */
+
+#define ALIGNMENT_V1 sizeof(int)
+#define ALIGNMENT 8
+
+/* FIXME Rejig library to record & use errno instead */
+#ifndef DM_EXISTS_FLAG
+#  define DM_EXISTS_FLAG 0x00000004
+#endif

 static void *_align(void *ptr, unsigned int a)
 {
-	register unsigned long align = --a;
+	register unsigned long agn = --a;

-	return (void *) (((unsigned long) ptr + align) & ~align);
+	return (void *) (((unsigned long) ptr + agn) & ~agn);
+}
+
+static int _dm_task_get_driver_version_v1(struct dm_task *dmt, char *version,
+					  size_t size)
+{
+	unsigned int *v;
+
+	if (!dmt->dmi.v1) {
+		version[0] = '\0';
+		return 0;
+	}
+
+	v = dmt->dmi.v1->version;
+	snprintf(version, size, "%u.%u.%u", v[0], v[1], v[2]);
+	return 1;
+}
+
+/* Unmarshall the target info returned from a status call */
+static int _unmarshal_status_v1(struct dm_task *dmt, struct dm_ioctl_v1 *dmi)
+{
+	char *outbuf = (char *) dmi + dmi->data_start;
+	char *outptr = outbuf;
+	int32_t i;
+	struct dm_target_spec_v1 *spec;
+
+	for (i = 0; i < dmi->target_count; i++) {
+		spec = (struct dm_target_spec_v1 *) outptr;
+
+		if (!dm_task_add_target(dmt, spec->sector_start,
+					(uint64_t) spec->length,
+					spec->target_type,
+					outptr + sizeof(*spec)))
+			return 0;
+
+		outptr = outbuf + spec->next;
+	}
+
+	return 1;
+}
+
+static int _dm_format_dev_v1(char *buf, int bufsize, uint32_t dev_major, uint32_t dev_minor)
+{
+	int r;
+
+	if (bufsize < 8)
+		return 0;
+
+	r = snprintf(buf, bufsize, "%03x:%03x", dev_major, dev_minor);
+	if (r < 0 || r > bufsize - 1)
+		return 0;
+
+	return 1;
+}
+
+static int _dm_task_get_info_v1(struct dm_task *dmt, struct dm_info *info)
+{
+	if (!dmt->dmi.v1)
+		return 0;
+
+	memset(info, 0, sizeof(*info));
+
+	info->exists = dmt->dmi.v1->flags & DM_EXISTS_FLAG ? 1 : 0;
+	if (!info->exists)
+		return 1;
+
+	info->suspended = dmt->dmi.v1->flags & DM_SUSPEND_FLAG ? 1 : 0;
+	info->read_only = dmt->dmi.v1->flags & DM_READONLY_FLAG ? 1 : 0;
+	info->target_count = dmt->dmi.v1->target_count;
+	info->open_count = dmt->dmi.v1->open_count;
+	info->event_nr = 0;
+	info->major = MAJOR(dmt->dmi.v1->dev);
+	info->minor = MINOR(dmt->dmi.v1->dev);
+	info->live_table = 1;
+	info->inactive_table = 0;
+
+	return 1;
+}
+
+static const char *_dm_task_get_name_v1(struct dm_task *dmt)
+{
+	return (dmt->dmi.v1->name);
+}
+
+static const char *_dm_task_get_uuid_v1(struct dm_task *dmt)
+{
+	return (dmt->dmi.v1->uuid);
+}
+
+static struct dm_deps *_dm_task_get_deps_v1(struct dm_task *dmt)
+{
+	log_error("deps version 1 no longer supported by libdevmapper");
+	return NULL;
+}
+
+static struct dm_names *_dm_task_get_names_v1(struct dm_task *dmt)
+{
+	return (struct dm_names *) (((void *) dmt->dmi.v1) +
+				    dmt->dmi.v1->data_start);
+}
+
+static void *_add_target_v1(struct target *t, void *out, void *end)
+{
+	void *out_sp = out;
+	struct dm_target_spec_v1 sp;
+	size_t sp_size = sizeof(struct dm_target_spec_v1);
+	int len;
+	const char no_space[] = "Ran out of memory building ioctl parameter";
+
+	out += sp_size;
+	if (out >= end) {
+		log_error(no_space);
+		return NULL;
+	}
+
+	sp.status = 0;
+	sp.sector_start = t->start;
+	sp.length = t->length;
+	strncpy(sp.target_type, t->type, sizeof(sp.target_type));
+
+	len = strlen(t->params);
+
+	if ((out + len + 1) >= end) {
+		log_error(no_space);
+
+		log_error("t->params= '%s'", t->params);
+		return NULL;
+	}
+	strcpy((char *) out, t->params);
+	out += len + 1;
+
+	/* align next block */
+	out = _align(out, ALIGNMENT_V1);
+
+	sp.next = out - out_sp;
+
+	memcpy(out_sp, &sp, sp_size);
+
+	return out;
+}
+
+static struct dm_ioctl_v1 *_flatten_v1(struct dm_task *dmt)
+{
+	const size_t min_size = 16 * 1024;
+	const int (*version)[3];
+
+	struct dm_ioctl_v1 *dmi;
+	struct target *t;
+	size_t len = sizeof(struct dm_ioctl_v1);
+	void *b, *e;
+	int count = 0;
+
+	for (t = dmt->head; t; t = t->next) {
+		len += sizeof(struct dm_target_spec_v1);
+		len += strlen(t->params) + 1 + ALIGNMENT_V1;
+		count++;
+	}
+
+	if (count && dmt->newname) {
+		log_error("targets and newname are incompatible");
+		return NULL;
+	}
+
+	if (dmt->newname)
+		len += strlen(dmt->newname) + 1;
+
+	/*
+	 * Give len a minimum size so that we have space to store
+	 * dependencies or status information.
+	 */
+	if (len < min_size)
+		len = min_size;
+
+	if (!(dmi = malloc(len)))
+		return NULL;
+
+	memset(dmi, 0, len);
+
+	version = &_cmd_data_v1[dmt->type].version;
+
+	dmi->version[0] = (*version)[0];
+	dmi->version[1] = (*version)[1];
+	dmi->version[2] = (*version)[2];
+
+	dmi->data_size = len;
+	dmi->data_start = sizeof(struct dm_ioctl_v1);
+
+	if (dmt->dev_name)
+		strncpy(dmi->name, dmt->dev_name, sizeof(dmi->name));
+
+	if (dmt->type == DM_DEVICE_SUSPEND)
+		dmi->flags |= DM_SUSPEND_FLAG;
+	if (dmt->read_only)
+		dmi->flags |= DM_READONLY_FLAG;
+
+	if (dmt->minor >= 0) {
+		if (dmt->major <= 0) {
+			log_error("Missing major number for persistent device");
+			return NULL;
+		}
+		dmi->flags |= DM_PERSISTENT_DEV_FLAG;
+		dmi->dev = MKDEV(dmt->major, dmt->minor);
+	}
+
+	if (dmt->uuid)
+		strncpy(dmi->uuid, dmt->uuid, sizeof(dmi->uuid));
+
+	dmi->target_count = count;
+
+	b = (void *) (dmi + 1);
+	e = (void *) ((char *) dmi + len);
+
+	for (t = dmt->head; t; t = t->next)
+		if (!(b = _add_target_v1(t, b, e)))
+			goto bad;
+
+	if (dmt->newname)
+		strcpy(b, dmt->newname);
+
+	return dmi;
+
+      bad:
+	free(dmi);
+	return NULL;
+}
+
+static int _dm_names_v1(struct dm_ioctl_v1 *dmi)
+{
+	const char *dev_dir = dm_dir();
+	int r = 1, len;
+	const char *name;
+	struct dirent *dirent;
+	DIR *d;
+	struct dm_names *names, *old_names = NULL;
+	void *end = (void *) dmi + dmi->data_size;
+	struct stat buf;
+	char path[PATH_MAX];
+
+	if (!(d = opendir(dev_dir))) {
+		log_error("%s: opendir failed: %s", dev_dir, strerror(errno));
+		return 0;
+	}
+
+	names = (struct dm_names *) ((void *) dmi + dmi->data_start);
+
+	names->dev = 0;		/* Flags no data */
+
+	while ((dirent = readdir(d))) {
+		name = dirent->d_name;
+
+		if (name[0] == '.' || !strcmp(name, "control"))
+			continue;
+
+		if (old_names)
+			old_names->next = (uint32_t) ((void *) names -
+						      (void *) old_names);
+		snprintf(path, sizeof(path), "%s/%s", dev_dir, name);
+		if (stat(path, &buf)) {
+			log_error("%s: stat failed: %s", path, strerror(errno));
+			continue;
+		}
+		if (!S_ISBLK(buf.st_mode))
+			continue;
+		names->dev = (uint64_t) buf.st_rdev;
+		names->next = 0;
+		len = strlen(name);
+		if (((void *) (names + 1) + len + 1) >= end) {
+			log_error("Insufficient buffer space for device list");
+			r = 0;
+			break;
+		}
+
+		strcpy(names->name, name);
+
+		old_names = names;
+		names = _align((void *) ++names + len + 1, ALIGNMENT);
+	}
+
+	if (closedir(d))
+		log_error("%s: closedir failed: %s", dev_dir, strerror(errno));
+
+	return r;
+}
+
+static int _open_control(void)
+{
+	char control[PATH_MAX];
+
+	if (_control_fd != -1)
+		return 1;
+
+	snprintf(control, sizeof(control), "%s/control", dm_dir());
+
+	if ((_control_fd = open(control, O_RDWR)) < 0) {
+		log_error("%s: open failed: %s", control, strerror(errno));
+		log_error("Is device-mapper driver missing from kernel?");
+		return 0;
+	}
+
+	return 1;
+}
+
+static int _dm_task_run_v1(struct dm_task *dmt)
+{
+	struct dm_ioctl_v1 *dmi;
+	unsigned int command;
+
+	dmi = _flatten_v1(dmt);
+	if (!dmi) {
+		log_error("Couldn't create ioctl argument");
+		return 0;
+	}
+
+	if (!_open_control())
+		return 0;
+
+	if ((unsigned) dmt->type >=
+	    (sizeof(_cmd_data_v1) / sizeof(*_cmd_data_v1))) {
+		log_error("Internal error: unknown device-mapper task %d",
+			  dmt->type);
+		goto bad;
+	}
+
+	command = _cmd_data_v1[dmt->type].cmd;
+
+	if (dmt->type == DM_DEVICE_TABLE)
+		dmi->flags |= DM_STATUS_TABLE_FLAG;
+
+	log_debug("dm %s %s %s %s", _cmd_data_v1[dmt->type].name, dmi->name,
+		  dmi->uuid, dmt->newname ? dmt->newname : "");
+	if (dmt->type == DM_DEVICE_LIST) {
+		if (!_dm_names_v1(dmi))
+			goto bad;
+	} else if (ioctl(_control_fd, command, dmi) < 0) {
+		if (_log_suppress)
+			log_verbose("device-mapper ioctl cmd %d failed: %s",
+				    _IOC_NR(command), strerror(errno));
+		else
+			log_error("device-mapper ioctl cmd %d failed: %s",
+				  _IOC_NR(command), strerror(errno));
+		goto bad;
+	}
+
+	switch (dmt->type) {
+	case DM_DEVICE_CREATE:
+		add_dev_node(dmt->dev_name, MAJOR(dmi->dev), MINOR(dmi->dev));
+		break;
+
+	case DM_DEVICE_REMOVE:
+		rm_dev_node(dmt->dev_name);
+		break;
+
+	case DM_DEVICE_RENAME:
+		rename_dev_node(dmt->dev_name, dmt->newname);
+		break;
+
+	case DM_DEVICE_STATUS:
+	case DM_DEVICE_TABLE:
+		if (!_unmarshal_status_v1(dmt, dmi))
+			goto bad;
+		break;
+
+	case DM_DEVICE_SUSPEND:
+	case DM_DEVICE_RESUME:
+		dmt->type = DM_DEVICE_INFO;
+		if (!dm_task_run(dmt))
+			goto bad;
+		free(dmi);	/* We'll use what info returned */
+		return 1;
+	}
+
+	dmt->dmi.v1 = dmi;
+	return 1;
+
+      bad:
+	free(dmi);
+	return 0;
 }

 void dm_task_destroy(struct dm_task *dmt)
@@ -77,8 +477,8 @@ void dm_task_destroy(struct dm_task *dmt)
 	if (dmt->newname)
 		free(dmt->newname);

-	if (dmt->dmi)
-		free(dmt->dmi);
+	if (dmt->dmi.v4)
+		free(dmt->dmi.v4);

 	if (dmt->uuid)
 		free(dmt->uuid);
@@ -90,14 +490,81 @@ int dm_task_get_driver_version(struct dm_task *dmt, char *version, size_t size)
 {
 	unsigned int *v;

-	if (!dmt->dmi)
-		return 0;
+	if (_dm_version == 1)
+		return _dm_task_get_driver_version_v1(dmt, version, size);

-	v = dmt->dmi->version;
+	if (!dmt->dmi.v4) {
+		version[0] = '\0';
+		return 0;
+	}
+
+	v = dmt->dmi.v4->version;
 	snprintf(version, size, "%u.%u.%u", v[0], v[1], v[2]);
 	return 1;
 }

+static int _check_version(char *version, size_t size, int log_suppress)
+{
+	struct dm_task *task;
+	int r;
+
+	if (!(task = dm_task_create(DM_DEVICE_VERSION))) {
+		log_error("Failed to get device-mapper version");
+		version[0] = '\0';
+		return 0;
+	}
+
+	if (log_suppress)
+		_log_suppress = 1;
+
+	r = dm_task_run(task);
+	dm_task_get_driver_version(task, version, size);
+	dm_task_destroy(task);
+	_log_suppress = 0;
+
+	return r;
+}
+
+/*
+ * Find out device-mapper's major version number the first time 
+ * this is called and whether or not we support it.
+ */
+int dm_check_version(void)
+{
+	char libversion[64], dmversion[64];
+	const char *compat = "";
+
+	if (_version_checked)
+		return _version_ok;
+
+	_version_checked = 1;
+
+	if (_check_version(dmversion, sizeof(dmversion), _dm_compat))
+		return 1;
+
+	if (!_dm_compat)
+		goto bad;
+
+	log_verbose("device-mapper ioctl protocol version %d failed. "
+		    "Trying protocol version 1.", _dm_version);
+	_dm_version = 1;
+	if (_check_version(dmversion, sizeof(dmversion), 0)) {
+		log_verbose("Using device-mapper ioctl protocol version 1");
+		return 1;
+	}
+
+	compat = "(compat)";
+
+	dm_get_library_version(libversion, sizeof(libversion));
+
+	log_error("Incompatible libdevmapper %s%s and kernel driver %s",
+		  libversion, compat, dmversion);
+
+      bad:
+	_version_ok = 0;
+	return 0;
+}
+
 void *dm_get_next_target(struct dm_task *dmt, void *next,
 			 uint64_t *start, uint64_t *length,
 			 char **target_type, char **params)
@@ -121,55 +588,102 @@ void *dm_get_next_target(struct dm_task *dmt, void *next,
 /* Unmarshall the target info returned from a status call */
 static int _unmarshal_status(struct dm_task *dmt, struct dm_ioctl *dmi)
 {
-	char *outbuf = (char *) dmi + sizeof(struct dm_ioctl);
+	char *outbuf = (char *) dmi + dmi->data_start;
 	char *outptr = outbuf;
-	int i;
+	uint32_t i;
+	struct dm_target_spec *spec;

 	for (i = 0; i < dmi->target_count; i++) {
-		struct dm_target_spec *spec = (struct dm_target_spec *) outptr;
-
-		if (!dm_task_add_target(dmt, spec->sector_start, spec->length,
+		spec = (struct dm_target_spec *) outptr;
+		if (!dm_task_add_target(dmt, spec->sector_start,
+					spec->length,
 					spec->target_type,
 					outptr + sizeof(*spec)))
 			return 0;

-		outptr += sizeof(struct dm_target_spec);
-		outptr += strlen(outptr) + 1;
-		_align(outptr, ALIGNMENT);
+		outptr = outbuf + spec->next;
 	}

 	return 1;
 }

+int dm_format_dev(char *buf, int bufsize, uint32_t dev_major, uint32_t dev_minor)
+{
+	int r;
+
+	if (_dm_version == 1)
+		return _dm_format_dev_v1(buf, bufsize, dev_major, dev_minor);
+
+	if (bufsize < 8)
+		return 0;
+
+	r = snprintf(buf, bufsize, "%03u:%03u", dev_major, dev_minor);
+	if (r < 0 || r > bufsize - 1)
+		return 0;
+
+	return 1;
+}
+
 int dm_task_get_info(struct dm_task *dmt, struct dm_info *info)
 {
-	if (!dmt->dmi)
+	if (_dm_version == 1)
+		return _dm_task_get_info_v1(dmt, info);
+
+	if (!dmt->dmi.v4)
 		return 0;

 	memset(info, 0, sizeof(*info));

-	info->exists = dmt->dmi->flags & DM_EXISTS_FLAG ? 1 : 0;
+	info->exists = dmt->dmi.v4->flags & DM_EXISTS_FLAG ? 1 : 0;
 	if (!info->exists)
 		return 1;

-	info->suspended = dmt->dmi->flags & DM_SUSPEND_FLAG ? 1 : 0;
-	info->read_only = dmt->dmi->flags & DM_READONLY_FLAG ? 1 : 0;
-	info->target_count = dmt->dmi->target_count;
-	info->open_count = dmt->dmi->open_count;
-	info->major = MAJOR(dmt->dmi->dev);
-	info->minor = MINOR(dmt->dmi->dev);
+	info->suspended = dmt->dmi.v4->flags & DM_SUSPEND_FLAG ? 1 : 0;
+	info->read_only = dmt->dmi.v4->flags & DM_READONLY_FLAG ? 1 : 0;
+	info->live_table = dmt->dmi.v4->flags & DM_ACTIVE_PRESENT_FLAG ? 1 : 0;
+	info->inactive_table = dmt->dmi.v4->flags & DM_INACTIVE_PRESENT_FLAG ?
+	    1 : 0;
+	info->target_count = dmt->dmi.v4->target_count;
+	info->open_count = dmt->dmi.v4->open_count;
+	info->event_nr = dmt->dmi.v4->event_nr;
+	info->major = MAJOR(dmt->dmi.v4->dev);
+	info->minor = MINOR(dmt->dmi.v4->dev);

 	return 1;
 }

+const char *dm_task_get_name(struct dm_task *dmt)
+{
+	if (_dm_version == 1)
+		return _dm_task_get_name_v1(dmt);
+
+	return (dmt->dmi.v4->name);
+}
+
 const char *dm_task_get_uuid(struct dm_task *dmt)
 {
-	return (dmt->dmi->uuid);
+	if (_dm_version == 1)
+		return _dm_task_get_uuid_v1(dmt);
+
+	return (dmt->dmi.v4->uuid);
 }

 struct dm_deps *dm_task_get_deps(struct dm_task *dmt)
 {
-	return (struct dm_deps *) (((void *) dmt->dmi) + dmt->dmi->data_start);
+	if (_dm_version == 1)
+		return _dm_task_get_deps_v1(dmt);
+
+	return (struct dm_deps *) (((void *) dmt->dmi.v4) +
+				   dmt->dmi.v4->data_start);
+}
+
+struct dm_names *dm_task_get_names(struct dm_task *dmt)
+{
+	if (_dm_version == 1)
+		return _dm_task_get_names_v1(dmt);
+
+	return (struct dm_names *) (((void *) dmt->dmi.v4) +
+				    dmt->dmi.v4->data_start);
 }

 int dm_task_set_ro(struct dm_task *dmt)
@@ -188,6 +702,13 @@ int dm_task_set_newname(struct dm_task *dmt, const char *newname)
 	return 1;
 }

+int dm_task_set_event_nr(struct dm_task *dmt, uint32_t event_nr)
+{
+	dmt->event_nr = event_nr;
+
+	return 1;
+}
+
 struct target *create_target(uint64_t start, uint64_t len, const char *type,
 			     const char *params)
 {
@@ -225,10 +746,11 @@ static void *_add_target(struct target *t, void *out, void *end)
 {
 	void *out_sp = out;
 	struct dm_target_spec sp;
+	size_t sp_size = sizeof(struct dm_target_spec);
 	int len;
 	const char no_space[] = "Ran out of memory building ioctl parameter";

-	out += sizeof(struct dm_target_spec);
+	out += sp_size;
 	if (out >= end) {
 		log_error(no_space);
 		return NULL;
@@ -254,7 +776,7 @@ static void *_add_target(struct target *t, void *out, void *end)
 	out = _align(out, ALIGNMENT);

 	sp.next = out - out_sp;
-	memcpy(out_sp, &sp, sizeof(sp));
+	memcpy(out_sp, &sp, sp_size);

 	return out;
 }
@@ -262,6 +784,7 @@ static void *_add_target(struct target *t, void *out, void *end)
 static struct dm_ioctl *_flatten(struct dm_task *dmt)
 {
 	const size_t min_size = 16 * 1024;
+	const int (*version)[3];

 	struct dm_ioctl *dmi;
 	struct target *t;
@@ -295,9 +818,12 @@ static struct dm_ioctl *_flatten(struct dm_task *dmt)

 	memset(dmi, 0, len);

-	dmi->version[0] = _cmd_data[dmt->type].version[0];
-	dmi->version[1] = _cmd_data[dmt->type].version[1];
-	dmi->version[2] = _cmd_data[dmt->type].version[2];
+	version = &_cmd_data_v4[dmt->type].version;
+
+	dmi->version[0] = (*version)[0];
+	dmi->version[1] = (*version)[1];
+	dmi->version[2] = (*version)[2];
+
 	dmi->data_size = len;
 	dmi->data_start = sizeof(struct dm_ioctl);

@@ -310,14 +836,19 @@ static struct dm_ioctl *_flatten(struct dm_task *dmt)
 		dmi->flags |= DM_READONLY_FLAG;

 	if (dmt->minor >= 0) {
+		if (dmt->major <= 0) {
+			log_error("Missing major number for persistent device");
+			return NULL;
+		}
 		dmi->flags |= DM_PERSISTENT_DEV_FLAG;
-		dmi->dev = MKDEV(0, dmt->minor);
+		dmi->dev = MKDEV(dmt->major, dmt->minor);
 	}

 	if (dmt->uuid)
 		strncpy(dmi->uuid, dmt->uuid, sizeof(dmi->uuid));

 	dmi->target_count = count;
+	dmi->event_nr = dmt->event_nr;

 	b = (void *) (dmi + 1);
 	e = (void *) ((char *) dmi + len);
@@ -336,49 +867,124 @@ static struct dm_ioctl *_flatten(struct dm_task *dmt)
 	return NULL;
 }

-int dm_task_run(struct dm_task *dmt)
+static int _create_and_load_v4(struct dm_task *dmt)
 {
-	int fd = -1;
-	struct dm_ioctl *dmi = _flatten(dmt);
-	unsigned int command;
-	char control[PATH_MAX];
+	struct dm_task *task;
+	int r;

-	if (!dmi) {
-		log_error("Couldn't create ioctl argument");
+	/* Use new task struct to create the device */
+	if (!(task = dm_task_create(DM_DEVICE_CREATE))) {
+		log_error("Failed to create device-mapper task struct");
 		return 0;
 	}

-	snprintf(control, sizeof(control), "%s/control", dm_dir());
-
-	if ((fd = open(control, O_RDWR)) < 0) {
-		log_error("%s: open failed: %s", control, strerror(errno));
-		log_error("Is device-mapper driver missing from kernel?");
-		goto bad;
+	/* Copy across relevant fields */
+	if (dmt->dev_name && !dm_task_set_name(task, dmt->dev_name)) {
+		dm_task_destroy(task);
+		return 0;
 	}

-	if (dmt->type >= (sizeof(_cmd_data) / sizeof(*_cmd_data))) {
+	if (dmt->uuid && !dm_task_set_uuid(task, dmt->uuid)) {
+		dm_task_destroy(task);
+		return 0;
+	}
+
+	task->major = dmt->major;
+	task->minor = dmt->minor;
+
+	r = dm_task_run(task);
+	dm_task_destroy(task);
+	if (!r)
+		return r;
+
+	/* Next load the table */
+	if (!(task = dm_task_create(DM_DEVICE_RELOAD))) {
+		log_error("Failed to create device-mapper task struct");
+		return 0;
+	}
+
+	/* Copy across relevant fields */
+	if (dmt->dev_name && !dm_task_set_name(task, dmt->dev_name)) {
+		dm_task_destroy(task);
+		return 0;
+	}
+
+	task->read_only = dmt->read_only;
+	task->head = dmt->head;
+	task->tail = dmt->tail;
+
+	r = dm_task_run(task);
+
+	task->head = NULL;
+	task->tail = NULL;
+	dm_task_destroy(task);
+	if (!r)
+		return r;
+
+	/* Use the original structure last so the info will be correct */
+	dmt->type = DM_DEVICE_RESUME;
+	dmt->uuid = NULL;
+	free(dmt->uuid);
+
+	r = dm_task_run(dmt);
+
+	return r;
+}
+
+int dm_task_run(struct dm_task *dmt)
+{
+	struct dm_ioctl *dmi;
+	unsigned int command;
+
+	if (_dm_version == 1)
+		return _dm_task_run_v1(dmt);
+
+	if ((unsigned) dmt->type >=
+	    (sizeof(_cmd_data_v4) / sizeof(*_cmd_data_v4))) {
 		log_error("Internal error: unknown device-mapper task %d",
 			  dmt->type);
 		goto bad;
 	}

-	command = _cmd_data[dmt->type].cmd;
+	command = _cmd_data_v4[dmt->type].cmd;
+
+	/* Old-style creation had a table supplied */
+	if (dmt->type == DM_DEVICE_CREATE && dmt->head)
+		return _create_and_load_v4(dmt);
+
+	if (!_open_control())
+		return 0;
+
+	dmi = _flatten(dmt);
+	if (!dmi) {
+		log_error("Couldn't create ioctl argument");
+		return 0;
+	}

 	if (dmt->type == DM_DEVICE_TABLE)
 		dmi->flags |= DM_STATUS_TABLE_FLAG;

-
-	log_debug("dm %s %s %s %s", _cmd_data[dmt->type].name, dmi->name,
+	dmi->flags |= DM_EXISTS_FLAG;	/* FIXME */
+	log_debug("dm %s %s %s %s", _cmd_data_v4[dmt->type].name, dmi->name,
 		  dmi->uuid, dmt->newname ? dmt->newname : "");
-	if (ioctl(fd, command, dmi) < 0) {
-		log_error("device-mapper ioctl cmd %d failed: %s",
-			  _IOC_NR(command), strerror(errno));
+	if (ioctl(_control_fd, command, dmi) < 0) {
+		if (errno == ENXIO && dmt->type == DM_DEVICE_INFO) {
+			dmi->flags &= ~DM_EXISTS_FLAG;	/* FIXME */
+			goto ignore_error;
+		}
+		if (_log_suppress)
+			log_verbose("device-mapper ioctl cmd %d failed: %s",
+				    _IOC_NR(command), strerror(errno));
+		else
+			log_error("device-mapper ioctl cmd %d failed: %s",
+				  _IOC_NR(command), strerror(errno));
 		goto bad;
 	}

+      ignore_error:
 	switch (dmt->type) {
 	case DM_DEVICE_CREATE:
-		add_dev_node(dmt->dev_name, dmi->dev);
+		add_dev_node(dmt->dev_name, MAJOR(dmi->dev), MINOR(dmi->dev));
 		break;

 	case DM_DEVICE_REMOVE:
@@ -391,18 +997,35 @@ int dm_task_run(struct dm_task *dmt)

 	case DM_DEVICE_STATUS:
 	case DM_DEVICE_TABLE:
+	case DM_DEVICE_WAITEVENT:
 		if (!_unmarshal_status(dmt, dmi))
 			goto bad;
 		break;
 	}

-	dmt->dmi = dmi;
-	close(fd);
+	dmt->dmi.v4 = dmi;
 	return 1;

      bad:
 	free(dmi);
-	if (fd >= 0)
-		close(fd);
 	return 0;
 }
+
+void dm_lib_release(void)
+{
+	if (_control_fd != -1) {
+		close(_control_fd);
+		_control_fd = -1;
+	}
+	update_devs();
+}
+
+void dm_lib_exit(void)
+{
+	if (_control_fd != -1) {
+		close(_control_fd);
+		_control_fd = -1;
+	}
+	_version_ok = 1;
+	_version_checked = 0;
+}
--- a/libdm/ioctl/libdm-compat.h
+++ b/libdm/ioctl/libdm-compat.h
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2001 Sistina Software (UK) Limited.
+ *
+ * This file is released under the LGPL.
+ */
+
+#ifndef _LINUX_LIBDM_COMPAT_H
+#define _LINUX_LIBDM_COMPAT_H
+
+#include <inttypes.h>
+#include <linux/dm-ioctl.h>
+#include <linux/kdev_t.h>
+#include <sys/ioctl.h>
+
+struct dm_task;
+struct dm_info;
+
+/*
+ * Old versions of structures for backwards compatibility.
+ */
+
+struct dm_ioctl_v1 {
+	uint32_t version[3];	/* in/out */
+	uint32_t data_size;	/* total size of data passed in
+				 * including this struct */
+
+	uint32_t data_start;	/* offset to start of data
+				 * relative to start of this struct */
+
+	int32_t target_count;	/* in/out */
+	int32_t open_count;	/* out */
+	uint32_t flags;		/* in/out */
+
+	__kernel_dev_t dev;	/* in/out */
+
+	char name[DM_NAME_LEN];	/* device name */
+	char uuid[DM_UUID_LEN];	/* unique identifier for
+				 * the block device */
+};
+
+struct dm_target_spec_v1 {
+	int32_t status;		/* used when reading from kernel only */
+	uint64_t sector_start;
+	uint32_t length;
+	uint32_t next;
+
+	char target_type[DM_MAX_TYPE_NAME];
+
+};
+
+struct dm_target_deps_v1 {
+	uint32_t count;
+
+	__kernel_dev_t dev[0];	/* out */
+};
+
+enum {
+	/* Top level cmds */
+	DM_VERSION_CMD_V1 = 0,
+	DM_REMOVE_ALL_CMD_V1,
+
+	/* device level cmds */
+	DM_DEV_CREATE_CMD_V1,
+	DM_DEV_REMOVE_CMD_V1,
+	DM_DEV_RELOAD_CMD_V1,
+	DM_DEV_RENAME_CMD_V1,
+	DM_DEV_SUSPEND_CMD_V1,
+	DM_DEV_DEPS_CMD_V1,
+	DM_DEV_STATUS_CMD_V1,
+
+	/* target level cmds */
+	DM_TARGET_STATUS_CMD_V1,
+	DM_TARGET_WAIT_CMD_V1,
+};
+
+#define DM_VERSION_V1       _IOWR(DM_IOCTL, DM_VERSION_CMD_V1, struct dm_ioctl)
+#define DM_REMOVE_ALL_V1    _IOWR(DM_IOCTL, DM_REMOVE_ALL_CMD_V1, struct dm_ioctl)
+
+#define DM_DEV_CREATE_V1    _IOWR(DM_IOCTL, DM_DEV_CREATE_CMD_V1, struct dm_ioctl)
+#define DM_DEV_REMOVE_V1    _IOWR(DM_IOCTL, DM_DEV_REMOVE_CMD_V1, struct dm_ioctl)
+#define DM_DEV_RELOAD_V1    _IOWR(DM_IOCTL, DM_DEV_RELOAD_CMD_V1, struct dm_ioctl)
+#define DM_DEV_SUSPEND_V1   _IOWR(DM_IOCTL, DM_DEV_SUSPEND_CMD_V1, struct dm_ioctl)
+#define DM_DEV_RENAME_V1    _IOWR(DM_IOCTL, DM_DEV_RENAME_CMD_V1, struct dm_ioctl)
+#define DM_DEV_DEPS_V1      _IOWR(DM_IOCTL, DM_DEV_DEPS_CMD_V1, struct dm_ioctl)
+#define DM_DEV_STATUS_V1    _IOWR(DM_IOCTL, DM_DEV_STATUS_CMD_V1, struct dm_ioctl)
+
+#define DM_TARGET_STATUS_V1 _IOWR(DM_IOCTL, DM_TARGET_STATUS_CMD_V1, struct dm_ioctl)
+#define DM_TARGET_WAIT_V1   _IOWR(DM_IOCTL, DM_TARGET_WAIT_CMD_V1, struct dm_ioctl)
+
+/* *INDENT-OFF* */
+static struct cmd_data _cmd_data_v1[] = {
+        { "create",	DM_DEV_CREATE_V1,	{1, 0, 0} },
+        { "reload",	DM_DEV_RELOAD_V1,	{1, 0, 0} },
+        { "remove",	DM_DEV_REMOVE_V1,	{1, 0, 0} },
+        { "remove_all",	DM_REMOVE_ALL_V1,	{1, 0, 0} },
+        { "suspend",	DM_DEV_SUSPEND_V1,	{1, 0, 0} },
+        { "resume",	DM_DEV_SUSPEND_V1,	{1, 0, 0} },
+        { "info",	DM_DEV_STATUS_V1,	{1, 0, 0} },
+        { "deps",	DM_DEV_DEPS_V1,		{1, 0, 0} },
+        { "rename",	DM_DEV_RENAME_V1,	{1, 0, 0} },
+        { "version",	DM_VERSION_V1,		{1, 0, 0} },
+        { "status",	DM_TARGET_STATUS_V1,	{1, 0, 0} },
+        { "table",	DM_TARGET_STATUS_V1,	{1, 0, 0} },
+        { "waitevent",	DM_TARGET_WAIT_V1,	{1, 0, 0} },
+        { "names",	0,			{4, 0, 0} }
+};
+/* *INDENT-ON* */
+
+#endif
--- a/libdm/ioctl/libdm-targets.h
+++ b/libdm/ioctl/libdm-targets.h
@@ -7,7 +7,10 @@
 #ifndef LIB_DMTARGETS_H
 #define LIB_DMTARGETS_H

-#include "libdevmapper.h"
+#include <inttypes.h>
+
+struct dm_ioctl;
+struct dm_ioctl_v1;

 struct target {
 	uint64_t start;
@@ -25,12 +28,24 @@ struct dm_task {
 	struct target *head, *tail;

 	int read_only;
+	uint32_t event_nr;
+	int major;
 	int minor;
-	struct dm_ioctl *dmi;
+	union {
+		struct dm_ioctl *v4;
+		struct dm_ioctl_v1 *v1;
+	} dmi;
 	char *newname;

 	char *uuid;
 };

-#endif
+struct cmd_data {
+	const char *name;
+	const int cmd;
+	const int version[3];
+};

+int dm_check_version(void);
+
+#endif
--- a/libdm/libdevmapper.h
+++ b/libdm/libdevmapper.h
@@ -29,6 +29,7 @@ typedef void (*dm_log_fn) (int level, const char *file, int line,
 * stderr.
 */
 void dm_log_init(dm_log_fn fn);
+void dm_log_init_verbose(int level);

 enum {
 	DM_DEVICE_CREATE,
@@ -47,7 +48,11 @@ enum {

 	DM_DEVICE_STATUS,
 	DM_DEVICE_TABLE,
-	DM_DEVICE_WAITEVENT
+	DM_DEVICE_WAITEVENT,
+
+	DM_DEVICE_LIST,
+
+	DM_DEVICE_CLEAR
 };

 struct dm_task;
@@ -64,29 +69,43 @@ int dm_task_set_uuid(struct dm_task *dmt, const char *uuid);
 struct dm_info {
 	int exists;
 	int suspended;
-	unsigned int open_count;
-	int major;
-	int minor;		/* minor device number */
+	int live_table;
+	int inactive_table;
+	int32_t open_count;
+	uint32_t event_nr;
+	uint32_t major;
+	uint32_t minor;		/* minor device number */
 	int read_only;		/* 0:read-write; 1:read-only */

-	unsigned int target_count;
+	int32_t target_count;
 };

 struct dm_deps {
-	unsigned int count;
-	__kernel_dev_t device[0];
+	uint32_t count;
+	uint32_t filler;
+	uint64_t device[0];
+};
+
+struct dm_names {
+	uint64_t dev;
+	uint32_t next;		/* Offset to next struct from start of this struct */
+	char name[0];
 };

 int dm_get_library_version(char *version, size_t size);
 int dm_task_get_driver_version(struct dm_task *dmt, char *version, size_t size);
 int dm_task_get_info(struct dm_task *dmt, struct dm_info *dmi);
+const char *dm_task_get_name(struct dm_task *dmt);
 const char *dm_task_get_uuid(struct dm_task *dmt);

 struct dm_deps *dm_task_get_deps(struct dm_task *dmt);
+struct dm_names *dm_task_get_names(struct dm_task *dmt);

 int dm_task_set_ro(struct dm_task *dmt);
 int dm_task_set_newname(struct dm_task *dmt, const char *newname);
 int dm_task_set_minor(struct dm_task *dmt, int minor);
+int dm_task_set_major(struct dm_task *dmt, int major);
+int dm_task_set_event_nr(struct dm_task *dmt, uint32_t event_nr);

 /*
 * Use these to prepare for a create or reload.
@@ -95,6 +114,11 @@ int dm_task_add_target(struct dm_task *dmt,
 		       uint64_t start,
 		       uint64_t size, const char *ttype, const char *params);

+/*
+ * Format major/minor numbers correctly for input to driver
+ */
+int dm_format_dev(char *buf, int bufsize, uint32_t dev_major, uint32_t dev_minor);
+
 /* Use this to retrive target information returned from a STATUS call */
 void *dm_get_next_target(struct dm_task *dmt,
 			 void *next, uint64_t *start, uint64_t *length,
@@ -111,4 +135,8 @@ int dm_task_run(struct dm_task *dmt);
 int dm_set_dev_dir(const char *dir);
 const char *dm_dir(void);

+/* Release library resources */
+void dm_lib_release(void);
+void dm_lib_exit(void);
+
 #endif				/* LIB_DEVICE_MAPPER_H */
--- a/libdm/libdm-common.c
+++ b/libdm/libdm-common.c
@@ -6,25 +6,25 @@

 #include "libdm-targets.h"
 #include "libdm-common.h"
-#include "libdevmapper.h"
+#include "list.h"

 #include <stdio.h>
 #include <stdlib.h>
 #include <stdarg.h>
 #include <string.h>
-#include <unistd.h>
-#include <fcntl.h>
 #include <sys/param.h>
 #include <sys/stat.h>
-#include <sys/types.h>
+#include <unistd.h>
 #include <errno.h>
-#include <linux/kdev_t.h>
 #include <linux/dm-ioctl.h>
+#include <linux/kdev_t.h>

 #define DEV_DIR "/dev/"

 static char _dm_dir[PATH_MAX] = DEV_DIR DM_DIR;

+static int _verbose = 0;
+
 /*
 * Library users can provide their own logging
 * function.
@@ -34,19 +34,22 @@ static void _default_log(int level, const char *file, int line,
 {
 	va_list ap;

-	if (level > _LOG_WARN)
+	if (level > _LOG_WARN && !_verbose)
 		return;

 	va_start(ap, f);

-	if (level == _LOG_WARN)
-		vprintf(f, ap);
-	else
+	if (level < _LOG_WARN)
 		vfprintf(stderr, f, ap);
+	else
+		vprintf(f, ap);

 	va_end(ap);

-	fprintf(stderr, "\n");
+	if (level < _LOG_WARN)
+		fprintf(stderr, "\n");
+	else
+		printf("\n");
 }

 dm_log_fn _log = _default_log;
@@ -56,6 +59,11 @@ void dm_log_init(dm_log_fn fn)
 	_log = fn;
 }

+void dm_log_init_verbose(int level)
+{
+	_verbose = level;
+}
+
 static void _build_dev_path(char *buffer, size_t len, const char *dev_name)
 {
 	/* If there's a /, assume caller knows what they're doing */
@@ -75,6 +83,9 @@ struct dm_task *dm_task_create(int type)
 {
 	struct dm_task *dmt = malloc(sizeof(*dmt));

+	if (!dm_check_version())
+		return NULL;
+
 	if (!dmt) {
 		log_error("dm_task_create: malloc(%d) failed", sizeof(*dmt));
 		return NULL;
@@ -84,6 +95,8 @@ struct dm_task *dm_task_create(int type)

 	dmt->type = type;
 	dmt->minor = -1;
+	dmt->major = -1;
+
 	return dmt;
 }

@@ -137,6 +150,14 @@ int dm_task_set_uuid(struct dm_task *dmt, const char *uuid)
 	return 1;
 }

+int dm_task_set_major(struct dm_task *dmt, int major)
+{
+	dmt->major = major;
+	log_debug("Setting major: %d", dmt->major);
+
+	return 1;
+}
+
 int dm_task_set_minor(struct dm_task *dmt, int minor)
 {
 	dmt->minor = minor;
@@ -163,10 +184,11 @@ int dm_task_add_target(struct dm_task *dmt, uint64_t start, uint64_t size,
 	return 1;
 }

-int add_dev_node(const char *dev_name, dev_t dev)
+static int _add_dev_node(const char *dev_name, uint32_t major, uint32_t minor)
 {
 	char path[PATH_MAX];
 	struct stat info;
+	dev_t dev = MKDEV(major, minor);

 	_build_dev_path(path, sizeof(path), dev_name);

@@ -195,7 +217,7 @@ int add_dev_node(const char *dev_name, dev_t dev)
 	return 1;
 }

-int rename_dev_node(const char *old_name, const char *new_name)
+static int _rename_dev_node(const char *old_name, const char *new_name)
 {
 	char oldpath[PATH_MAX];
 	char newpath[PATH_MAX];
@@ -212,7 +234,7 @@ int rename_dev_node(const char *old_name, const char *new_name)
 		}

 		if (unlink(newpath) < 0) {
-			if (errno == EPERM) {	
+			if (errno == EPERM) {
 				/* devfs, entry has already been renamed */
 				return 1;
 			}
@@ -231,7 +253,7 @@ int rename_dev_node(const char *old_name, const char *new_name)
 	return 1;
 }

-int rm_dev_node(const char *dev_name)
+static int _rm_dev_node(const char *dev_name)
 {
 	char path[PATH_MAX];
 	struct stat info;
@@ -249,6 +271,105 @@ int rm_dev_node(const char *dev_name)
 	return 1;
 }

+typedef enum {
+	NODE_ADD,
+	NODE_DEL,
+	NODE_RENAME
+} node_op_t;
+
+static int _do_node_op(node_op_t type, const char *dev_name, uint32_t major,
+		       uint32_t minor, const char *old_name)
+{
+	switch (type) {
+	case NODE_ADD:
+		return _add_dev_node(dev_name, major, minor);
+	case NODE_DEL:
+		return _rm_dev_node(dev_name);
+	case NODE_RENAME:
+		return _rename_dev_node(old_name, dev_name);
+	}
+
+	return 1;
+}
+
+static LIST_INIT(_node_ops);
+
+struct node_op_parms {
+	struct list list;
+	node_op_t type;
+	char *dev_name;
+	uint32_t major;
+	uint32_t minor;
+	char *old_name;
+	char names[0];
+};
+
+static void _store_str(char **pos, char **ptr, const char *str)
+{
+	strcpy(*pos, str);
+	*ptr = *pos;
+	*pos += strlen(*ptr) + 1;
+}
+
+static int _stack_node_op(node_op_t type, const char *dev_name, uint32_t major,
+			  uint32_t minor, const char *old_name)
+{
+	struct node_op_parms *nop;
+	size_t len = strlen(dev_name) + strlen(old_name) + 2;
+	char *pos;
+
+	if (!(nop = malloc(sizeof(*nop) + len))) {
+		log_error("Insufficient memory to stack mknod operation");
+		return 0;
+	}
+
+	pos = nop->names;
+	nop->type = type;
+	nop->major = major;
+	nop->minor = minor;
+
+	_store_str(&pos, &nop->dev_name, dev_name);
+	_store_str(&pos, &nop->old_name, old_name);
+
+	list_add(&_node_ops, &nop->list);
+
+	return 1;
+}
+
+static void _pop_node_ops(void)
+{
+	struct list *noph, *nopht;
+	struct node_op_parms *nop;
+
+	list_iterate_safe(noph, nopht, &_node_ops) {
+		nop = list_item(noph, struct node_op_parms);
+		_do_node_op(nop->type, nop->dev_name, nop->major, nop->minor,
+			    nop->old_name);
+		list_del(&nop->list);
+		free(nop);
+	}
+}
+
+int add_dev_node(const char *dev_name, uint32_t major, uint32_t minor)
+{
+	return _stack_node_op(NODE_ADD, dev_name, major, minor, "");
+}
+
+int rename_dev_node(const char *old_name, const char *new_name)
+{
+	return _stack_node_op(NODE_RENAME, new_name, 0, 0, old_name);
+}
+
+int rm_dev_node(const char *dev_name)
+{
+	return _stack_node_op(NODE_DEL, dev_name, 0, 0, "");
+}
+
+void update_devs(void)
+{
+	_pop_node_ops();
+}
+
 int dm_set_dev_dir(const char *dir)
 {
 	snprintf(_dm_dir, sizeof(_dm_dir), "%s%s", dir, DM_DIR);
--- a/libdm/libdm-common.h.in
+++ b/libdm/libdm-common.h.in
@@ -7,6 +7,8 @@
 #ifndef LIB_DMCOMMON_H
 #define LIB_DMCOMMON_H

+#include "libdevmapper.h"
+
 #define _LOG_DEBUG 7
 #define _LOG_INFO 6
 #define _LOG_NOTICE 5
@@ -14,7 +16,7 @@
 #define _LOG_ERR 3
 #define _LOG_FATAL 2

-dm_log_fn _log;
+extern dm_log_fn _log;

 #define log_error(msg, x...) _log(_LOG_ERR, __FILE__, __LINE__, msg, ## x)
 #define log_print(msg, x...) _log(_LOG_WARN, __FILE__, __LINE__, msg, ## x)
@@ -23,12 +25,13 @@ dm_log_fn _log;
 #define log_debug(msg, x...) _log(_LOG_DEBUG, __FILE__, __LINE__, msg, ## x)

 struct target *create_target(uint64_t start,
-                             uint64_t len,
-                             const char *type, const char *params);
+			     uint64_t len,
+			     const char *type, const char *params);

-int add_dev_node(const char *dev_name, dev_t dev);
+int add_dev_node(const char *dev_name, uint32_t minor, uint32_t major);
 int rm_dev_node(const char *dev_name);
 int rename_dev_node(const char *old_name, const char *new_name);
+void update_devs(void);

 #define DM_LIB_VERSION @DM_LIB_VERSION@

--- a/make.tmpl.in
+++ b/make.tmpl.in
@@ -27,6 +27,7 @@ SHELL = /bin/sh
 INSTALL = @INSTALL@
 LN_S = @LN_S@
 LIBS = @LIBS@
+CFLAGS = @CFLAGS@

 # Setup directory variables
 prefix = $(DESTDIR)@prefix@
@@ -81,22 +82,6 @@ STRIP=

 DEPS=$(top_srcdir)/make.tmpl Makefile $(INC_LNS)

-ifeq ("@READLINE@", "yes")
-  CFLAGS += -DREADLINE_SUPPORT
-endif
-
-ifeq ("@DEVMAPPER@", "yes")
-  CFLAGS += -DDEVMAPPER_SUPPORT
-endif
-
-ifeq ("@HAVE_RL_COMPLETION_MATCHES@", "yes")
-  CFLAGS += -DHAVE_RL_COMPLETION_MATCHES
-endif
-
-ifeq ("@LVM1@", "internal")
-  CFLAGS += -DLVM1_INTERNAL
-endif
-
 OBJECTS=$(SOURCES:%.c=%.o)

 SUBDIRS.install := $(SUBDIRS:=.install)
@@ -113,7 +98,7 @@ install: all $(SUBDIRS.install)
 $(SUBDIRS):
 	$(MAKE) -C $@

-$(SUBDIRS.install): 
+$(SUBDIRS.install): $(SUBDIRS)
 	$(MAKE) -C $(@:.install=) install

 $(SUBDIRS.clean):
--- a/man/Makefile.in
+++ b/man/Makefile.in
@@ -23,8 +23,8 @@ VPATH = @srcdir@
 MAN5=lvm.conf.5
 MAN8=lvchange.8 lvcreate.8 lvdisplay.8 lvextend.8 lvm.8 lvmchange.8 \
 	lvreduce.8 lvremove.8 lvrename.8 lvs.8 lvscan.8 pvchange.8 \
-	pvcreate.8 pvdisplay.8 pvremove.8 pvs.8 pvscan.8 vgcfgbackup.8 \
-	vgcfgrestore.8 vgchange.8 vgck.8 vgcreate.8 \
+	pvcreate.8 pvdisplay.8 pvmove.8 pvremove.8 pvs.8 pvscan.8 \
+	vgcfgbackup.8 vgcfgrestore.8 vgchange.8 vgck.8 vgcreate.8 \
 	vgconvert.8 vgdisplay.8 vgextend.8 vgmerge.8 vgreduce.8 vgremove.8 \
 	vgrename.8 vgs.8 vgscan.8
 MAN5DIR=${mandir}/man5
--- a/man/lvcreate.8
+++ b/man/lvcreate.8
@@ -31,7 +31,7 @@ the volume group can be extended ( see
 .B vgextend(8)
 ) with other physical volumes or by reducing existing logical volumes
 of this volume group in size ( see
-.B lvreduce(8), e2fsadm(8)
+.B lvreduce(8)
 ).
 .br
 The second form supports the creation of snapshot logical volumes which 
--- a/man/lvreduce.8
+++ b/man/lvreduce.8
@@ -17,9 +17,6 @@ You should therefore ensure that the (eg) filesystem on the volume is
 resized
 .i before
 running lvreduce so that the extents that are to be removed are not in use.
-If the filesystem is ext2 then you can use the 
-.B e2fsadm(8)
-command to both resize the filesystem and the logical volume together.
 .br.
 Shrinking snapshot logical volumes (see
 .B lvcreate(8)
--- a/man/pvmove.8
+++ b/man/pvmove.8
@@ -0,0 +1,51 @@
+.TH PVMOVE 8 "LVM TOOLS" "Sistina Software UK" \" -*- nroff -*-
+.SH NAME
+pvmove \- move physical extents
+.SH SYNOPSIS
+.B pvmove
+[\-d/\-\-debug] [\-h/\-\-help] [\-i/\-\-interval Seconds] [\-v/\-\-verbose]
+[\-n/\-\-name LogicalVolume] SourcePhysicalVolume 
+[DestinationPhysicalVolume[:PE[-PE]...]...]
+.SH DESCRIPTION
+.B pvmove
+allows you to move the allocated physical extents (PEs) on
+.I SourcePhysicalVolume
+to one or more other physical volumes (PVs).
+You can optionally specify a source
+.I LogicalVolume
+in which case only extents used by that LV will be moved to 
+free (or specified) extents on
+.IR DestinationPhysicalVolume (s).
+If no
+.I DestinationPhysicalVolume
+is specifed, the normal allocation rules for the volume group are used.
+
+If \fBpvmove\fP gets interrupted for any reason, it will probably be 
+necessary to run \fBvgcfgrestore\fP to restore the volume group's metadata to
+the state it was before the \fBpvmove\fP began.
+
+\fBpvmove\fP locks the volume group and other LVM2 commands can't access
+the volume group metadata until \fBpvmove\fP has completed.
+
+.SH OPTIONS
+.TP
+.I \-i, \-\-interval Seconds
+Report progress as a percentage at regular intervals.
+.TP
+.I \-n, \-\-name " \fILogicalVolume\fR"
+Move only the extents belonging to
+.I LogicalVolume
+from
+.I SourcePhysicalVolume
+instead of all allocated extents to the destination physical volume(s).
+
+.SH EXAMPLES
+To move all logical extents of any logical volumes on
+.B /dev/hda4
+to free physical extents elsewhere in the volume group, giving verbose
+runtime information, use:
+.sp
+\	pvmove -v /dev/hda4
+
+.SH SEE ALSO
+.BR lvm (8)
--- a/man/vgcfgbackup.8
+++ b/man/vgcfgbackup.8
@@ -14,7 +14,7 @@ vgcfgbackup \- backup volume group descriptor area
 .B vgcfgbackup
 allows you to backup the metadata 
 of your volume groups.
-If you don't name any volume groups pn the command line, all of them 
+If you don't name any volume groups on the command line, all of them 
 will be backed up.  This DOESN'T backup user/system data in logical
 volume(s)!  Backup /etc/lvm regularly too.
 .SH OPTIONS
--- a/man/vgreduce.8
+++ b/man/vgreduce.8
@@ -4,6 +4,7 @@ vgreduce \- reduce a volume group
 .SH SYNOPSIS
 .B vgreduce
 [\-a/\-\-all] [\-A/\-\-autobackup y/n] [\-d/\-\-debug] [\-h/\-?/\-\-help]
+[\-\-removemissing]
 [\-t/\-\-test]
 [\-v/\-\-verbose] VolumeGroupName
 [PhysicalVolumePath...]
@@ -15,6 +16,22 @@ See \fBlvm\fP for common options.
 .TP
 .I \-a, \-\-all
 Removes all empty physical volumes if none are given on command line.
+.TP
+.I \-\-removemissing
+Removes all missing physical volumes from the volume group and makes 
+the volume group consistent again.  
+
+It's a good idea to run this option with --test first to find out what it 
+would remove before running it for real.  
+
+Any logical volumes and dependent snapshots that were partly on the 
+missing disks get removed completely. This includes those parts 
+that lie on disks that are still present.
+
+If your logical volumes spanned several disks including the ones that are
+lost, you might want to try to salvage data first by activating your
+logical volumes with --partial as described in \fBlvm (8)\fP.
+
 .SH SEE ALSO
 .BR lvm (8), 
 .BR vgextend (8)
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Alasdair Kergon	4049c1e480	Backwards compatibility fix for version1 suspend/resume.	2003-07-05 23:20:43 +00:00
Alasdair Kergon	8449314da2	Another sync point - numerous fixes & clean ups.	2003-07-04 22:34:56 +00:00
Alasdair Kergon	63ad057028	Synchronise repository / 2.4.21 support	2003-07-04 19:38:49 +00:00
Alasdair Kergon	e720464330	Support for v4 interface	2003-07-01 21:20:58 +00:00
Alasdair Kergon	24036afef9	move functions	2003-05-06 12:22:24 +00:00
Alasdair Kergon	c78fa1a1bc	remove global pvmove lock & poll for completion	2003-05-06 12:20:11 +00:00
Alasdair Kergon	faa8b9022c	Check for locked LVs/pvmoves.	2003-05-06 12:14:36 +00:00
Alasdair Kergon	729bafef7a	unsigned	2003-05-06 12:13:19 +00:00
Alasdair Kergon	590b028632	Prevent renaming active VGs for now.	2003-05-06 12:11:46 +00:00
Alasdair Kergon	8150d00f36	Don't process locked LVs	2003-05-06 12:10:18 +00:00
Alasdair Kergon	060065926f	Store argv	2003-05-06 12:09:28 +00:00
Alasdair Kergon	70babe8a28	--abort --background	2003-05-06 12:08:58 +00:00
Alasdair Kergon	c36e09664f	move fields	2003-05-06 12:06:02 +00:00
Alasdair Kergon	a9672246f3	reset_locking()	2003-05-06 12:03:13 +00:00
Alasdair Kergon	ff571884e9	Move fields.	2003-05-06 12:02:36 +00:00
Alasdair Kergon	475138bceb	list_next	2003-05-06 12:01:13 +00:00
Alasdair Kergon	4a8af199c2	Add argv	2003-05-06 12:00:51 +00:00
Alasdair Kergon	bdabf5db72	Distinguish between visible & top level devices.	2003-05-06 12:00:29 +00:00
Alasdair Kergon	6a5f21b34e	Missing 'make install' dependency.	2003-05-06 11:58:55 +00:00
Alasdair Kergon	d608be103c	Update	2003-04-30 16:49:27 +00:00
Alasdair Kergon	374bb5d18a	Don't move snapshots	2003-04-30 15:58:09 +00:00
Alasdair Kergon	031d6c25ff	Add pvmove	2003-04-30 15:28:17 +00:00
Alasdair Kergon	223fb7b075	add region size & interval	2003-04-30 15:27:48 +00:00
Alasdair Kergon	a746741971	configurable region size	2003-04-30 15:26:54 +00:00
Alasdair Kergon	120faf2a58	pvmove support	2003-04-30 15:26:25 +00:00
Alasdair Kergon	990bca0dc6	use pvmove flag	2003-04-30 15:25:34 +00:00
Alasdair Kergon	3406472db7	Add mirror.c	2003-04-30 15:24:49 +00:00
Alasdair Kergon	1bd733c9f6	Outline pvmove man page	2003-04-30 15:24:08 +00:00
Alasdair Kergon	238c7f982e	basic pvmove support	2003-04-30 15:23:43 +00:00
Alasdair Kergon	fcb81147cb	pvmove flag	2003-04-30 15:22:52 +00:00
Alasdair Kergon	1915b73783	mirror type	2003-04-30 15:22:36 +00:00
Alasdair Kergon	ee79e621fb	mirror display type	2003-04-30 15:21:43 +00:00
Alasdair Kergon	d203275a3b	Add comment	2003-04-30 15:21:10 +00:00
Alasdair Kergon	9e8a996222	Up interface to major version number 4.	2003-04-30 13:48:53 +00:00
Alasdair Kergon	0126b0b3ed	Up interface to major version number 4.	2003-04-29 22:52:11 +00:00
Alasdair Kergon	458928612c	Display event number.	2003-04-29 11:34:40 +00:00
Alasdair Kergon	e33f88e28d	Event number support.	2003-04-29 11:34:23 +00:00
Alasdair Kergon	be570bbf9e	Try alternative syncs if BLKFLSBUF fails.	2003-04-28 16:20:39 +00:00
Alasdair Kergon	f59b4be110	Extra metadata-reading debug message.	2003-04-28 12:18:53 +00:00
Alasdair Kergon	37336e41be	Revert to data_start	2003-04-28 11:55:58 +00:00
Alasdair Kergon	d24a1a3f0a	Version 1.95.17 (new <PV>:<PE range list> allocation restriction feature).	2003-04-24 22:52:14 +00:00
Alasdair Kergon	f7258955bd	Update segment area length when merging consecutive segments.	2003-04-24 22:46:47 +00:00
Alasdair Kergon	2a1eae5d6f	o Metadata area struct change. o Support physical extent restrictions on PV lists for allocations e.g. lvcreate -l 200 vg1 /dev/sda1:100-199:300-399	2003-04-24 22:23:24 +00:00
Alasdair Kergon	50ee0a4adb	Stop more gracefully when in test mode.	2003-04-24 22:13:48 +00:00
Alasdair Kergon	955a26584e	stripe filler parameter	2003-04-24 22:10:56 +00:00
Alasdair Kergon	1d3e407c8f	o Rejig activation code device dependencies to make things a bit more robust and further reduce the number of ioctl calls made. o Metadata area struct change. o Make config file accessible to activation functions & get stripe_filler from it. o Allow kernel to return snapshot status as a fraction or a percentage.	2003-04-24 22:09:13 +00:00
Alasdair Kergon	cb809c4596	indent	2003-04-24 22:00:29 +00:00
Alasdair Kergon	53bbe2888e	fix optind after last change to it	2003-04-24 21:59:42 +00:00
Alasdair Kergon	7246f476a5	Add pool_strndup	2003-04-24 21:58:34 +00:00
Alasdair Kergon	0785d1c390	DM_EXISTS_FLAG replaced by ENXIO	2003-04-24 16:08:18 +00:00
Alasdair Kergon	85d2c49d14	Some ioctl code tidying: removing duplicate internal buffers; making bounds checks clearer (incl. variable renaming); using a flag to indicate when output data doesn't fit into supplied buffer instead of returning an error etc.	2003-04-22 21:22:04 +00:00
Alasdair Kergon	8b77d62b7f	Improve message for pvcreate of empty device.	2003-04-22 16:09:11 +00:00
Alasdair Kergon	373058a32a	Improve build robustness.	2003-04-15 13:24:42 +00:00
Alasdair Kergon	e6293c2c8c	Abort if any filter creation fails.	2003-04-15 13:22:43 +00:00
Alasdair Kergon	eff181c959	Cope with intentionally missing /proc.	2003-04-15 13:21:38 +00:00
Alasdair Kergon	54752c2305	Support snapshot status fraction.	2003-04-15 13:20:16 +00:00
Alasdair Kergon	b4753c044f	Display read-only state.	2003-04-15 12:30:44 +00:00
Alasdair Kergon	26493424ae	alignment fixes	2003-04-08 21:20:31 +00:00
Alasdair Kergon	0282fd1332	Add major arg	2003-04-04 13:22:58 +00:00
Alasdair Kergon	b9a019a08b	Allow for specification of major number as well as minor.	2003-04-02 19:14:43 +00:00
Alasdair Kergon	66f6a0e687	size_t tidying	2003-04-02 19:11:23 +00:00
Alasdair Kergon	2dd1b9f97d	Allow device major to be set too.	2003-04-02 19:03:00 +00:00
Alasdair Kergon	89615f3045	Reinstate lost vg_write() in lvchange --permission.	2003-04-02 13:01:04 +00:00
Alasdair Kergon	7e46192f67	Proposed changes to the ioctl interface to fix alignment issues on some architectures and specify an explicit width for every numeric field.	2003-03-28 18:58:59 +00:00
Alasdair Kergon	e78d985cdf	Avoid report segfault with non-partial inconsistent VG.	2003-03-24 18:22:48 +00:00
Alasdair Kergon	e8c4bf56fe	Tidy various pre-processing incl. making libdl optional.	2003-03-24 18:08:53 +00:00
Alasdair Kergon	e6aa7d323d	Fix incomplete munmap. (pjc)	2003-03-20 14:29:28 +00:00
Alasdair Kergon	fca8e25929	Fix typo.	2003-03-03 12:57:27 +00:00
Joe Thornber	8e8ac286b4	HAT_CHAR and DOLLAR_CHAR were defined to the same value !	2003-02-20 14:53:56 +00:00
Alasdair Kergon	7d9770b9a2	Fix table output bug in last commit.	2003-02-20 13:30:03 +00:00
Andres Salomon	1996230460	Update packages.	2003-02-16 22:12:28 +00:00
Alasdair Kergon	de7897a864	LV name validation	2003-02-03 20:09:58 +00:00
Alasdair Kergon	e2884dcdb7	Identifiers may now start with digits etc.	2003-02-03 20:08:45 +00:00
Alasdair Kergon	544a53a42b	Allow strings in single quotes too	2003-01-28 17:20:11 +00:00
Alasdair Kergon	2e4787bfc8	Treat 'section{' as equivalent to 'section {'	2003-01-28 16:07:04 +00:00
Alasdair Kergon	1829eeb171	merge back accidentally overwritten r1.2 change	2003-01-25 13:34:35 +00:00
Alasdair Kergon	c7488e3c4a	Prepare for ioctl version number change.	2003-01-21 21:27:36 +00:00
Alasdair Kergon	3bf9606383	Allow optional verbose logging.	2003-01-21 21:25:51 +00:00
Alasdair Kergon	4f43f18f0a	Allow optional verbose logging	2003-01-21 21:25:11 +00:00
Alasdair Kergon	5b7f197397	Add --enable-debug --disable-compat	2003-01-21 21:22:55 +00:00
Alasdair Kergon	018141c97f	Indicate full (dropped) snapshot.	2003-01-21 18:50:50 +00:00
Alasdair Kergon	4d7813e57c	vgreduce --removemissing to remove missing PVs & deps & make VG consistent	2003-01-17 21:04:26 +00:00
Alasdair Kergon	605c60208f	Add success message; validate given VG name.	2003-01-17 21:02:04 +00:00
Alasdair Kergon	884fafcc30	Activation commands now return success in test mode.	2003-01-17 20:16:23 +00:00
Alasdair Kergon	56baa90320	Update	2003-01-10 22:51:18 +00:00
Alasdair Kergon	6bb20ee09e	Fix (rare) cache bug on machines with large /dev directories.	2003-01-10 19:14:01 +00:00
Alasdair Kergon	541356430c	Fix segfault in uuid display (substitution missed during bulk change)	2003-01-09 19:35:17 +00:00