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Commit Graph

3637 Commits

Author SHA1 Message Date
Petr Rockai
0e867038da Allow LV suspend while --ignorelockingfailure is in force. 2009-08-02 21:03:09 +00:00
Petr Rockai
e516e0708c Update synopsis in lvconvert manpage to mention --repair. 2009-08-02 21:01:51 +00:00
Mike Snitzer
098c16c9df Fix error handling of device-related stat() calls to be ENOENT aware.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2009-08-01 17:14:52 +00:00
Mike Snitzer
e92d56a94d Retrieve MD sysfs attributes for MD partitions
Rename private _primary_dev() to a public get_primary_dev() and reuse it
to allow retrieval of the MD sysfs attributes (raid level, etc) for MD
partitions.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2009-08-01 17:11:02 +00:00
Mike Snitzer
bb2a46b218 Improve ability to lookup primary device associated with a partition
Improve lib/device/device.c:_primary_dev()'s ability to look up the
primary device associated with all partitions; including blkext
(e.g. partitions directly on MD).  The same will also work for obscure
sysfs paths; e.g.: paths with mangled names like the HP cciss driver
uses: /sys/block/cciss!c0d0/cciss!c0d0p1/

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2009-08-01 17:09:48 +00:00
Mike Snitzer
2aabcc1c1c Add devices/data_alignment_detection to lvm.conf.
Adds 'data_alignment_detection' config option to the devices section of
lvm.conf.  If your kernel provides topology information in sysfs (linux
>= 2.6.31) for the Physical Volume, the start of data area will be
aligned on a multiple of the ’minimum_io_size’ or ’optimal_io_size’
exposed in sysfs.

minimum_io_size is used if optimal_io_size is undefined (0).  If both
md_chunk_alignment and data_alignment_detection are enabled the result
of data_alignment_detection is used.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2009-08-01 17:08:43 +00:00
Mike Snitzer
57b660356e Add devices/data_alignment_offset_detection to lvm.conf.
If the pvcreate --dataalignmentoffset option is not specified the start
of a PV's aligned data area will be shifted by the associated
'alignment_offset' exposed in sysfs (unless
devices/data_alignment_offset_detection is disabled in lvm.conf).

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2009-08-01 17:07:36 +00:00
Alasdair Kergon
70c0c29145 dummy makefile for now to keep builds happy 2009-07-31 18:41:19 +00:00
Alasdair Kergon
bd90c6b2c2 Set cookies in activation code and wait for udev to complete processing. 2009-07-31 18:30:31 +00:00
Alasdair Kergon
2c0dfdf839 Add udevcomplete and --noudevwait to dmsetup. 2009-07-31 17:51:45 +00:00
Alasdair Kergon
b634751cc4 another fixme 2009-07-31 16:57:06 +00:00
Alasdair Kergon
4d8c4ea7e6 Add libdevmapper functions to support synchronisation with udev. 2009-07-31 15:53:11 +00:00
Mike Snitzer
9607eba5c2 Fix compile warnings from recently added log_very_verbose() in _text_pv_write() 2009-07-31 14:23:06 +00:00
Alasdair Kergon
78ce7acc0c configure --udevdir 2009-07-31 13:31:53 +00:00
Alasdair Kergon
a5f46f6a22 add not-yet-working udev options 2009-07-31 11:51:23 +00:00
Alasdair Kergon
5d518f1f18 Prepare for udev synchronisation code. (options don't work yet) 2009-07-31 11:49:53 +00:00
Mike Snitzer
377b6a5843 Disable the "new pe_start policy"
Documented which use-cases force the reinstatement of the nuanced
handling of pe_start.  As soon as orphan PVs are eliminated much of this
will no longer be a concern ('preserve_pe_start' can be reenabled in
.pv_setup).

Added defensive 'if (pv->pe_align)' check in _text_pv_write()'s pe_start
loop.
2009-07-30 21:15:17 +00:00
Mike Snitzer
733bd656b2 Revert 'preserve_pe_start' related code in _text_pv_setup
If pv_setup was given a non-zero pe_start it would short-circuit
establishing a default pv->pe_align.  pv->pe_align=0 would result
in a divide by zero in _mda_setup().  'vgconvert -M2 $vgname' hit this.

.pv_write still properly preserves pe_start if it was supplied.
2009-07-30 18:40:22 +00:00
Mike Snitzer
04b2a4bdcf Add --dataalignmentoffset to pvcreate to shift start of aligned data area
Adds pe_align_offset to 'struct physical_volume'; is initialized with
set_pe_align_offset().  After pe_start is established pe_align_offset is
added to it.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2009-07-30 17:45:28 +00:00
Mike Snitzer
d01a37f597 Preserve pe_start in .pv_setup and .pv_write if pe_start was supplied.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2009-07-30 17:42:33 +00:00
Mike Snitzer
c8a4e489c1 Remove legacy support for preserving pe_start if a PV already has data
areas.

This preserved pe_start would quickly be readjusted to follow the first
mda anyway.  An example use-case that hit this code path is: running
pvcreate on an already existing PV _without_ a preceeding pvremove.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2009-07-30 17:41:01 +00:00
Mike Snitzer
ad273af9c7 Fix _mda_setup() to not check first mda's size before pe_align rounding.
Without this fix rounding the end of the first mda to a pe_align
boundary could silently exceed the disk_size.

Final 'if (start1 + mda_size1 > disk_size)' block serves as a safety
net.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2009-07-30 17:19:31 +00:00
Mike Snitzer
2143b169b1 Formalize pe_start policy as split between .pv_setup and .pv_write.
Document existing pe_start policy.
Fix issue in _text_pv_setup() where existing pe_start case could have
the pv->pe_start set to pv->pe_align even though pe_start shouldn't ever
change.

vgconvert and pvcreate have a facility to preserve the existing start
of the on-disk data extents, known as pe_start.
They indicate this by passing the existing value to the pvsetup function
which must preserve it.

This patch avoids one particular case where the value could get
changed incorrectly now that the alignment settings are configurable.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2009-07-30 17:18:03 +00:00
Christine Caulfield
8b9e515185 Document the -I option to clvmd 2009-07-30 13:32:38 +00:00
Alasdair Kergon
f15a2320bd corosync not cman... 2009-07-30 12:31:45 +00:00
Alasdair Kergon
82c445b01d Fix configure script to handle multiple clvmd selections. 2009-07-30 12:25:42 +00:00
Alasdair Kergon
9b6f239159 Fix lvm2app.pc installation filename. 2009-07-29 19:24:11 +00:00
Dave Wysochanski
e3d384af5b Don't include lvm-version.h in exported liblvm file!
Move include of lvm-version.h into lvm_base.c where it belongs.
2009-07-29 18:38:27 +00:00
Dave Wysochanski
018eceb66b Remove unneeded struct on return from lvm_lv_create_linear.
Results in compile warning.
2009-07-29 16:47:53 +00:00
Alasdair Kergon
3543c9b320 renamed include files 2009-07-29 14:06:31 +00:00
Alasdair Kergon
9e813cc93b Remove pv_t, vg_t & lv_t handles from lib. Only liblvm uses them.
Rename lvm.h to lvm2app.h for now.
2009-07-29 13:26:01 +00:00
Jonathan Earl Brassow
664ef2f993 Remove old custom list macros and replace with libdevmapper list
macros.
2009-07-28 21:14:12 +00:00
Alasdair Kergon
28ae3fe772 post-release 2009-07-28 20:47:40 +00:00
Alasdair Kergon
8762493eb8 \n 2009-07-28 20:41:41 +00:00
Alasdair Kergon
b0928986bf clean up a bit for release 2009-07-28 19:32:26 +00:00
Alasdair Kergon
d49aa42eec pre-release 2009-07-28 17:22:07 +00:00
Alasdair Kergon
29c70fbd86 pre-release 2009-07-28 17:07:48 +00:00
Jonathan Earl Brassow
5c8922b724 Making adjustments to go along with the changes to the kernel.
A patch to the kernel, adding the 'luid' field to dm_ulog_request,
will allow us to properly identify log instances.  We will now
be able to definitively identify which logs are to be removed/
suspended/resumed.  This replaces the old faulty behavior of
assuming the logs were the same if they had the same UUID and
incrementing/decrementing a reference count.
2009-07-28 15:55:50 +00:00
Dave Wysochanski
1df7ef9a05 Add doxygen mainpage tag to lvm.h 2009-07-28 15:33:59 +00:00
Dave Wysochanski
afcd9399a9 Add an open_mode to the vg struct for liblvm - enforce read / write semantics.
For now, a simple way to enforce the read/write semantics is to just save the
open mode of the VG.  If the caller uses lvm_vg_create, the mode is write.
The caller using lvm_vg_open can use either read or write to open the VG.
Once we have this, we enforce the permissions on each API call and don't allow
a caller to modify a VG that has not been opened properly.

This may be better combined with the locking mode, but I view that as future
cleanup, past this initial release.  The intial release should enforce the
basic object semantics though, as described in the lvm.h file.

Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
2009-07-28 15:14:56 +00:00
Dave Wysochanski
d48b3d26c9 Update interactive unit test - fix silly vg_close error. 2009-07-28 14:12:29 +00:00
Dave Wysochanski
e3f0940aae Update interactive unit test for liblvm - add vg_write, general cleanup. 2009-07-28 13:49:28 +00:00
Dave Wysochanski
9ac1af7160 Add lvm_vg_get_seqno, updating lvm.h and unit test.
Adding the ability to get the seqno is important for an application to
determine if something has changed in a VG.  Otherwise, the only way to
know is to open the VG with write permission and hold the handle.
2009-07-28 13:17:04 +00:00
Dave Wysochanski
88e3ced7df Update lvm.h - remove remaining FIXMEs, note limitations of a few functions.
Almost done...
2009-07-28 13:16:40 +00:00
Dave Wysochanski
f4edfec799 Fix lvm.h formatting. 2009-07-28 12:19:58 +00:00
Dave Wysochanski
f7bc94ac3a Add lvm_library_get_version() and update unit tests to display version. 2009-07-28 11:03:28 +00:00
Dave Wysochanski
98418e2b6e Use dm_malloc and dm_free in liblvm instead of malloc/free. 2009-07-28 09:56:48 +00:00
Dave Wysochanski
9c2e73fdd2 Rename lvm_create to lvm_init and lvm_destroy to lvm_quit. 2009-07-28 09:16:18 +00:00
Dave Wysochanski
42a871b3df Update lvm.h to address feeback.
This addresses a a large amount of Alasdair's review.  Subsequent patches
will address remaining issues.
Addressed:
// FIXME Mention that's also required on error.
// FIXME Be consistent in terminology.  It's called "system_dir" then last sentence says "system directory setting".  Is it referring to "system_dir" there or something else?
// FIXME Mention it frees all resources and cannot be used subsequently?
// FIXME What does "any system configuration" mean?
// FIXME Expand on that explanation a bit, now that we know what the other fns look like.
// FIXME Not sure about that - it needs to scan sometimes.  "will not" or "might not" ?
// FIXME: That's a FIXME in the code!!!
// FIXME What does "copied" mean in this context???
// FIXME Say what struct the returned struct dm_list is a list of...
// FIXME "This API" ?  This function creates an object in memory?
// FIXME This function commits the Volume Group object referenced by the VG handle to disk?
// FIXME Where is "Name" defined?  Absolute pathname?

Outstanding:
// FIXME Version function first?  No structs or handles needed for that.
// FIXME Sort out this alignment.  "Set an" directly below "system_dir" looks awful.  Indent differently?  More blank lines?
// FIXME Check how doxygen processes this.  E.g. "return: LVM handle.  You must use lvm_error() to check there were no errors and confirm that the handle is valid for passing to other functions."
// FIXME Find a better name.  lvm_init.
// FIXME Consider renaming according to the new name for lvm_create.
// FIXME Please can we use dm_malloc throughout?
2009-07-28 00:36:58 +00:00
Dave Wysochanski
d4b311970d Add warning to lvm.h stating API development in progress. 2009-07-27 21:13:54 +00:00