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Commit Graph

137 Commits

Author SHA1 Message Date
Alasdair Kergon
e5b836d2d6 Improve detection of external changes affecting internal cache. 2005-03-21 22:40:35 +00:00
Alasdair Kergon
162d85b97b Add 'already in device cache' debug message. 2005-03-21 14:51:49 +00:00
Alasdair Kergon
b9565b406a Cope with new devices appearing by rescanning /dev if a uuid can't be found. 2005-03-08 13:46:17 +00:00
Alasdair Kergon
09a7dce6be Additional device-handling debug messages.
Additional verbosity level -vvvv includes line numbers and backtraces.
Verbose messages now go to stderr not stdout.
Close any stray file descriptors before starting.
Refine partitionable checks for certain device types.
Allow devices/types to override built-ins.
2004-12-10 16:01:35 +00:00
Alasdair Kergon
bd46a496c7 pool debugging 2004-11-23 18:23:23 +00:00
Alasdair Kergon
6606c3ae81 Update copyright notices. 2004-03-30 19:35:44 +00:00
Alasdair Kergon
08c419da66 Don't recurse symlinked dirs such as /dev/fd on 2.6. 2004-02-13 18:55:43 +00:00
Alasdair Kergon
ee8518bd9c lvcreate should close the initialised snapshot device immediately. 2003-11-14 17:55:39 +00:00
Alasdair Kergon
914c97239f Another sync point - numerous fixes & clean ups. 2003-07-04 22:34:56 +00:00
Alasdair Kergon
26e7f2e0c4 Tidy various pre-processing incl. making libdl optional. 2003-03-24 18:08:53 +00:00
Alasdair Kergon
4970ebfb92 o Additional device/filter-level debugging messages + duplicate alias fix
o 32/64-bit size_t fix (pjc)
2003-01-08 16:41:22 +00:00
Alasdair Kergon
4aae68792c When there are device name aliases, choose the "nicest" to display. 2003-01-03 21:11:23 +00:00
Alasdair Kergon
8ef2b021ed Default stripesize 64k & config file setting for it;
Clear many compiler warnings (i386) & associated bugs - hopefully without
introducing too many new bugs:-)  (Same exercise required for other archs.)
Default compilation has optimisation - or else use ./configure --enable-debug
2002-12-19 23:25:55 +00:00
Alasdair Kergon
d1d9800ef1 Refactoring. 2002-11-18 14:01:16 +00:00
Alasdair Kergon
25b733809a Merge with text format branch.
Lots of changes/very little testing so far => there'll be bugs!

Use 'vgcreate -M text' to create a volume group with its metadata stored
in text files.  Text format metadata changes should be reasonably atomic,
with a (basic) automatic recovery mechanism if the system crashes while a
change is in progress.

Add a metadata section to lvm.conf to specify multiple directories if
you want (recommended) to keep multiple copies of the metadata (eg on
different filesystems).

e.g. metadata {
        dirs = ["/etc/lvm/metadata1","/usr/local/lvm/metadata2"]
}

Plenty of refinements still in the pipeline.
2002-04-24 18:20:51 +00:00
Joe Thornber
b00094bdeb o hash_iterate -> hash_iter 2002-02-25 11:54:15 +00:00
Alasdair Kergon
b849de1d18 Fix the device cache to cope reasonably safely with device name changes.
This should be a rare occurrence so the aim is to recover if it's
straightforward to do so, otherwise just to abort the operation.
If people *knowingly* change device names, they should always run vgscan
afterwards.

A few bytes of memory gets leaked inside a pool each time an alias
has to be discarded - it's not worth restructuring the code to reuse it.

More of LVM2 needs updating to pass device objects (or uuids) about
instead of pathnames so that resolution of pathname->object only happens
once per operation.

dev_cache_get() should now always return the *current* device at the path given

dev_name_confirmed() replaces dev_name() whenever it's important to
know that name for the device is still current (ie when opening it).
If the cache doesn't know a current name, the function fails.

dev_open() guarantees that the file descriptor returned is for the dev_t
of the device structure it was passed.
2002-01-24 23:16:19 +00:00
Alasdair Kergon
610c25e8b1 o Remove redundant symlink-handling code.
o When opening device, return error if its cached name is incorrect (eg if
  it's changed since the cache was generated).  This prevents use until
  the cache is rebuilt (eg with vgscan).  Doesn't catch every case.
2002-01-23 18:55:01 +00:00
Alasdair Kergon
fae0c5764f Support --version argument and 'version' shell command. 2002-01-17 16:39:24 +00:00
Joe Thornber
5c83f05e81 o Knock out the "'%s' is not a block device" debug message. 2002-01-16 09:23:28 +00:00
Alasdair Kergon
deb8a3b7c9 Fix function typecasts. 2002-01-15 23:47:56 +00:00
Alasdair Kergon
288adea256 o missing labeller free
o updated vgcfgrestore args
o change _check_for_open_devices only to check devices present in the hash
  table instead of using dev_iter which triggers a full scan even when only
  displaying command line help
2002-01-15 21:28:04 +00:00
Heinz Mauelshagen
3813dd120e Typos in error messages 2001-12-17 11:07:33 +00:00
Joe Thornber
29aa6d5850 o Added dev_open and dev_close functions
o  Changed disk-rep to use these

o  if NDEBUG is not defined the dev_cache will check for open devices on
   teardown.

I was hoping this would speed things up.  But I'm still getting:

reti:/home/joe/sistina/LVM2/tools# time ./lvm vgchange -a n
  Volume group vg0 successfully changed

real    0m5.751s
user    0m0.060s
sys     0m0.070s

even though I have only 1 device with the vg on it passing the filters.
2001-11-14 10:01:52 +00:00
Alasdair Kergon
03a8a07d67 Merge lvreduce & lvextend into lvresize. 2001-11-13 14:17:50 +00:00
Joe Thornber
ac61645c2d o if any pattern rejects a device, and there were no accepts then reject ! 2001-11-12 17:06:33 +00:00
Joe Thornber
1b9fcf48b1 o LGPL list implementation 2001-10-31 12:47:01 +00:00
Joe Thornber
5e610278ad o rfilter now checks all aliases for a match 2001-10-25 14:19:39 +00:00
Joe Thornber
c7f0b573ac o use dev_name(dev) to get the name of a device, this operation is cheap
since it just get's the first alias.
2001-10-25 14:04:18 +00:00
Joe Thornber
890b537974 o added aliases list to struct device. 2001-10-25 11:34:55 +00:00
Alasdair Kergon
4790fce2ad persistent filter & some log message changes 2001-10-23 18:20:27 +00:00
Alasdair Kergon
20a2b71c9c filter integration into tools 2001-10-23 11:50:49 +00:00
Joe Thornber
291ec3b6c0 o Filter for the dev cache that takes values from config file:
devices {

        # first match is final, eg.  /dev/ide/cdrom
		        # get's rejected due to the first pattern

					filter=["r/cdrom/",         # don't touch the music !
							"a/hd[a-d][0-9]+/",
							"a/ide/",
							"a/sd/",
							"a/md/",
							"a|loop/[0-9]+|", # accept devfs style loop back
							"r/loop/",        # and reject old style
							"a/dasd/",
							"a/dac960/",
							"a/nbd/",
							"a/ida/",
							"a/cciss/",
							"a/ubd/",
							"r/.*/"] # reject all others
}


Alasdair this is ready to roll into the tools now.
2001-10-19 18:20:37 +00:00
Alasdair Kergon
2d9133bbbd standardise some log messages 2001-10-10 16:36:32 +00:00
Joe Thornber
43b7b8cf69 o dev_cache_t program works 2001-10-08 13:58:52 +00:00
Joe Thornber
721128e86d o sync 2001-10-08 12:11:33 +00:00
Joe Thornber
8696e06602 o I've moved the dev-cache and dev-io into here since this directory has a
better name.  dev-mgr will be removed at some point.
2001-10-03 12:41:29 +00:00