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290 Commits

Author SHA1 Message Date
Alasdair Kergon
352a99b95a Use dm_is_dm_major instead of local copy. 
Allow mapped devices to be used as PVs safely.
 2005-10-25 19:08:21 +00:00
Alasdair Kergon
9011aed958 Fix LVM2- prefix changes; export build_dlid. 2005-10-20 21:07:57 +00:00
Alasdair Kergon
03b49fe193 Add 'LVM-' prefix to uuids. 2005-10-19 13:59:18 +00:00
Alasdair Kergon
9fdc84c328 Move deactivation code into libdevmapper. 2005-10-18 12:39:20 +00:00
Alasdair Kergon
619449b4ca some deactivation fixes 2005-10-17 19:06:20 +00:00
Alasdair Kergon
3e8479bdf6 Only one dump_memory. 2005-10-17 18:21:05 +00:00
Alasdair Kergon
f894b4b1b7 Attempt to load missing targets using modprobe. 
Simplify dev_manager_info().
 2005-10-17 18:00:02 +00:00
Alasdair Kergon
2262b32057 Use hash, bitset, malloc, pool from libdevmapper. 2005-10-16 23:03:59 +00:00
Alasdair Kergon
197632009b Move compose_log_line() into mirror directory. 2005-08-10 17:19:46 +00:00
Alasdair Kergon
7b68df96dc fix last checkin 2005-08-04 01:29:18 +00:00
Alasdair Kergon
78a352c2eb Prevent snapshots getting activated in a clustered VG. 2005-08-04 01:27:25 +00:00
Alasdair Kergon
a4be2c013c Separate out _build_dev_string. 2005-08-04 01:15:30 +00:00
Alasdair Kergon
5e947dac48 Various allocation-related pvmove fixes. 2005-06-14 17:54:48 +00:00
Alasdair Kergon
60f13f01d2 Basic support for mirrors. 2005-06-01 16:51:55 +00:00
Alasdair Kergon
15db9fcfbf Reinstate full PV size when removing from VG. 
Support loopfiles for testing.
Complete the pv_segment support.
 2005-05-03 17:28:23 +00:00
Alasdair Kergon
f1379332dc extract compose_log_line 2005-04-17 23:59:04 +00:00
Alasdair Kergon
072893aabd Internal snapshot code restructuring. 2005-04-07 12:39:44 +00:00
Alasdair Kergon
c45a8a2c1c Store snapshot and origin sizes separately. 2005-01-19 17:19:39 +00:00
Alasdair Kergon
e9c761b869 Only ask libdevmapper for open_count when we need it. 2005-01-12 22:58:21 +00:00
Alasdair Kergon
bd46a496c7 pool debugging 2004-11-23 18:23:23 +00:00
Alasdair Kergon
c4ddb31abf Rename old segtypes files to segtype. 2004-09-16 18:40:56 +00:00
Alasdair Kergon
7f64c8e5fa Export dm name build & split functions. 2004-09-15 15:02:36 +00:00
Alasdair Kergon
63aead84ee indent 2004-05-18 21:55:55 +00:00
Alasdair Kergon
e0a86d8c18 Ensure presence of virtual targets before attempting activation. 2004-05-12 20:43:34 +00:00
Alasdair Kergon
369028100b Attempt to fix resizing of snapshot origins. 2004-05-12 20:40:34 +00:00
Alasdair Kergon
224565478c Some basic checking for presence of device-mapper targets. 2004-05-05 18:11:43 +00:00
Alasdair Kergon
4922197a33 Begin to separate out segment types. 2004-05-04 21:25:57 +00:00
Alasdair Kergon
6606c3ae81 Update copyright notices. 2004-03-30 19:35:44 +00:00
Alasdair Kergon
8b07664860 Fix vgmknodes to remove dud /dev/mapper entries 2004-03-30 14:40:03 +00:00
Alasdair Kergon
f09fe0ad0f Rename dev_manager_mknodes -> dev_manager_lv_mknodes etc. 2004-03-30 14:38:57 +00:00
Alasdair Kergon
814643d8a2 rename config file vars & always use / as separator 2004-03-08 18:28:45 +00:00
Alasdair Kergon
c01f85420e Missing include. 2003-11-13 18:47:22 +00:00
Alasdair Kergon
8c0388e487 vgmknodes also creates necessary nodes in /dev/mapper 2003-11-13 14:11:41 +00:00
Alasdair Kergon
f7dd6d8446 The LVM2 part of vgmknodes [still to do the non-devfs device-mapper bit]. 2003-11-12 19:16:48 +00:00
Alasdair Kergon
aa37899857 Extract some common functions. 2003-09-17 20:35:57 +00:00
Alasdair Kergon
b2a849142b Fix read-only snapshot creation. 2003-09-16 16:08:05 +00:00
Alasdair Kergon
4c22730b53 Some tidyups and minor fixes. 2003-08-20 15:48:27 +00:00
Alasdair Kergon
9a90f1aba6 Remove small hard-coded activation target line parameter limit. 2003-08-20 12:53:57 +00:00
Alasdair Kergon
27ab6e0f86 Driver version 1 compatibility fix for snapshots. 2003-07-05 23:24:10 +00:00
Alasdair Kergon
914c97239f Another sync point - numerous fixes & clean ups. 2003-07-04 22:34:56 +00:00
Alasdair Kergon
b9e67d4f46 Distinguish between visible & top level devices. 2003-05-06 12:00:29 +00:00
Alasdair Kergon
10b29b8d2d pvmove support 2003-04-30 15:26:25 +00:00
Alasdair Kergon
a9953411a8 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
446155d94f Support snapshot status fraction. 2003-04-15 13:20:16 +00:00
Alasdair Kergon
27f364af95 Allow for specification of major number as well as minor. 2003-04-02 19:14:43 +00:00
Alasdair Kergon
26e7f2e0c4 Tidy various pre-processing incl. making libdl optional. 2003-03-24 18:08:53 +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
12caf445d4 Remove hard-coded extent_size from snapshot target (field no longer used). 2002-07-17 17:00:54 +00:00
Patrick Caulfield
aefa3c6d82 Get rid of compile warnings on 64bit platforms. 2002-06-07 08:37:07 +00:00
Alasdair Kergon
c826c0d17c Rename; add some FIXMEs. 2002-05-22 14:03:45 +00:00
AJ Lewis
39ed033adb o the _status fxns now take more arguments - this way i don't get the 
preparsed status info, shove it all into a string, and then parse it
   again to get the info back out (which is what i was doing before)
 o basically that's it...i like this *much* better than the previous
   method and i think it makes the _status fxn more flexible if we need
   to use it to get other info out.
 2002-05-10 16:06:06 +00:00
AJ Lewis
1951dba955 o Actually read snapshot percentage from the kernel - what a pain! :) 
o Not sure if the code in dev_manager is really optimal, but it works..
   will look at adjusting it a bit now.
 o I *think* it works right when one snapshot if full but others aren't,
   but I haven't really been able to test it because the full snapshot
   somehow resets itself and weird things start happening to the system...
 2002-05-09 21:17:57 +00:00
Alasdair Kergon
6b4c9ff740 Some partial VG support with format_text. 2002-04-30 17:12:37 +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
Alasdair Kergon
69e8a53ee4 Allow deactivation of final snapshot. 2002-04-16 14:42:20 +00:00
Alasdair Kergon
607bcd61d0 Tidying. 2002-04-03 12:17:55 +00:00
Alasdair Kergon
7bb6856a7e Cope with creation of additional snapshots while active. 
(More work on suspension dependencies still needed.)
 2002-03-27 18:17:43 +00:00
Alasdair Kergon
4bb3eccf2b New-style persistent minor support. 2002-03-26 13:41:37 +00:00
Alasdair Kergon
e04c519896 o read-only device support 
o name/uuid disambiguation
 2002-03-25 18:54:59 +00:00
Alasdair Kergon
9585e50fef Better support for LVs with hyphens in names. 2002-03-19 16:41:44 +00:00
Alasdair Kergon
2ed2a72439 lvrename works on snapshots now 2002-03-18 23:25:50 +00:00
Alasdair Kergon
a76ba817a8 Tie all snapshot (de)activation requests to (de)activation of origin device. 2002-03-18 13:09:27 +00:00
Alasdair Kergon
20ce742691 s/Removing/Unloading/ in messages to reduce confusion 2002-03-15 23:01:59 +00:00
Alasdair Kergon
a69de4919b Cut the number of device-mapper calls. 2002-03-15 22:59:12 +00:00
Alasdair Kergon
14a9cda63b Reduce the number of dm info calls. 2002-03-14 21:17:30 +00:00
Alasdair Kergon
20c5fcf764 Integrate suspend. 2002-03-14 15:36:07 +00:00
Joe Thornber
d8e7d77316 o dev_manager_suspend, untested. 2002-03-14 10:56:09 +00:00
Alasdair Kergon
dd420615d5 Set LV uuid. 2002-03-13 15:11:29 +00:00
Joe Thornber
2ec94d4daf o This should complete the dev_manager alg. Please could people now 
report any activation oddities they see.
 2002-03-11 20:36:04 +00:00
Joe Thornber
323a167b49 o dm->active_list now filled in, ATM this is based on the layer name rather 
than the uuid.
 2002-03-11 11:27:48 +00:00
Joe Thornber
fd6932b18b o Comment out some new code that was preventing pjc activating 
snapshots.  This will go back in when the active_list is working.
 2002-03-11 10:38:16 +00:00
Joe Thornber
5295f36cb4 o knock out the offset for origin targets. 2002-03-08 10:45:01 +00:00
Joe Thornber
4526747997 o Add active_list to dev_manager 
o  Origin layer is only added to snapshots if a snapshot is in the
   active_list.
 2002-03-08 10:41:48 +00:00
Joe Thornber
11d2da4036 o First cut at dev scanning. 
o  Split up _expand_lv
 2002-03-07 17:37:38 +00:00
Joe Thornber
0fe3a2c512 o Add comment describing what we're aiming for with dev_manager. 
o  Remove dev_manager_reactivate, since it'll be the same as activate.

o  Merge the mark, visible and dirty fields into the same flags field.
 2002-03-07 16:48:46 +00:00
Joe Thornber
eea1d6932c o Top level device is now just called <vg>-<lv> (there's no 'top' 
layer appended).

o  Got rid of the unused layer->type field and enum.
 2002-03-07 15:29:31 +00:00
Alasdair Kergon
15c325f06a o Use new LCK_HOLD flag to indicate whether lock should be held on return 
from lock_vol() - otherwise it now attempts to acquire the lock and then
  immediately releases it.
o Extend the id field in struct logical_volume to hold VG uuid + LV uuid
  for format1. This unique lvid can be used directly when calling lock_vol().
o Add the VG uuid to vgcache to make VG uuid lookups possible.  (Another
  step towards using them instead of VG names internally.)
 2002-03-05 20:03:09 +00:00
Alasdair Kergon
2731508b34 Fix activation for VG with more than one LV. 2002-03-04 18:50:34 +00:00
Joe Thornber
d30321a6cf o Bad dependency, meant the origin was always getting activated. 2002-03-04 15:10:30 +00:00
Joe Thornber
3a84c18bdd o I was tearing down device bottom-up instead of top down. Which 
is why lvremove of snapshots wasn't working.
 2002-03-04 14:26:43 +00:00
Joe Thornber
6ed0234393 o point snapshots at origin:real rather than origin:top, and *ping* 
snapshots work.
 2002-03-01 09:07:00 +00:00
Alasdair Kergon
f4cbeaf0ac o Lock mechanism for LV activation 
o #defines for common lock flag combinations
o Try out hyphens instead of colons in device-mapper names - does this
  make messages containing filenames easier to read?
 2002-02-27 12:26:41 +00:00
Joe Thornber
841da63e77 o Format1 wasn't recording the snapshot chunk size properly 
o  Activation of snapshots now works - though the resulting device
   doesn't (pjc ?)

o  text format wasn't setting vg->cmd.
 2002-02-26 16:48:52 +00:00
Joe Thornber
349f09e401 o _build_name was allocating 1 byte too few, which meant the 
terminating zero was falling off at some later point.

o Don't try and iterate from a deleted node in _prune_unmarked.
 2002-02-26 14:44:13 +00:00
Joe Thornber
de6c918392 o Removed old files 
o  rewrote activate.c to use dev-manager, I'm sure these two will merge
   at some point.

o  Rename is broken ATM

o  dev-manager puts the calls through to fs.c for layers that have the
   'visible' flag set.
 2002-02-26 11:49:17 +00:00
Joe Thornber
c15334eb4e o More dev_manager fns. 2002-02-25 16:53:12 +00:00
Joe Thornber
999e584511 o In go the populate functions. 2002-02-25 15:19:53 +00:00
Joe Thornber
fc28b60f9c o More dev_manager work. 2002-02-25 14:46:57 +00:00
Joe Thornber
ca73e23fd0 o Sync with cvs, dev_manager still needs to be wired into activate.c 2002-02-25 12:02:33 +00:00