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Commit Graph

157 Commits

Author SHA1 Message Date
Petr Rockai
b4048242f5 Handle metadata with unknown segment types more gracefully. 2009-10-16 17:41:49 +00:00
Alasdair Kergon
78ad1549a5 Introduce percent_range_t and centralise snapshot full/mirror in-sync checks. 2009-10-01 00:35:29 +00:00
Alasdair Kergon
64a950108c Don't attempt to deactivate an LV if any of its snapshots are in use. 2009-09-29 18:50:28 +00:00
Milan Broz
89a6cdfd4c Return fail if lv_deactivate did not removed device from kernel.
lv_deactivate now returns always success, because tree deactivation
functions (see dm_tree_deactivate_children) always returns success.

Because code should return failure in lv_deactivate at least,
fix it by checking for device existence after real deactivation call.

(After discussion this was prefered solution to dm tree function rewrite
which affects snapshots and mirrors.)
2009-09-29 15:17:54 +00:00
Milan Broz
c1fdeec999 Fix readahead calculation problems.
During vgreduce is failed mirror image replaced with error segment,
this segmant type has always area_count == 0.
Current code expects that there is at least one area with device,
patch fixes it by additional check (fixes segfault during vgreduce).

Also do not calculate readahead in every lv_info call, we only need
to cache PV readahead before activation calls which locks memory.
2009-06-01 12:43:31 +00:00
Alasdair Kergon
25a2e7b80e Pre-release cleanups. 2009-05-21 03:04:52 +00:00
Milan Broz
6ac30c94f2 Fix locking query compatibility with old external locking libraries. 2009-05-20 12:58:03 +00:00
Milan Broz
d396100278 Use readahead of underlying device and not default (smaller) one.
When we are stacking LV over device, which has for some reason
increased read_ahead (e.g. MD RAID), the read_ahead hint
for libdevmapper is wrong (it is zero).

If the calculated read_ahead hint is zero, patch uses read_ahead of underlying device
(if first segment is PV) when setting DM_READ_AHEAD_MINIMUM_FLAG.

Because we are using dev-cache, it also store this value to cache for future use
(if several LVs are over one PV, BLKRAGET is called only once for underlying device.)

This should fix all the reamining problems with readahead mismatch reported
for DM over MD configurations (and similar cases).
2009-05-20 11:09:49 +00:00
Milan Broz
eb91c4eee3 Use suspend with flush when device size was changed during table preload.
This allows online mirror resize, also removes condition to preventing
code to do this.
2009-05-20 09:52:37 +00:00
Milan Broz
fa6dca9f28 Add infrastructure for queriying for remote locks.
Current code, when need to ensure that volume is not
active on remote node, it need to try to exclusive
activate volume.

Patch adds simple clvmd command which queries all nodes
for lock for given resource.

The lock type is returned in reply in text.

(But code currently uses CR and EX modes only.)
2009-05-19 10:38:58 +00:00
Milan Broz
afd9ba98c1 Merge lv_is_displayable and lv_is_visible.
Displayable and visible is the same thing.

volumes_count(vg) is now vg_visible_lvs() and always
returns number of LVs from user perspective.
2009-05-13 21:27:43 +00:00
Milan Broz
59d8429cb3 Introduce lv_set_visible & lv_set_invisible and use lv_is_visible always.
The vg->lv_count parameter now includes always number of visible
logical volumes.

Note that virtual snapshot volume (snapshotX) is never visible,
but it is stored in metadata with visible flag.
2009-05-13 21:26:45 +00:00
Milan Broz
095bbca691 Properly release VG memory pool in activation code and clvmd. 2009-04-10 10:00:04 +00:00
Alasdair Kergon
ed82bfd2ba Attempt cleanup in child before execing new binary in exec_cmd() 2009-02-28 00:54:06 +00:00
Zdenek Kabelac
c8669f6b13 Fixed bug where lvresize option -t was not properly passed to fsadm.
Using argv[] list in exec_cmd() to allow more params for external commands.
Fsadm does not allow checking mounted filesystem.
Fsadm no longer accepts 'any other key' as 'no' answer to y/n.
Fsadm improved handling of command line options.
2009-02-24 15:48:00 +00:00
Peter Rajnoha
3ad47d16ab Fix vgrename using UUID in case there are VGs with the same name. 2008-12-19 14:22:48 +00:00
Peter Rajnoha
b47952641a Added displayable_lvs_in_vg and lv_is_displayable functions to deal with
the counts of visible LVs from user's perspective consistently throughout
the code.
2008-12-04 15:54:26 +00:00
Alasdair Kergon
2c44337bd5 Right, a simple build (without options) is working again. 2008-11-03 22:14:30 +00:00
Alasdair Kergon
cda354087f rename var 2008-09-19 07:12:45 +00:00
Alasdair Kergon
8c5bcdabab Improve the way VGs with PVs missing are handled so manual intervention
is required in fewer circumstances.  (mornfall)
2008-09-19 06:42:00 +00:00
Alasdair Kergon
424dd43e6f Revert assuming precommitted metadata is live when activating (unnecessary). 2008-06-08 11:33:15 +00:00
Alasdair Kergon
e4b34bfad0 When activating, if precommitted metadata is still cached, assume it's live. 2008-06-05 13:06:39 +00:00
Dave Wysochanski
5ca6698f12 Add lv_is_active() to determine whether an lv is active.
Handles non-clustered as well as clustered.  For clustered,
the best we can do is try exclusive local activation.  If this
succeeds, we know it is not active elsewhere in the cluster.
Otherwise, we assume it is active elsewhere.
2008-04-10 21:34:18 +00:00
Milan Broz
5619c629f6 Add detection of clustered mirror log capability.
Currently only check for kernel module presence.
2008-04-07 10:23:47 +00:00
Alasdair Kergon
4e9083db10 Fix mirror log name construction during lvconvert. (2.02.30)
Make monitor_dev_for_events recurse through the stack of LVs.
Clean up some more compiler warnings.
Add mirror names test script.
2008-01-31 12:19:36 +00:00
Alasdair Kergon
67cdbd7e4d Some whitespace tidy-ups. 2008-01-30 14:00:02 +00:00
Alasdair Kergon
0c06de632a pre-release review cleanups 2008-01-17 17:17:09 +00:00
Alasdair Kergon
876003dc44 allow a mirror to contain only one mimage 2008-01-16 19:18:51 +00:00
Petr Rockai
67961c7c10 Add snapshot dmeventd library (enables dmeventd snapshot monitoring). 2008-01-09 15:32:19 +00:00
Alasdair Kergon
a6b22cf317 readahead activation code (but no dm support yet) 2007-11-12 20:51:54 +00:00
Alasdair Kergon
be6845999b Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1. 2007-08-20 20:55:30 +00:00
Jim Meyering
08c9ff434b Add "const" attributes where possible: first cut. 2007-08-07 09:06:05 +00:00
Jonathan Earl Brassow
5efd97f108 lib/activate/activate.c:_lv_activate tries to monitor a device
regardless of whether it was successfully activated.  Now fixed
to only monitor if it was successfully activated.
2007-08-01 20:29:07 +00:00
Dave Wysochanski
13835b5f6c Don't use index and rindex functions marked by SUSv3 as legacy - Jakub Bogusz <qboosh@pld-linux.org> 2007-07-02 11:17:21 +00:00
Petr Rockai
e7ddf4168d Make warnings go to stderr. Change log_warn to that effect, log_print
continues to send messages to stdout.
2007-06-28 17:33:44 +00:00
Alasdair Kergon
1bf5aae913 Change some #include lines to search only standard system directories. 2007-04-27 17:46:16 +00:00
Alasdair Kergon
b45c9f49d0 Fix vgrename active LV check to ignore differing vgids. 2007-03-08 21:08:25 +00:00
Alasdair Kergon
20db8ffcae lvm.static no longer interacts with dmeventd unless explicitly asked to. 2007-01-24 23:43:27 +00:00
Alasdair Kergon
24f4552bbe fix earlier checkin 2007-01-24 22:06:11 +00:00
Alasdair Kergon
57fc4cc0b6 Add field definitions to report help text.
Remove unnecessary cmd arg from target_*monitor_events().
2007-01-24 16:51:24 +00:00
Alasdair Kergon
8a37910d51 register->monitor etc. 2007-01-19 22:21:45 +00:00
Alasdair Kergon
8ef6eb30d9 Report dmeventd mirror monitoring status. 2007-01-12 20:38:30 +00:00
Alasdair Kergon
0ce83a83f0 Fix some activate.c prototypes when compiled without devmapper. 2006-12-20 16:19:01 +00:00
Alasdair Kergon
6c81ed26f0 Add LV column to reports listing kernel modules needed for activation. 2006-10-03 17:55:20 +00:00
Alasdair Kergon
0550c1b618 Move lvm_snprintf into libdevmapper. 2006-08-21 12:54:53 +00:00
Alasdair Kergon
9cd3426d3a Fix missing lockfs on first snapshot creation. 2006-08-08 21:20:00 +00:00
Alasdair Kergon
4aae724656 Fix target_register_events args. 2006-05-25 13:32:26 +00:00
Alasdair Kergon
2293567c8c Fix lvcreate corelog validation.
Add --config for overriding most config file settings from cmdline.
  Quote arguments when printing command line.
  Remove linefeed from 'initialising logging' message.
  Add 'Completed' debug message.
  Don't attempt library exit after reloading config files.
  Always compile with libdevmapper, even if device-mapper is disabled.
2006-05-16 16:48:31 +00:00
Alasdair Kergon
3e3d5d8593 Add --monitor to vgcreate and lvcreate to control dmeventd registration.
Propagate --monitor around cluster.
Filter LCK_NONBLOCK in clvmd lock_vg.
2006-05-12 19:16:48 +00:00
Alasdair Kergon
898e6f8e41 Add mirror_library description to example.conf.
More compile-time cleanup.
2006-05-11 17:58:58 +00:00