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25 Commits

Author SHA1 Message Date
Zdenek Kabelac
6b701c3a48 cleanup: dmeventd abstract lvm2cmd interface 
Keep  lvm2cmd  interface hidden inside dmeventd_lvm
and use regular 1/0 return codes, this we may
avoid using lvm2cmd.h in other lvm2 plugins.
 2014-04-18 16:38:51 +02:00
Zdenek Kabelac
589983a257 cleanup: include stdarg.h where needed. 
Avoid dependency on implicit inclusion of stdarg.h with
libdevmapper.h.
 2014-04-18 16:38:50 +02:00
Alasdair G Kergon
7c6526aae2 lvresize: separate validation from action 
Start separating the validation from the action in the basic lvresize
code moved to the library.
Remove incorrect use of command line error codes from lvresize library
functions.  Move errors.h to tools directory to reinforce this,
exporting public versions of the error codes in lvm2cmd.h for dmeventd
plugins to use.
 2013-07-06 03:28:21 +01:00
Zdenek Kabelac
55f42944bd dmeventd: revert back percent to int 
int is perfectly ok here.
 2013-05-30 16:46:58 +02:00
Zdenek Kabelac
e992cb253c dmeventd: use dm_get_status_snapshot() 
Switch to use libdm dm_get_status_snapshot() function for
reading status info.
This fixes bug, where the code was using 32bit integers,
while the snapshot target is able to return 64bit sizes.
However this also means, someone is using >1TB snapshot
cow devices, which is actually very bad idea anyway, since the
perfomance and memory usage in this case is very bad.
 2013-05-27 10:33:06 +02:00
Zdenek Kabelac
286cd2006b cleanup: drop unneeded included header files 
This headers were not resolving anything used for compiled .c files.
Remove unused util.c file.
 2012-08-23 14:37:20 +02:00
Zdenek Kabelac
5e4f234918 Make sure dereferenced words[0] and words[1] are defined 2012-02-13 14:17:04 +00:00
Zdenek Kabelac
1aae627433 Use new dmeventd_lvm2_command function in dmeventd plugins. 
For snapshot, prepare whole command in front into private buffer.
Add also some missing '\n' for syslog messages.
For raid and mirror only convert creation of command line string.
This should avoid any unbound growth of mempool for dm_split_names.
 2011-12-22 16:37:01 +00:00
Petr Rockai
58ea7af08c Fix a bug in dmeventd snapshot monitoring code where the monitoring threshold 
would grow with subsequent snapshot extensions (RHBZ 754198).
 2011-11-21 12:31:18 +00:00
Petr Rockai
6825ae1e28 Remove a redundant (and in some cases, misleading) message about snapshot 
extension, in the snapshot dmeventd plugin. The reporting is done as needed by
the LVM command nowadays.
 2011-10-19 14:31:49 +00:00
Zdenek Kabelac
6b7fe2852a Use dm_snprintf 
and fix differently signed comparation.
 2011-04-08 14:18:40 +00:00
Petr Rockai
228fbb6f84 Avoid flooding syslog with redundant messages when a snapshot is invalidated 
(reported by Corey).
 2011-02-14 14:26:36 +00:00
Zdenek Kabelac
2044eacc7e Add missing fclose 
Fixing resource leak in _umount().

CHECKME: mountpoints with spaces need to be checked
 2010-11-23 21:19:45 +00:00
Petr Rockai
fe9ac4d3f4 Add code to the dmeventd snapshot plugin to automatically unmount snapshots 
that have been invalidated.
 2010-10-29 16:43:51 +00:00
Petr Rockai
a341cab721 Implement automatic snapshot extension with dmeventd, and add two new options 
to lvm.conf in the activation section: 'snapshot_autoextend_threshold' and
'snapshot_autoextend_percent', that define how to handle automatic snapshot
extension. The former defines when the snapshot should be extended: when its
space usage exceeds this many percent. The latter defines how much extra space
should be allocated for the snapshot, in percent of its current size.
 2010-10-15 16:28:14 +00:00
Alasdair Kergon
08f1ddea6c Use __attribute__ consistently throughout. 2010-07-09 15:34:40 +00:00
Zdenek Kabelac
1b281f408d Headerfile <pthread.h> is no longer needed here 2010-05-11 08:32:22 +00:00
Peter Rajnoha
acbb93a383 Rename "stat" to "status" in dmeventd_snapshot.c. 
Otherwise "warning: declaration of ‘stat’ shadows a global declaration"
will appear because it shadows "stat" from stat.h.
 2010-02-15 12:55:20 +00:00
Milan Broz
676b511245 Fix syslog prefix in the first message (dmeventd->lvm). 2010-01-22 12:48:58 +00:00
Alasdair Kergon
fff0de4865 fix lib include 2010-01-22 00:18:37 +00:00
Alasdair Kergon
d3d98fdc1e Add libdevmapper-event-lvm2.so to serialise dmeventd plugin liblvm2cmd use. 2010-01-21 22:15:45 +00:00
Alasdair Kergon
cf8ee443e5 Fix dmeventd _temporary_log_fn parameters. (2.02.50) 2009-09-17 10:37:23 +00:00
Milan Broz
ffc4a05bda Fix snapshot monitoring library to not cancel monitoring invalid snapshot. 
snapshot DSO unregistered itself when snapshot changed state to invalid.

This can cause a race (and several timeouts), when for example another snapshot
is added and in the middle of operation (suspend/resume) the monitoring thread
unregister itself.

Fix it by keeping the snapshot monitored after invalidation - just reset
threshold to not really print any messages to syslog.
 2008-10-13 12:06:30 +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
Petr Rockai
67961c7c10 Add snapshot dmeventd library (enables dmeventd snapshot monitoring). 2008-01-09 15:32:19 +00:00