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Commit Graph

182 Commits

Author SHA1 Message Date
Alasdair Kergon
cf8ee443e5 Fix dmeventd _temporary_log_fn parameters. (2.02.50) 2009-09-17 10:37:23 +00:00
Mikulas Patocka
3395d72881 Change exit() to _exit() in the child process. exit flushes stdio file buffers,
_exit doesn't. If there were some open files, an error in exec and subsequent
exit() would cause the buffers to be flushed twice.

Example:

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/wait.h>

int main()
{
	printf("buu");
	if (!fork()) {
		execl("/bin/true-not-exists", "/bin/true", NULL);
		exit(1);
	}
	wait(NULL);
	return 0;
}

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com

---
 daemons/dmeventd/libdevmapper-event.c |    2 +-
 lib/misc/lvm-exec.c                   |    2 +-
 test/harness.c                        |    3 ++-
 tools/dmsetup.c                       |    2 +-
 4 files changed, 5 insertions(+), 4 deletions(-)
2009-07-13 21:26:41 +00:00
Alasdair Kergon
476d463348 pre-release tidy up 2009-06-30 18:39:31 +00:00
Petr Rockai
1f164ad9d0 - Ignore suspended devices during repair (Milan).
- Call vgreduce --removemissing (without --force) automatically to clean up bad
  PVs (Milan).
2009-06-15 14:47:39 +00:00
Milan Broz
01fb9ca9a0 Do not fork daemon when dmeventd cannot be found. 2009-06-15 12:29:41 +00:00
Milan Broz
c26488d348 Use lvconvert --repair instead of vgreduce in mirror dmeventd DSO (mornfall)
Introduce lvconvert --use_policies (mornfall)
2009-06-04 12:01:15 +00:00
Alasdair Kergon
450928e304 Revert:
Use lvconvert --repair in dmeventd mirror DSO.
for now.

It replaces bad behaviour in one set of circumstances with bad behaviour
in a different set.  We think the behaviour needs to be more configurable.
2009-05-20 22:24:48 +00:00
Milan Broz
ac0034c20f Use lvconvert --repair in dmeventd DSO (mornfall)
This means two things:

1) Non-mirrored LVs will be no longer affected by mirror monitoring. (Before,
if you had a LV that went partially missing on a VG where a mirror leg failed,
this LV would be removed automatically by dmeventd... Probably not an
unrecoverable dataloss bug, but still quite unpleasant.)

2) If enough parallel PV space is available at the time of the mirror failure,
the failed devices will be automatically replaced using this spare space. Which
(and whether) free space may be used is still not configurable, but is a
planned feature. Since it is relatively easy to undo the action by converting
the mirror manually, I don't consider this to be a showstopper. In fact, I
think the compromise is much better than what we have now.
2009-05-19 10:25:16 +00:00
Milan Broz
0b502933c5 Introduce lvm2_install target.
Buildsystem support device-mapper only install,
but generic install tagret includes both dm+lvm2.

For distribution which uses separate install_device-mapper,
there is no way how to install lvm2 only
(so after installing lvm2 for packaging purposes
built system must remove installed device-mapper files).

Fix it by allowing lvm2_install target, similarily like
install_cluster for clvmd.

(install = install_device-mapper + install_lvm2)
2009-05-11 10:28:45 +00:00
Milan Broz
be82186cba Do not use generic install if running install_device-mapper.
It propagates into subdirs which includes DSOs which requires
lvm2 build (only install_device-mapper should propagate there).
2009-05-11 10:12:35 +00:00
Zdenek Kabelac
beeae21dbb Do not create some dm and lvm static librarie when they are not requested
by configure option
Add dependency for static dmeventd library
2009-04-08 14:04:35 +00:00
Alasdair Kergon
77b69aa724 make install_device-mapper 2008-11-04 17:25:32 +00:00
Alasdair Kergon
a479de2e75 dmeventd 2008-11-04 15:55:27 +00:00
Alasdair Kergon
56d8844068 more fixes 2008-11-04 15:07:45 +00:00
Alasdair Kergon
d4b9af444c more tweaks for dmeventd - not finished yet 2008-11-03 23:01:21 +00:00
Alasdair Kergon
2c44337bd5 Right, a simple build (without options) is working again. 2008-11-03 22:14:30 +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
Milan Broz
550463b5e1 Fix mirror DSO to call vgreduce with proper parameters. 2008-09-25 15:52:29 +00:00
Petr Rockai
8153260792 Add #include <signal.h> to dmeventd.c, fixes compilation on NetBSD. 2008-07-09 13:26:07 +00:00
Petr Rockai
2a9a80c9bb Fix dmeventd regression where mirror and snapshot monitoring libraries
failed to link against liblvm2cmd.

Dmeventd DSOs *require* lvm2cmd to be linked in.

For the future:
1) AC_SUBST does not create Makefile variables, only @foo@-style substitutions
2) When using `test', whitespace around `=' is essential:
    test a=b is true, as is test a=a
2008-07-09 09:59:42 +00:00
Zdenek Kabelac
c454025a0f Added generation of the versioned libdevmapper-event.so for LVM's test 2008-06-27 15:36:51 +00:00
Jim Meyering
aa4d1e3106 avoid link failure when configuring without --enable-cmdlib
* configure.in (LVM2CMD_LIB): Define if --enable-cmdlib.
* dmeventd/mirror/Makefile.in (CLDFLAGS): Use $(LVM2CMD_LIB) rather
than hard-coding -llvm2cmd.
* dmeventd/snapshot/Makefile.in (CLDFLAGS): Likewise.
2008-06-23 09:25:08 +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
a98a2d4a4e Amend previous commit. * does not match .files... 2008-01-09 15:33:25 +00:00
Petr Rockai
67961c7c10 Add snapshot dmeventd library (enables dmeventd snapshot monitoring). 2008-01-09 15:32:19 +00:00
Petr Rockai
cd1a7e80c0 Fix a possible double-free in libdevmapper-event. 2007-11-27 12:26:06 +00:00
Jim Meyering
7f8f8bfa09 Correct typo in comments: s/is part of the LVM2/is part of LVM2/.
Signed-off-by: Jim Meyering <jim@meyering.net>


Author: Jim Meyering <jim@meyering.net>
2007-09-21 10:16:45 +00:00
Alasdair Kergon
147d5faccf Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1. 2007-08-21 16:26:07 +00:00
Alasdair Kergon
27c7135097 Use NULL not 0.
Remove worthless comment.
2007-08-05 00:13:02 +00:00
Petr Rockai
674cfe8071 Fix a possible segfault in libdevmapper-event. Thanks to Brian J. Wood
for noticing this.
2007-08-02 22:31:59 +00:00
Jim Meyering
f28fd56f76 libdevmapper, dmeventd: be paranoid about detecting write failure
* dmeventd/dmeventd.c (_set_oom_adj): When writing to /proc/self/oom_adj,
detect failure even if it's hidden behind ferror.  [Using dm_fclose's
extra ferror test here is probably not needed, since the amount written
is nowhere near BUFSIZ, but use it regardless, for consistency. ]
* lib/fs/libdevmapper.c (do_suspend): Detect fclose failure when
writing to suspend.
2007-07-24 14:16:48 +00:00
Alasdair Kergon
1bf5aae913 Change some #include lines to search only standard system directories. 2007-04-27 17:46:16 +00:00
Petr Rockai
6e23a8aa20 Fix the regression introduced by dmeventd leak fixes. 2007-04-24 13:29:02 +00:00
Petr Rockai
727f266227 Fix some memory leaks in dmeventd. 2007-04-23 15:06:03 +00:00
Milan Broz
0329281b49 Fix libdevmapper-event memory leaks 2007-04-19 19:10:19 +00:00
Alasdair Kergon
c2784df48f Remove unnecessary memset() return value checks. [Jim Meyering] 2007-03-16 14:36:14 +00:00
Alasdair Kergon
112d09deb1 Improve dmeventd messaging protocol: drain pipe and tag messages. 2007-02-02 17:08:51 +00:00
Alasdair Kergon
aca043364e dmeventd mirror sets ignore_suspended_devices and avoids scanning mirrors. 2007-01-25 23:32:29 +00:00
Alasdair Kergon
232da7ecc7 Add some missing close() and fclose() return value checks. 2007-01-25 14:16:20 +00:00
Alasdair Kergon
3329c69865 Add private variable to dmeventd shared library interface. 2007-01-23 17:40:40 +00:00
Alasdair Kergon
d28dfb5720 add a dso-private variable to dmeventd interface
more inline docn
2007-01-23 17:38:39 +00:00
Alasdair Kergon
4dcaa2300c Add dm_event_handler_[gs]et_timeout functions.
Streamline dm_report_field_* interface.
2007-01-22 15:03:57 +00:00
Alasdair Kergon
8bbec04d5b var dev_name->device_name (lvm2 has dev_name()) 2007-01-19 20:42:09 +00:00
Alasdair Kergon
919ab64fdb fix exit status; always print message on child failure 2007-01-19 18:08:36 +00:00
Alasdair Kergon
fcdf2e09a2 Add cmdline debug & version options to dmeventd.
Fix oom_adj handling.
2007-01-19 17:22:17 +00:00
Alasdair Kergon
c63c19a73e stat oom_adj and stay silent if it doesn't exist
dm_event_handler now keeps private copies of strings
2007-01-17 14:45:10 +00:00
Alasdair Kergon
5611829c89 more fixes 2007-01-16 23:03:13 +00:00
Alasdair Kergon
f6af1a67b5 more little fixes 2007-01-16 21:13:07 +00:00
Alasdair Kergon
74885e2203 clean up global mutex usage and fix a race in thread finalisation code
properly clean up thread status when thread terminates from within
2007-01-16 20:27:07 +00:00
Alasdair Kergon
e125e1547f dmeventd oom_adj + reduce thread stack size 2007-01-16 20:13:04 +00:00
Alasdair Kergon
61997bb9bb Add basic reporting functions to libdevmapper. 2007-01-16 18:04:15 +00:00
Alasdair Kergon
d5ec3c8889 reduce some if/else complexity 2007-01-15 22:37:40 +00:00
Alasdair Kergon
528329f199 Fix a malloc error path in dmsetup message. 2007-01-15 22:05:50 +00:00
Alasdair Kergon
6ae178f91c fix recent checkins 2007-01-15 19:47:49 +00:00
Alasdair Kergon
25f063d8b7 fail registration if timeout thread cannot be started 2007-01-15 19:19:31 +00:00
Alasdair Kergon
b2486b3d7d use DMEVENTD_PATH 2007-01-15 19:11:58 +00:00
Alasdair Kergon
c7a5306039 static naming 2007-01-15 18:58:40 +00:00
Alasdair Kergon
02059c81e7 Some libdevmapper-event interface changes. 2007-01-15 18:22:02 +00:00
Alasdair Kergon
931d24a4b1 More libdevmapper-event interface changes and fixes.
Rename dm_saprintf() to dm_asprintf().
2007-01-15 18:21:01 +00:00
Alasdair Kergon
8ef6eb30d9 Report dmeventd mirror monitoring status. 2007-01-12 20:38:30 +00:00
Alasdair Kergon
c8ee38201d Reinstate dm_event_get_registered_device 2007-01-12 20:22:11 +00:00
Alasdair Kergon
6b36e863cb updated dmeventd interface 2007-01-11 22:24:32 +00:00
Alasdair Kergon
3165248642 Lots of dmeventd-related changes. 2007-01-11 21:54:53 +00:00
Alasdair Kergon
7cc6c5d79a fail if status args are missing 2007-01-11 20:11:19 +00:00
Alasdair Kergon
65e635b685 Remove dmeventd mirror status line word limit 2007-01-11 19:52:06 +00:00
Alasdair Kergon
4594807a24 Use CFLAGS when linking so mixed sparc builds can supply -m64. 2007-01-11 16:23:22 +00:00
Alasdair Kergon
616c3eccfd fix last checkin 2007-01-08 15:35:08 +00:00
Alasdair Kergon
5b95f17814 Lots of dmevent changes.
Export dm_basename().
Cope with a trailing space when comparing tables prior to possible reload.
2007-01-08 15:18:52 +00:00
Alasdair Kergon
6032a223f4 Add dmeventd_mirror register_mutex, tidy initialisation & add memlock. 2007-01-08 14:24:20 +00:00
Alasdair Kergon
0c8569edea Fix dmeventd mirror to cope if monitored device disappears. 2006-12-20 14:35:02 +00:00
Alasdair Kergon
7d7736b7b4 Add dm_split_words() and dm_split_lvm_name() to libdevmapper. 2006-08-21 12:07:03 +00:00
Alasdair Kergon
f1dc5cc99b Add mutex to dmeventd_mirror to avoid concurrent execution. 2006-07-04 18:57:27 +00:00
Alasdair Kergon
aeb2c277a8 Add mirror log fault-handling policy. 2006-05-11 19:45:53 +00:00
Alasdair Kergon
2a99b5b816 Avoid a dmeventd compiler warning. 2006-05-11 19:08:02 +00:00
Alasdair Kergon
6657d5b66b Move DEFS into configure.h.
Remove dmsetup line buffer limitation.
2006-05-10 19:38:25 +00:00
Alasdair Kergon
dfb5da937e tweak .so loading messages; extra device_exists() sanity check 2006-04-28 14:08:04 +00:00
Alasdair Kergon
b4cbeca164 fix makefile 2006-04-19 17:32:05 +00:00
Alasdair Kergon
126a5696f2 fix makefile 2006-04-19 17:24:00 +00:00
Alasdair Kergon
06541daa12 fix makefile 2006-04-19 17:15:08 +00:00
Alasdair Kergon
0c8ff3ad63 make pkgconfig installation step optional, and clean up generated files 2006-04-19 16:38:56 +00:00
Alasdair Kergon
d81e3d0bad configure/makefile tidying + pkg-config support. 2006-04-19 15:23:10 +00:00
Alasdair Kergon
9ab7701215 dmeventd thread/fifo fixes. 2006-03-09 21:33:59 +00:00
Alasdair Kergon
ed2b1bc5eb post-release
fix dmeventd build
2006-02-08 23:23:19 +00:00
Alasdair Kergon
7ffe8aab61 remove a dmeventd_mirror syslog message 2006-02-06 19:34:45 +00:00
Alasdair Kergon
d8f0eeb039 Temporary device_exists() fixes. 2006-02-03 19:44:59 +00:00
Alasdair Kergon
4206c3db2e Use supplied full dso name. 2006-02-03 19:41:34 +00:00
Alasdair Kergon
93dc5190bc fix libdevmapper-event-mirror liblvm2cmd link search path 2006-02-03 14:48:38 +00:00
Alasdair Kergon
e4c11ad108 Only do lockfs filesystem sync when suspending snapshots.
Switchover library building to use LIB_SUFFIX.
2006-01-31 14:52:30 +00:00
Alasdair Kergon
5e3bd86778 Rename _log to dm_log and export.
Fix misc compile-time warnings.
2006-01-31 14:50:38 +00:00
Alasdair Kergon
db204c51a6 Tidy some comments/messages. 2006-01-27 20:52:21 +00:00
Alasdair Kergon
1ff0ef6945 Fix renamed dso. 2006-01-27 20:51:36 +00:00
Alasdair Kergon
6463fa2993 dmeventd thread termination fix 2006-01-27 20:50:01 +00:00
Alasdair Kergon
fc2b1f2ce9 some init_client cleanup 2006-01-27 20:49:13 +00:00
Alasdair Kergon
f0b4c52d4a More dmeventd mirror cleanups. 2006-01-27 20:48:19 +00:00
Alasdair Kergon
17840c21c3 Remove avoidable dmeventd mirror forking. 2006-01-27 20:47:20 +00:00
Alasdair Kergon
7000cdb5ea Fix libdevmapper event daemon_running status. 2006-01-27 20:46:06 +00:00
Alasdair Kergon
3bee15b0fb Replace deprecated signal functions. 2006-01-27 20:45:17 +00:00
Alasdair Kergon
cb49c5a03f Use split_dm_name in dmeventd mirror code. 2006-01-27 20:43:52 +00:00
Alasdair Kergon
132a76156e fix dmevent registration return codes 2006-01-27 20:01:45 +00:00
Alasdair Kergon
74892f5c3d read/write loop fixes 2005-12-19 22:56:47 +00:00