1
0
mirror of git://sourceware.org/git/lvm2.git synced 2024-12-22 17:35:59 +03:00
Commit Graph

185 Commits

Author SHA1 Message Date
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
Zdenek Kabelac
e2f194952a cleanup: clvmd reindent local_pipe_callback
Move !node_up check in front and reindent
rest of the function to the left.
2014-04-14 13:02:27 +02:00
Zdenek Kabelac
eccc50d861 clvmd: use thread-safe ctime_r when debugging
Use thread friendly version of ctime
TODO:should be probably replaced with strftime()
2014-04-14 13:02:25 +02:00
Zdenek Kabelac
639983b6b7 clvmd: skip adding reply when finished
Prior adding new reply to the list, check
if the reply thread is not already finished.
In that case discard adding message
(which would otherwise be leaked).
2014-04-14 13:01:42 +02:00
Zdenek Kabelac
7236b92857 clvmd: improve mutex usage in request_timed_out
Use mutex to access localsock values, so check
num_replies when the thread is not yet finished.

Check for threadid prior the mutex taking
(though this check is probably not really needed)
2014-04-14 13:00:51 +02:00
Zdenek Kabelac
7075656034 clvmd: drop reply_mutex
Added complexity with extra reply mutex is not worth the troubles.
The only place which may slightly benefit from this mutex is timeout
and since this is rather error case - let's convert it to
localsock.mutex and keep it simple.
2014-04-14 12:59:07 +02:00
Zdenek Kabelac
6115c0d112 clvmd: set finished flag with mutex
Setting this variable needs to be protected with mutex.
2014-04-14 12:58:28 +02:00
Zdenek Kabelac
cc0096ebdd clvmd: move mutex init and detroy
Move the pthread mutex and condition creation and destroy
to correct place right after client memory is allocatedd
or is going to be released.

In the original place it's been in race with lvm thread
which could have still unlock mutex while it's been already
destroyed.
2014-04-14 12:57:39 +02:00
Zdenek Kabelac
91f4e09b48 clvmd: fix test mode race
When TEST_MODE flag is passed around the cluster,
it's been use in thread unprotected way, so it may have
influenced behaviour of other running parallel lvm commands
(activation/deactivation/suspend/resume).

Fix it by set/query function only under lvm mutex.
For hold_un/lock function calls check lock_flags bits directly.
2014-04-14 12:55:46 +02:00
Zdenek Kabelac
b522312678 clvmd: hardening leak on exit
Operate with lvm_thread_exit while holding lvm_thread_mutex.
Don't leave unfinished work in the lvm thread queue
and always finish all queued tasks before exit,
so no cmd struct is left in the list.

(in-release fix)
2014-03-25 11:22:57 +01:00
Zdenek Kabelac
01efb20bdb cleanup: clvmd add more info debug message 2014-03-21 22:29:27 +01:00
Zdenek Kabelac
0d449fe183 cleanup: clvmd uses struct initializers
Code easier to read
2014-03-21 22:29:27 +01:00
Zdenek Kabelac
9196274c1e cleanup: clvmd zombie removal loop
Simplier code to start scan from the next node,
and remove matching pipe client.
2014-03-21 22:29:27 +01:00
Zdenek Kabelac
5740c00f3b cleanup: clvmd reindent read_from_local_sock
Shift indent of else branch to right since
error path returns in the front.
(Simplier to read)
2014-03-21 22:29:26 +01:00
Zdenek Kabelac
dd17286c90 cleanup: clvmd indent change
Plain indent changes.
2014-03-21 22:29:26 +01:00
Zdenek Kabelac
0b79979bb9 cleanup: clvmd dump_messages 2014-03-21 22:29:26 +01:00
Zdenek Kabelac
f8cd435cd8 cleanup: clvmd update log_error
Drop \n from log_error() and add '.'
2014-03-21 22:29:26 +01:00
Zdenek Kabelac
4c97ea2ce5 cleanup: clvmd drop goto 2014-03-21 22:29:25 +01:00
Zdenek Kabelac
bf19c6be2c cleanup: clvmd move destroy_lvhash into main
Keep destruction code path consistent and simple and
destroy lvhash in the place it's been created.
Also issue debug message from a single place.
2014-03-21 22:29:25 +01:00
Zdenek Kabelac
7041c8bf51 clvmd: drop dead code
Since pipe_client has been already reset to NULL,
remove this dead code.
2014-03-21 22:29:24 +01:00
Zdenek Kabelac
73978f8d7d clvmd: drop unused local_sock parameter 2014-03-21 22:29:24 +01:00
Zdenek Kabelac
37396e2fe5 clvmd: update add_reply_to_list
Take mutex lock after the allocation just before
the structure is merged into reply list.
2014-03-21 22:29:24 +01:00
Zdenek Kabelac
2847994624 clvmd: use dm_malloc
Use libdm malloc wrapper functions.
2014-03-21 22:29:24 +01:00
Zdenek Kabelac
c45cd6eb8d clvmd: move call of cluster_closedown
We have to close cluster in some predicatable way,
otherwise we may access released memory from different
threads.

So move closedown till the point we know all thread
are closed. New messages from cluster are discarded.
2014-03-21 22:29:23 +01:00
Zdenek Kabelac
fc39ad677b clvmd: move destroy_lvm into lvm thread
Since lvm was initialized in lvm thread call destroy there as well.
2014-03-21 22:29:23 +01:00
Zdenek Kabelac
8431d47b3b clvmd: add special lvm thread exit
When multiple threads act on the same 'quit' variable
the order of exit becomes unpredictable.

So let the main_loop() finish first and then clean up
all queued lvm jobs.

Do not add any new work, when lvm_thread_exit is set.
2014-03-21 22:29:23 +01:00
Zdenek Kabelac
05a532e171 clvmd: always set cleanup_needed
When thread is created, set the cleanup_needed flag
immediately so it could be used properly any time later
when cleanup_zombie() is needed.
2014-03-21 22:29:23 +01:00
Zdenek Kabelac
5bea2b5c82 clvmd: fix clean memory on exit
Properly clean 'client' structure only for LOCAL_SOCK type.
(Fixes bug from commit 460c19df62)
(in release fix)

Also cleanup-up associated pthreads by using cleanup_zombie() function.
Since this function may change the list, restart scanning always from
the list header.

Note: couple following patches are necessary to make this working properly.
2014-03-21 22:29:22 +01:00
Zdenek Kabelac
6c892be4a5 clvmd: fix the len setting in last commit
When theoretically sending 0 length buffer, ensure 0 is returned.
2014-03-10 12:35:44 +01:00
Zdenek Kabelac
341055ddb3 cleanup: clvmd use struct initializers
Simplify code, and use compiler capability to
initilize struct members on its own.
2014-03-10 12:24:10 +01:00
Zdenek Kabelac
c44ede31a3 cleanup: clvmd use else if
When string already matches, skip rest of tests.
2014-03-10 12:24:09 +01:00
Zdenek Kabelac
2cfe0840d2 cleanup: clvmd assign NULL to pointers
Use NULL when assigning to void*.
2014-03-10 12:24:09 +01:00
Zdenek Kabelac
c824369fbd cleanup: clvmd indent changes
Improve readbility of clvmd code.
Remove some unneeded braces.
2014-03-10 12:24:09 +01:00
Zdenek Kabelac
109564d6a5 cleanup: clvmd simplify loops
Rewrite write loops to be more readable.
2014-03-10 12:24:09 +01:00
Zdenek Kabelac
3d23404081 cleanup: clvmd rewrite send_message
Improve readability of code and make it clear what it tries
to achieve.
2014-03-10 12:24:09 +01:00
Zdenek Kabelac
460c19df62 clvmd: fix memleak on exit
This patch will releases allocated private resources from
startup. Needs previous dm_zalloc patch to ensure unset
private pointer is NULL.

TODO: check on real cluster.
2014-03-10 12:21:32 +01:00
Zdenek Kabelac
38ce06e448 clvmd: use dm_zalloc for socket allocation
Instead of doing individual settings for struct members,
ensure whole struct is in defined state.
2014-03-10 12:20:49 +01:00
Zdenek Kabelac
50e1fad86a cleanup: use matching signed types 2013-11-28 12:47:51 +01:00
David Teigland
4c0db84948 clvmd: fix verify message rejection of REMOTE flag
This fixes a bug in commit 19baf842 where verify_message
was rejecting the CLVMD_FLAG_REMOTE flag.  It was missed
since the patch was ported from an lvm version where that
flag does not exist.
2013-10-24 11:18:22 -05:00
Petr Rockai
25bed99681 clvmd: Avoid a 3-way deadlock in dead-client cleanup. 2013-09-18 21:17:48 +02:00
Peter Rajnoha
0563bd0037 fix: some issues reported by coverity
- null_fd resource leak on error path in _reopen_fd_null fn
  - dead code in verify_message in clvmd code
  - dead code in _init_filter_components in toolcontext code
  - null dereference in dm_prepare_selinux_context on error path if
    setfscreatecon fails while resetting SELinux context
2013-08-15 12:23:49 +02:00
Zdenek Kabelac
7b1315411f clmvd: fix decriptor leak on restart
Do not leave descriptor used for dup2() openned.
2013-08-06 16:20:36 +02:00
David Teigland
19baf84290 clvmd: verify messages before processing
Check that fields in clvm_header are valid when
local or remote messages are received.  If not,
log an error, dump the message data and ignore
the message.
2013-08-02 09:55:54 -05:00
Zdenek Kabelac
d38af2857f cleanup: cast to len's type
Cleanup different signess gcc warning.
2013-04-21 23:14:05 +02:00
Zdenek Kabelac
5070ffbca7 clvmd: avoid logging in signal handler
debuglog in the main thread.
2013-04-21 22:56:59 +02:00
Zdenek Kabelac
0125518d6d clvmd: preserve foreground mode across restart
Keep clvmd in foreground when restarted.
Useful for testing.
2013-04-21 22:56:48 +02:00
Zdenek Kabelac
8bcc1da2f3 locales: use higher prio LC_ALL variable
For reseting locale environment into significantly less memory
consuming version 'C' - use LC_ALL instead of LANG since it has
higher priority in locale settings.

Otherwise we may observe whole locale-archive which might be
over 100MB on i.e. Fedora systems locked in memory with
some daemons.
2013-01-22 11:25:02 +01:00
Zdenek Kabelac
1d774e5667 cleanup: drop test for optarg NULL
Since -d takes an argument, we do not need to check for
optarg being NULL here.
2012-12-15 14:57:40 +01:00
Zdenek Kabelac
13fe333b54 clvmd: fix parsing of -d argument
clvmd -d option parsing was not working properly.

clvmd -d 2   (with space) has been ignored because of
'::' used in getopt string, and as failsafe it's been used '1'.

Later this debug_arg has been ignored and debug_opt was used
instead which happend to have value '1'.

Submitted-by: Robert Milasan <rmilasan at suse.com>
Reported-by: Robert Milasan  <rmilasan at suse.com>
2012-10-19 15:35:56 +02:00
Zdenek Kabelac
c6f680ee49 clvmd,lvmetad: check for fcntl result
Report any problem of fcntl.
2012-08-23 14:38:48 +02:00