]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
IPC/semaphores: move the rwmutex handling inside semctl_down
authorPierre Peiffer <pierre.peiffer@bull.net>
Tue, 29 Apr 2008 08:00:49 +0000 (01:00 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 29 Apr 2008 15:06:13 +0000 (08:06 -0700)
commit522bb2a2b420a0c1d0fcd037aa4e1bb9e2bca447
tree6023efd860b807e7d50a20eebeaebe3e21d0285b
parenta0d092fc2df845a43cc4847836818f49331d0a5c
IPC/semaphores: move the rwmutex handling inside semctl_down

semctl_down is called with the rwmutex (the one which protects the list of
ipcs) taken in write mode.

This patch moves this rwmutex taken in write-mode inside semctl_down.

This has the advantages of reducing a little bit the window during which this
rwmutex is taken, clarifying sys_semctl, and finally of having a coherent
behaviour with [shm|msg]ctl_down

Signed-off-by: Pierre Peiffer <pierre.peiffer@bull.net>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Cc: Nadia Derbey <Nadia.Derbey@bull.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
ipc/sem.c