]> err.no Git - linux-2.6/commit
IPC/message queues: introduce msgctl_down
authorPierre Peiffer <pierre.peiffer@bull.net>
Tue, 29 Apr 2008 08:00:48 +0000 (01:00 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 29 Apr 2008 15:06:13 +0000 (08:06 -0700)
commita0d092fc2df845a43cc4847836818f49331d0a5c
treef47b94bfa2e18beadff39930c9386764e45bc4ec
parent8d4cc8b5c5e5bac526618ee704f3cfdcad954e0c
IPC/message queues: introduce msgctl_down

Currently, sys_msgctl is not easy to read.

This patch tries to improve that by introducing the msgctl_down function to
handle all commands requiring the rwmutex to be taken in write mode (ie
IPC_SET and IPC_RMID for now).  It is the equivalent function of semctl_down
for message queues.

This greatly changes the readability of sys_msgctl and also harmonizes the way
these commands are handled among all IPCs.

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/msg.c