tree a7f10f4445c6ffeec0e4cad5a2ea5dae3d0faf8b
parent e2c284d8a87f95df9b47c6a13168a844ca7c03e9
author Nadia Derbey <Nadia.Derbey@bull.net> 1209456044 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1209481573 -0700

ipc: do not recompute msgmni anymore if explicitly set by user

Make msgmni not recomputed anymore upon ipc namespace creation / removal or
memory add/remove, as soon as it has been set from userland.

As soon as msgmni is explicitly set via procfs or sysctl(), the associated
callback routine is unregistered from the ipc namespace notifier chain.

Signed-off-by: Nadia Derbey <Nadia.Derbey@bull.net>
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Matt Helsley <matthltc@us.ibm.com>
Cc: Mingming Cao <cmm@us.ibm.com>
Cc: Pierre Peiffer <pierre.peiffer@bull.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>