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authorNadia Derbey <Nadia.Derbey@bull.net>2008-04-29 01:00:40 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-29 08:06:12 -0700
commit4d89dc6ab2711258bfd12c72d753f3ad56b244e2 (patch)
treea971c08eab247a7d69ae5fe54c4e0bdfef5d29ba /ipc/util.c
parentf7bf3df8be72d98afa84f5ff183e14c1ba1e560d (diff)
downloadlinux-2.6.38-lt-ux500-4d89dc6ab2711258bfd12c72d753f3ad56b244e2.tar.gz
ipc: scale msgmni to the number of ipc namespaces
Since all the namespaces see the same amount of memory (the total one) this patch introduces a new variable that counts the ipc namespaces and divides msg_ctlmni by this counter. 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>
Diffstat (limited to 'ipc/util.c')
-rw-r--r--ipc/util.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/ipc/util.c b/ipc/util.c
index cb017c7b937..c27f0e92f48 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -52,6 +52,9 @@ struct ipc_namespace init_ipc_ns = {
},
};
+atomic_t nr_ipc_ns = ATOMIC_INIT(1);
+
+
/**
* ipc_init - initialise IPC subsystem
*