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| author | Nadia Derbey <Nadia.Derbey@bull.net> | 2008-04-29 01:00:40 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-29 08:06:12 -0700 |
| commit | 4d89dc6ab2711258bfd12c72d753f3ad56b244e2 (patch) | |
| tree | a971c08eab247a7d69ae5fe54c4e0bdfef5d29ba /ipc/util.c | |
| parent | f7bf3df8be72d98afa84f5ff183e14c1ba1e560d (diff) | |
| download | lwn-4d89dc6ab2711258bfd12c72d753f3ad56b244e2.tar.gz lwn-4d89dc6ab2711258bfd12c72d753f3ad56b244e2.zip | |
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.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/ipc/util.c b/ipc/util.c index cb017c7b9370..c27f0e92f489 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 * |