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authorNadia Derbey <Nadia.Derbey@bull.net>2008-04-29 01:00:45 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-29 08:06:13 -0700
commit6546bc4279241e8fa432de1bb63a4f6f791fd669 (patch)
tree308f5c1621b1019a44800622ffc468a372f09434 /ipc/sem.c
parent91cfb2b4b57816de0c96de417b3238249f0b125f (diff)
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ipc: re-enable msgmni automatic recomputing msgmni if set to negative
The enhancement as asked for by Yasunori: if msgmni is set to a negative value, register it back into the ipcns notifier chain. A new interface has been added to the notification mechanism: notifier_chain_cond_register() registers a notifier block only if not already registered. With that new interface we avoid taking care of the states changes in procfs. 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>
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