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authorAndrew Morton <akpm@linux-foundation.org>2010-06-29 15:05:42 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-06-29 15:29:32 -0700
commitf4985dc714d7ab1920c5aa502b7f4073fa1b4177 (patch)
tree4e8385c3d0c95f02623f5712a875742664701822 /Makefile
parentfb967ecc584c20c74a007de749ca597068b0fcac (diff)
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fs/fcntl.c:kill_fasync_rcu() fa_lock must be IRQ-safe
Fix a lockdep-splat-causing regression introduced by commit 989a2979205d ("fasync: RCU and fine grained locking"). kill_fasync() can be called from both process and hard-irq context, so fa_lock must be taken with IRQs disabled. Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16230 Reported-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Reported-by: Dominik Brodowski <linux@dominikbrodowski.net> Tested-by: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Maciej Rutecki <maciej.rutecki@gmail.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: "David S. Miller" <davem@davemloft.net> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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