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authorAndrew Morton <akpm@osdl.org>2006-12-07 05:38:16 +0100
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-07 17:39:39 +0100
commita38a44c1a93078fc5fadc4ac2df8dea4697069e2 (patch)
tree03ad860836722b803a02a58d5e988fb9f9b883fc /kernel/profile.c
parent[PATCH] declare smp_call_function_single in generic code (diff)
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[PATCH] smp_call_function_single() check that local interrupts are enabled
smp_call_function_single() can deadlock if the caller disabled local interrupts (the target CPU could be spinning on call_lock). Check for that. Why on earth do these functions use spin_lock_bh()?? Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Andi Kleen <ak@suse.de> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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