diff options
| author | Andrew Morton <akpm@osdl.org> | 2006-12-06 23:38:16 -0500 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-07 11:39:39 -0500 |
| commit | a38a44c1a93078fc5fadc4ac2df8dea4697069e2 (patch) | |
| tree | 03ad860836722b803a02a58d5e988fb9f9b883fc /Documentation/drivers | |
| parent | 83df8db9e62129975fab6d800fb381faf0dfee74 (diff) | |
[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>
Diffstat (limited to 'Documentation/drivers')
0 files changed, 0 insertions, 0 deletions