tree 5e03d0c34379db77f50238c546f5417139ac9671
parent 927cbe8a3e9ebc466f76af5a5278a520dc2d5699
author Andrew Morton <akpm@osdl.org> 1154805227 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1154879866 -0700

[PATCH] disable debugging version of write_lock()

We've confirmed that the debug version of write_lock() can get stuck for long
enough to cause NMI watchdog timeouts and hence a crash.

We don't know why, yet.   Disable it for now.

Also disable the similar read_lock() code.  Just in case.

Thanks to Dave Olson <olson@unixfolk.com> for reporting and testing.

Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>