c6eb3dda25892f1f974f5420f63e6721aab02f6f - arm/linux

commit	c6eb3dda25892f1f974f5420f63e6721aab02f6f	[log] [tgz]
author	Peter Zijlstra <a.p.zijlstra@chello.nl>	Tue Apr 05 17:23:41 2011 +0200
committer	Ingo Molnar <mingo@elte.hu>	Thu Apr 14 08:52:33 2011 +0200
tree	b9be3e193dcfeda3589832be10189085cde496c5
parent	3ca7a440da394808571dad32d33d3bc0389982e6 [diff]

mutex: Use p->on_cpu for the adaptive spin

Since we now have p->on_cpu unconditionally available, use it to
re-implement mutex_spin_on_owner.

Requested-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frank Rowand <frank.rowand@am.sony.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20110405152728.826338173@chello.nl

include/linux/mutex.h[diff]
include/linux/sched.h[diff]
kernel/mutex-debug.c[diff]
kernel/mutex-debug.h[diff]
kernel/mutex.c[diff]
kernel/mutex.h[diff]
kernel/sched.c[diff]

7 files changed

tree: b9be3e193dcfeda3589832be10189085cde496c5