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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2011-04-05 17:23:41 +0200
committerIngo Molnar <mingo@elte.hu>2011-04-14 08:52:33 +0200
commitc6eb3dda25892f1f974f5420f63e6721aab02f6f (patch)
treeb9be3e193dcfeda3589832be10189085cde496c5 /kernel/mutex.c
parent3ca7a440da394808571dad32d33d3bc0389982e6 (diff)
downloadlinaro-lsk-c6eb3dda25892f1f974f5420f63e6721aab02f6f.tar.gz
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
Diffstat (limited to 'kernel/mutex.c')
-rw-r--r--kernel/mutex.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/mutex.c b/kernel/mutex.c
index c4195fa9890..fe4706cb0c5 100644
--- a/kernel/mutex.c
+++ b/kernel/mutex.c
@@ -160,7 +160,7 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,
*/
for (;;) {
- struct thread_info *owner;
+ struct task_struct *owner;
/*
* If we own the BKL, then don't spin. The owner of