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authorFrederic Weisbecker <fweisbec@gmail.com>2009-12-02 20:49:17 +0100
committerIngo Molnar <mingo@elte.hu>2009-12-03 11:50:11 +0100
commitc08f782985eed9959438368e84ce1d7f2ed03d95 (patch)
tree436cbaa8d2d91fffa812c3f8c933b025d3155f79 /kernel/sched.c
parentc02260277e472095ffb3ad893be5eeab9dcefde3 (diff)
downloadlinux-c08f782985eed9959438368e84ce1d7f2ed03d95.tar.bz2
mutex: Fix missing conditions to build mutex_spin_on_owner()
We don't need to build mutex_spin_on_owner() if we have CONFIG_DEBUG_MUTEXES or CONFIG_HAVE_DEFAULT_NO_SPIN_MUTEXES as it won't be used under such configs. Use CONFIG_MUTEX_SPIN_ON_OWNER as it gathers all the necessary checks before building it. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Acked-by: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <1259783357-8542-2-git-send-regression-fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <peterz@infradead.org>
Diffstat (limited to 'kernel/sched.c')
-rw-r--r--kernel/sched.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index 3c11ae0a948d..ec0af1fcb195 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -5481,7 +5481,7 @@ need_resched_nonpreemptible:
}
EXPORT_SYMBOL(schedule);
-#ifdef CONFIG_SMP
+#ifdef CONFIG_MUTEX_SPIN_ON_OWNER
/*
* Look out! "owner" is an entirely speculative pointer
* access and not reliable.