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[PATCH] use smp_mb/wmb/rmb where possible

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Replace a number of memory barriers with smp_ variants.  This means we won't
take the unnecessary hit on UP machines.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
akpm@osdl.org
2005-05-01 08:58:47 -07:00
committed by Linus Torvalds
parent 0d8d4d42f2
commit d59dd4620f
11 changed files with 31 additions and 31 deletions
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kernel/kthread.c
+1 -1
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@@ -174,7 +174,7 @@ int kthread_stop(struct task_struct *k)
/* Must init completion *before* thread sees kthread_stop_info.k */
init_completion(&kthread_stop_info.done);
wmb();
smp_wmb();
/* Now set kthread_should_stop() to true, and wake it up. */
kthread_stop_info.k = k;