[PATCH] del_timer_sync(): add cpu_relax()
Andrew Morton [Fri, 14 Jul 2006 07:24:06 +0000 (00:24 -0700)]
Relax the CPU in the del_timer_sync() busywait loop.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

kernel/timer.c

index 2a87430..acfa557 100644 (file)
@@ -374,6 +374,7 @@ int del_timer_sync(struct timer_list *timer)
                int ret = try_to_del_timer_sync(timer);
                if (ret >= 0)
                        return ret;
+               cpu_relax();
        }
 }