[PATCH] del_timer_sync(): add cpu_relax()

Relax the CPU in the del_timer_sync() busywait loop. Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
ambv · Jul 15, 2006 · a000965 · a000965
1 parent 52e92e5
commit a000965
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/kernel/timer.c b/kernel/timer.c
@@ -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();
 	}
 }