From a0009652af385a42f0e0604136f772ead406c78d Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@osdl.org>
Date: Fri, 14 Jul 2006 00:24:06 -0700
Subject: [PATCH] del_timer_sync(): add cpu_relax()

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 | 1 +
 1 file changed, 1 insertion(+)

(limited to 'kernel')

diff --git a/kernel/timer.c b/kernel/timer.c
index 2a87430a58d..acfa557e685 100644
--- 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();
 	}
 }
 
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