From: Andrew Morton <akpm@osdl.org>
Date: Fri, 14 Jul 2006 07:24:06 +0000 (-0700)
Subject: [PATCH] del_timer_sync(): add cpu_relax()
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=a0009652af385a42f0e0604136f772ead406c78d;p=openwrt%2Fstaging%2Fblogic.git

[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>
---

diff --git a/kernel/timer.c b/kernel/timer.c
index 2a87430a58d4..acfa557e685b 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();
 	}
 }