This is a note to let you know that I've just added the patch titled
net: fix the use of this_cpu_ptr
to the 3.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-fix-the-use-of-this_cpu_ptr.patch
and it can be found in the queue-3.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 24ec2f461c2436afc77aafdfbce35ff6ce80474a Mon Sep 17 00:00:00 2001
From: Li RongQing <roy.qing.li@xxxxxxxxx>
Date: Wed, 27 Mar 2013 23:42:41 +0000
Subject: net: fix the use of this_cpu_ptr
From: Li RongQing <roy.qing.li@xxxxxxxxx>
[ Upstream commit 50eab0503a7579ada512e4968738b7c9737cf36e ]
flush_tasklet is not percpu var, and percpu is percpu var, and
this_cpu_ptr(&info->cache->percpu->flush_tasklet)
is not equal to
&this_cpu_ptr(info->cache->percpu)->flush_tasklet
1f743b076(use this_cpu_ptr per-cpu helper) introduced this bug.
Signed-off-by: Li RongQing <roy.qing.li@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/core/flow.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/core/flow.c
+++ b/net/core/flow.c
@@ -329,7 +329,7 @@ static void flow_cache_flush_per_cpu(voi
struct flow_flush_info *info = data;
struct tasklet_struct *tasklet;
- tasklet = this_cpu_ptr(&info->cache->percpu->flush_tasklet);
+ tasklet = &this_cpu_ptr(info->cache->percpu)->flush_tasklet;
tasklet->data = (unsigned long)info;
tasklet_schedule(tasklet);
}
Patches currently in stable-queue which might be from roy.qing.li@xxxxxxxxx are
queue-3.8/net-fix-the-use-of-this_cpu_ptr.patch
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html