netdev - [RFC PATCH net-next 1/4] net: introduce backup

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Date:	Fri, 3 Jan 2014 11:11:04 +0800
From:	Libo Chen <clbchenlibo.chen@...wei.com>
To:	David Miller <davem@...emloft.net>
CC:	<edumazet@...gle.com>, <jasowang@...hat.com>, <horms@...ge.net.au>,
	Serge Hallyn <serge.hallyn@...ntu.com>,
	<netdev@...r.kernel.org>, <cgroups@...r.kernel.org>,
	<containers@...ts.linux-foundation.org>, <kaber@...sh.net>,
	<xemul@...nvz.org>, <ebiederm@...ssion.com>,
	LKML <linux-kernel@...r.kernel.org>, <jhs@...atatu.com>,
	Li Zefan <lizefan@...wei.com>
Subject: [RFC PATCH net-next 1/4] net: introduce backup_classid to struct
 skbuff


introduce backup_classid to struct skbuff,
we can use it to backup sk_classid when net_ns switch.

Signed-off-by: Libo Chen <clbchenlibo.chen@...wei.com>
---
 include/linux/skbuff.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index c5cd016..b76e871 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -492,6 +492,9 @@ struct sk_buff {
 #ifdef CONFIG_NET_CLS_ACT
 	__u16			tc_verd;	/* traffic control verdict */
 #endif
+#ifdef CONFIG_NET_CLS_CGROUP
+	__u32			backup_classid;
+#endif
 #endif

 	__u16			queue_mapping;
-- 
1.8.2.2


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