From: Cong Wang <amwang@redhat.com>
Date: Tue, 22 Jan 2013 21:09:51 +0000 (+0000)
Subject: net: add RCU annotation to sk_dst_cache field
X-Git-Tag: v3.9-rc1~139^2~247
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=0e36cbb344575e481167e090f0926701f83207d6;p=~emulex%2Finfiniband.git

net: add RCU annotation to sk_dst_cache field

sock->sk_dst_cache is protected by RCU.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/net/sock.h b/include/net/sock.h
index 581dc6bd7dc..a340ab46b41 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -340,7 +340,7 @@ struct sock {
 #endif
 	unsigned long 		sk_flags;
 	struct dst_entry	*sk_rx_dst;
-	struct dst_entry	*sk_dst_cache;
+	struct dst_entry __rcu	*sk_dst_cache;
 	spinlock_t		sk_dst_lock;
 	atomic_t		sk_wmem_alloc;
 	atomic_t		sk_omem_alloc;