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authorEric Dumazet <eric.dumazet@gmail.com>2010-11-12 08:46:50 +0300
committerDavid S. Miller <davem@davemloft.net>2010-11-13 00:18:57 +0300
commit1d7138de878d1d4210727c1200193e69596f93b3 (patch)
treef7abb08bfdf35d1e876f93d24ce44072d2f6ed72 /include/net/inet_sock.h
parentf5539b5bfa2e00f2a6fd35731db66142a2f327c0 (diff)
downloadlinux-1d7138de878d1d4210727c1200193e69596f93b3.tar.xz
igmp: RCU conversion of in_dev->mc_list
in_dev->mc_list is protected by one rwlock (in_dev->mc_list_lock). This can easily be converted to a RCU protection. Writers hold RTNL, so mc_list_lock is removed, not replaced by a spinlock. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Cypher Wu <cypher.w@gmail.com> Cc: Américo Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/inet_sock.h')
-rw-r--r--include/net/inet_sock.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index 1989cfd7405f..8945f9fb192a 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -141,7 +141,7 @@ struct inet_sock {
nodefrag:1;
int mc_index;
__be32 mc_addr;
- struct ip_mc_socklist *mc_list;
+ struct ip_mc_socklist __rcu *mc_list;
struct {
unsigned int flags;
unsigned int fragsize;