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authorChris Mason <clm@fb.com>2016-05-17 14:43:19 -0700
committerChris Mason <clm@fb.com>2016-05-17 14:43:19 -0700
commitc315ef8d9db7f1a0ebd023a395ebdfde1c68057e (patch)
tree501e1fc558de9e56b78e457aa928fa255e660486 /net/rds/tcp_connect.c
parenta88336d13c66fc171f336c6332fcb67339894e08 (diff)
parent5f9a8a51d8b95505d8de8b7191ae2ed8c504d4af (diff)
downloadlinux-c315ef8d9db7f1a0ebd023a395ebdfde1c68057e.tar.bz2
Merge branch 'for-chris-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/fdmanana/linux into for-linus-4.7
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'net/rds/tcp_connect.c')
-rw-r--r--net/rds/tcp_connect.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/net/rds/tcp_connect.c b/net/rds/tcp_connect.c
index 5cb16875c460..49a3fcfed360 100644
--- a/net/rds/tcp_connect.c
+++ b/net/rds/tcp_connect.c
@@ -78,7 +78,14 @@ int rds_tcp_conn_connect(struct rds_connection *conn)
struct socket *sock = NULL;
struct sockaddr_in src, dest;
int ret;
+ struct rds_tcp_connection *tc = conn->c_transport_data;
+
+ mutex_lock(&tc->t_conn_lock);
+ if (rds_conn_up(conn)) {
+ mutex_unlock(&tc->t_conn_lock);
+ return 0;
+ }
ret = sock_create_kern(rds_conn_net(conn), PF_INET,
SOCK_STREAM, IPPROTO_TCP, &sock);
if (ret < 0)
@@ -120,6 +127,7 @@ int rds_tcp_conn_connect(struct rds_connection *conn)
}
out:
+ mutex_unlock(&tc->t_conn_lock);
if (sock)
sock_release(sock);
return ret;