From: Ying Xue <ying.xue@windriver.com>
Date: Sun, 19 Aug 2012 21:44:08 +0000 (+0000)
Subject: rds: Don't disable BH on BH context
X-Git-Tag: MMI-PSA29.97-13-9~15870^2~294
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=bfdc587c5af4ff155cf702b972e8fcd66d77d5f2;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git

rds: Don't disable BH on BH context

Since we have already in BH context when *_write_space(),
*_data_ready() as well as *_state_change() are called, it's
unnecessary to disable BH.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/rds/tcp_connect.c b/net/rds/tcp_connect.c
index af95c8e058fc..a65ee78db0c5 100644
--- a/net/rds/tcp_connect.c
+++ b/net/rds/tcp_connect.c
@@ -43,7 +43,7 @@ void rds_tcp_state_change(struct sock *sk)
 	struct rds_connection *conn;
 	struct rds_tcp_connection *tc;
 
-	read_lock_bh(&sk->sk_callback_lock);
+	read_lock(&sk->sk_callback_lock);
 	conn = sk->sk_user_data;
 	if (!conn) {
 		state_change = sk->sk_state_change;
@@ -68,7 +68,7 @@ void rds_tcp_state_change(struct sock *sk)
 			break;
 	}
 out:
-	read_unlock_bh(&sk->sk_callback_lock);
+	read_unlock(&sk->sk_callback_lock);
 	state_change(sk);
 }
 
diff --git a/net/rds/tcp_listen.c b/net/rds/tcp_listen.c
index 72981375f47c..7787537e9c2e 100644
--- a/net/rds/tcp_listen.c
+++ b/net/rds/tcp_listen.c
@@ -114,7 +114,7 @@ void rds_tcp_listen_data_ready(struct sock *sk, int bytes)
 
 	rdsdebug("listen data ready sk %p\n", sk);
 
-	read_lock_bh(&sk->sk_callback_lock);
+	read_lock(&sk->sk_callback_lock);
 	ready = sk->sk_user_data;
 	if (!ready) { /* check for teardown race */
 		ready = sk->sk_data_ready;
@@ -131,7 +131,7 @@ void rds_tcp_listen_data_ready(struct sock *sk, int bytes)
 		queue_work(rds_wq, &rds_tcp_listen_work);
 
 out:
-	read_unlock_bh(&sk->sk_callback_lock);
+	read_unlock(&sk->sk_callback_lock);
 	ready(sk, bytes);
 }
 
diff --git a/net/rds/tcp_recv.c b/net/rds/tcp_recv.c
index 6243258f840f..4fac4f2bb9dc 100644
--- a/net/rds/tcp_recv.c
+++ b/net/rds/tcp_recv.c
@@ -322,7 +322,7 @@ void rds_tcp_data_ready(struct sock *sk, int bytes)
 
 	rdsdebug("data ready sk %p bytes %d\n", sk, bytes);
 
-	read_lock_bh(&sk->sk_callback_lock);
+	read_lock(&sk->sk_callback_lock);
 	conn = sk->sk_user_data;
 	if (!conn) { /* check for teardown race */
 		ready = sk->sk_data_ready;
@@ -336,7 +336,7 @@ void rds_tcp_data_ready(struct sock *sk, int bytes)
 	if (rds_tcp_read_sock(conn, GFP_ATOMIC) == -ENOMEM)
 		queue_delayed_work(rds_wq, &conn->c_recv_w, 0);
 out:
-	read_unlock_bh(&sk->sk_callback_lock);
+	read_unlock(&sk->sk_callback_lock);
 	ready(sk, bytes);
 }
 
diff --git a/net/rds/tcp_send.c b/net/rds/tcp_send.c
index 1b4fd68f0c7c..81cf5a4c5e40 100644
--- a/net/rds/tcp_send.c
+++ b/net/rds/tcp_send.c
@@ -174,7 +174,7 @@ void rds_tcp_write_space(struct sock *sk)
 	struct rds_connection *conn;
 	struct rds_tcp_connection *tc;
 
-	read_lock_bh(&sk->sk_callback_lock);
+	read_lock(&sk->sk_callback_lock);
 	conn = sk->sk_user_data;
 	if (!conn) {
 		write_space = sk->sk_write_space;
@@ -194,7 +194,7 @@ void rds_tcp_write_space(struct sock *sk)
 		queue_delayed_work(rds_wq, &conn->c_send_w, 0);
 
 out:
-	read_unlock_bh(&sk->sk_callback_lock);
+	read_unlock(&sk->sk_callback_lock);
 
 	/*
 	 * write_space is only called when data leaves tcp's send queue if