From 38036629cded6b96a9f9689758a88d067c4d4d44 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 17 May 2016 17:44:08 -0700 Subject: rds: tcp: block BH in TCP callbacks TCP stack can now run from process context. Use read_lock_bh(&sk->sk_callback_lock) variant to restore previous assumption. Fixes: 5413d1babe8f ("net: do not block BH while processing socket backlog") Fixes: d41a69f1d390 ("tcp: make tcp_sendmsg() aware of socket backlog") Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/rds/tcp_send.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'net/rds/tcp_send.c') diff --git a/net/rds/tcp_send.c b/net/rds/tcp_send.c index 2894e6095e3b..22d0f2020a79 100644 --- a/net/rds/tcp_send.c +++ b/net/rds/tcp_send.c @@ -180,7 +180,7 @@ void rds_tcp_write_space(struct sock *sk) struct rds_connection *conn; struct rds_tcp_connection *tc; - read_lock(&sk->sk_callback_lock); + read_lock_bh(&sk->sk_callback_lock); conn = sk->sk_user_data; if (!conn) { write_space = sk->sk_write_space; @@ -200,7 +200,7 @@ void rds_tcp_write_space(struct sock *sk) queue_delayed_work(rds_wq, &conn->c_send_w, 0); out: - read_unlock(&sk->sk_callback_lock); + read_unlock_bh(&sk->sk_callback_lock); /* * write_space is only called when data leaves tcp's send queue if -- cgit v1.2.3