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| author | Eric Dumazet <edumazet@google.com> | 2016-05-17 17:44:09 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-05-19 11:36:49 -0700 |
| commit | b91083a45e4c41b8c952cf02ceb0ce16f0b1b9b1 (patch) | |
| tree | 694ab01c605470329b19bf7ae06f2d411b8687d9 /net/tipc/server.c | |
| parent | 38036629cded6b96a9f9689758a88d067c4d4d44 (diff) | |
| download | linux-stable-b91083a45e4c41b8c952cf02ceb0ce16f0b1b9b1.tar.gz linux-stable-b91083a45e4c41b8c952cf02ceb0ce16f0b1b9b1.tar.bz2 linux-stable-b91083a45e4c41b8c952cf02ceb0ce16f0b1b9b1.zip | |
tipc: 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 <edumazet@google.com>
Cc: Jon Maloy <jon.maloy@ericsson.com>
Cc: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc/server.c')
| -rw-r--r-- | net/tipc/server.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/net/tipc/server.c b/net/tipc/server.c index 7a0af2dc0406..272d20a795d5 100644 --- a/net/tipc/server.c +++ b/net/tipc/server.c @@ -138,28 +138,28 @@ static void sock_data_ready(struct sock *sk) { struct tipc_conn *con; - read_lock(&sk->sk_callback_lock); + read_lock_bh(&sk->sk_callback_lock); con = sock2con(sk); if (con && test_bit(CF_CONNECTED, &con->flags)) { conn_get(con); if (!queue_work(con->server->rcv_wq, &con->rwork)) conn_put(con); } - read_unlock(&sk->sk_callback_lock); + read_unlock_bh(&sk->sk_callback_lock); } static void sock_write_space(struct sock *sk) { struct tipc_conn *con; - read_lock(&sk->sk_callback_lock); + read_lock_bh(&sk->sk_callback_lock); con = sock2con(sk); if (con && test_bit(CF_CONNECTED, &con->flags)) { conn_get(con); if (!queue_work(con->server->send_wq, &con->swork)) conn_put(con); } - read_unlock(&sk->sk_callback_lock); + read_unlock_bh(&sk->sk_callback_lock); } static void tipc_register_callbacks(struct socket *sock, struct tipc_conn *con) |