[PATCH net-next 10/10] net/smc: no close wait in case of process shut down

[Ursula Braun]

Usually socket closing is delayed if there is still data available in
the send buffer to be transmitted. If a process is killed, the delay
should be avoided.

Signed-off-by: Ursula Braun <ubr...@linux.vnet.ibm.com>
---
 net/smc/smc_close.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/net/smc/smc_close.c b/net/smc/smc_close.c
index 5201bc103bd8..f0d16fb825f7 100644
--- a/net/smc/smc_close.c
+++ b/net/smc/smc_close.c
@@ -174,15 +174,15 @@ int smc_close_active(struct smc_sock *smc)
 {
        struct smc_cdc_conn_state_flags *txflags =
                &smc->conn.local_tx_ctrl.conn_state_flags;
-       long timeout = SMC_MAX_STREAM_WAIT_TIMEOUT;
        struct smc_connection *conn = &smc->conn;
        struct sock *sk = &smc->sk;
        int old_state;
+       long timeout;
        int rc = 0;
 
-       if (sock_flag(sk, SOCK_LINGER) &&
-           !(current->flags & PF_EXITING))
-               timeout = sk->sk_lingertime;
+       timeout = current->flags & PF_EXITING ?
+                 0 : sock_flag(sk, SOCK_LINGER) ?
+                     sk->sk_lingertime : SMC_MAX_STREAM_WAIT_TIMEOUT;
 
 again:
        old_state = sk->sk_state;
@@ -413,13 +413,14 @@ void smc_close_sock_put_work(struct work_struct *work)
 int smc_close_shutdown_write(struct smc_sock *smc)
 {
        struct smc_connection *conn = &smc->conn;
-       long timeout = SMC_MAX_STREAM_WAIT_TIMEOUT;
        struct sock *sk = &smc->sk;
        int old_state;
+       long timeout;
        int rc = 0;
 
-       if (sock_flag(sk, SOCK_LINGER))
-               timeout = sk->sk_lingertime;
+       timeout = current->flags & PF_EXITING ?
+                 0 : sock_flag(sk, SOCK_LINGER) ?
+                     sk->sk_lingertime : SMC_MAX_STREAM_WAIT_TIMEOUT;
 
 again:
        old_state = sk->sk_state;
-- 
2.13.5