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net/smc: call smc_cdc_msg_send() under send_lock

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Call smc_cdc_msg_send() under the connection send_lock to make sure all
send operations for one connection are serialized.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Karsten Graul 2019-01-30 18:51:06 +01:00 committed by David S. Miller
parent 33f3fcc290
commit 2dee25af42
1 changed files with 4 additions and 1 deletions
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5
net/smc/smc_cdc.c
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@ -125,7 +125,10 @@ static int smcr_cdc_get_slot_and_msg_send(struct smc_connection *conn)
if (rc)
return rc;
return smc_cdc_msg_send(conn, wr_buf, pend);
spin_lock_bh(&conn->send_lock);
rc = smc_cdc_msg_send(conn, wr_buf, pend);
spin_unlock_bh(&conn->send_lock);
return rc;
}
int smc_cdc_get_slot_and_msg_send(struct smc_connection *conn)