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net/smc: correct state change for peer closing 

If some kind of closing is received from the peer while still in
state SMC_INIT, it means the peer has had an active connection and
closed the socket quickly before listen_work finished. This should
not result in a shortcut from state SMC_INIT to state SMC_CLOSED.
This patch adds the socket to the accept queue in state
SMC_APPCLOSEWAIT1. The socket reaches state SMC_CLOSED once being
accepted and closed with smc_release().

Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ursula Braun 2019-02-04 13:44:47 +01:00 committed by David S. Miller
parent a5e04318c8
commit 84b799a292
1 changed files with 1 additions and 8 deletions
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7
net/smc/smc_close.c
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@ -345,14 +345,7 @@ static void smc_close_passive_work(struct work_struct *work)
switch (sk->sk_state) {
case SMC_INIT:
if (atomic_read(&conn->bytes_to_rcv) ||
(rxflags->peer_done_writing &&
!smc_cdc_rxed_any_close(conn))) {
sk->sk_state = SMC_APPCLOSEWAIT1;
} else {
sk->sk_state = SMC_CLOSED;
sock_put(sk); /* passive closing */
}
break;
case SMC_ACTIVE:
sk->sk_state = SMC_APPCLOSEWAIT1;