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authorUrsula Braun <ubraun@linux.vnet.ibm.com>2018-01-25 11:15:32 +0100
committerDavid S. Miller <davem@davemloft.net>2018-01-25 22:10:42 +0100
commit5ac92a00aa743e76e86503d58f092830486af39b (patch)
tree23d050891785ea6e00b0677d6df569b048a44031 /net/smc
parentnet/smc: cancel tx worker in case of socket aborts (diff)
downloadlinux-5ac92a00aa743e76e86503d58f092830486af39b.tar.xz
linux-5ac92a00aa743e76e86503d58f092830486af39b.zip
net/smc: handle state SMC_PEERFINCLOSEWAIT correctly
A state transition from closing state SMC_PEERFINCLOSEWAIT to closing state SMC_APPFINCLOSEWAIT is not allowed. Once a closing indication from the peer has been received, the socket reaches state SMC_CLOSED. And receiving a peer_conn_abort just changes the state of the socket into one of the states SMC_PROCESSABORT or SMC_CLOSED; sending a peer_conn_abort occurs in smc_close_active() for state SMC_PROCESSABORT only. Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/smc')
-rw-r--r--net/smc/smc_close.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/net/smc/smc_close.c b/net/smc/smc_close.c
index 6de909612bd0..3dc109f5db56 100644
--- a/net/smc/smc_close.c
+++ b/net/smc/smc_close.c
@@ -280,7 +280,6 @@ static void smc_close_passive_abort_received(struct smc_sock *smc)
case SMC_APPFINCLOSEWAIT:
case SMC_APPCLOSEWAIT1:
case SMC_APPCLOSEWAIT2:
- smc_close_abort(&smc->conn);
sk->sk_state = SMC_PROCESSABORT;
break;
case SMC_PEERCLOSEWAIT1:
@@ -288,7 +287,6 @@ static void smc_close_passive_abort_received(struct smc_sock *smc)
if (txflags->peer_done_writing &&
!smc_close_sent_any_close(&smc->conn)) {
/* just shutdown, but not yet closed locally */
- smc_close_abort(&smc->conn);
sk->sk_state = SMC_PROCESSABORT;
} else {
sk->sk_state = SMC_CLOSED;
@@ -354,7 +352,6 @@ static void smc_close_passive_work(struct work_struct *work)
/* fall through */
/* to check for closing */
case SMC_PEERCLOSEWAIT2:
- case SMC_PEERFINCLOSEWAIT:
if (!smc_cdc_rxed_any_close(conn))
break;
if (sock_flag(sk, SOCK_DEAD) &&
@@ -366,6 +363,10 @@ static void smc_close_passive_work(struct work_struct *work)
sk->sk_state = SMC_APPFINCLOSEWAIT;
}
break;
+ case SMC_PEERFINCLOSEWAIT:
+ if (smc_cdc_rxed_any_close(conn))
+ sk->sk_state = SMC_CLOSED;
+ break;
case SMC_APPCLOSEWAIT1:
case SMC_APPCLOSEWAIT2:
case SMC_APPFINCLOSEWAIT: