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net/smc: reset recv timeout after clc handshake 

During clc handshake the receive timeout is set to CLC_WAIT_TIME.
Remember and reset the original timeout value after the receive calls,
and remove a duplicate assignment of CLC_WAIT_TIME.

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 2018-07-18 15:22:51 +02:00 committed by David S. Miller
parent ac0107edba
commit f6bdc42f02
1 changed files with 2 additions and 1 deletions
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3
net/smc/smc_clc.c
View File

@ -250,6 +250,7 @@ out:
int smc_clc_wait_msg(struct smc_sock *smc, void *buf, int buflen,
u8 expected_type)
{
long rcvtimeo = smc->clcsock->sk->sk_rcvtimeo;
struct sock *clc_sk = smc->clcsock->sk;
struct smc_clc_msg_hdr *clcm = buf;
struct msghdr msg = {NULL, 0};
@ -306,7 +307,6 @@ int smc_clc_wait_msg(struct smc_sock *smc, void *buf, int buflen,
memset(&msg, 0, sizeof(struct msghdr));
iov_iter_kvec(&msg.msg_iter, READ | ITER_KVEC, &vec, 1, datlen);
krflags = MSG_WAITALL;
smc->clcsock->sk->sk_rcvtimeo = CLC_WAIT_TIME;
len = sock_recvmsg(smc->clcsock, &msg, krflags);
if (len < datlen || !smc_clc_msg_hdr_valid(clcm)) {
smc->sk.sk_err = EPROTO;
@ -322,6 +322,7 @@ int smc_clc_wait_msg(struct smc_sock *smc, void *buf, int buflen,
}
out:
smc->clcsock->sk->sk_rcvtimeo = rcvtimeo;
return reason_code;
}