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net/smc: short wait for late smc_clc_wait_msg

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After sending one of the initial LLC messages CONFIRM LINK or
ADD LINK, there is already a wait for the LLC response. It does
not make sense to wait another long time for a CLC DECLINE. Thus
this patch introduces a shorter wait time for these cases.

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
2018-11-22 10:26:39 +01:00
committed by David S. Miller
parent 90d8b29cb4
commit 2b59f58e34
3 changed files with 13 additions and 11 deletions
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6
net/smc/smc_clc.c
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@@ -265,7 +265,7 @@ out:
* clcsock error, -EINTR, -ECONNRESET, -EPROTO otherwise.
*/
int smc_clc_wait_msg(struct smc_sock *smc, void *buf, int buflen,
u8 expected_type)
u8 expected_type, unsigned long timeout)
{
long rcvtimeo = smc->clcsock->sk->sk_rcvtimeo;
struct sock *clc_sk = smc->clcsock->sk;
@@ -285,7 +285,7 @@ int smc_clc_wait_msg(struct smc_sock *smc, void *buf, int buflen,
* sizeof(struct smc_clc_msg_hdr)
*/
krflags = MSG_PEEK | MSG_WAITALL;
smc->clcsock->sk->sk_rcvtimeo = CLC_WAIT_TIME;
clc_sk->sk_rcvtimeo = timeout;
iov_iter_kvec(&msg.msg_iter, READ, &vec, 1,
sizeof(struct smc_clc_msg_hdr));
len = sock_recvmsg(smc->clcsock, &msg, krflags);
@@ -351,7 +351,7 @@ int smc_clc_wait_msg(struct smc_sock *smc, void *buf, int buflen,
}
out:
smc->clcsock->sk->sk_rcvtimeo = rcvtimeo;
clc_sk->sk_rcvtimeo = rcvtimeo;
return reason_code;
}