From: Ursula Braun <ubraun@linux.ibm.com>
To: davem@davemloft.net
Cc: netdev@vger.kernel.org, linux-s390@vger.kernel.org,
schwidefsky@de.ibm.com, heiko.carstens@de.ibm.com,
raspl@linux.ibm.com, linux-kernel@vger.kernel.org
Subject: [PATCH net 2/3] net/smc: allow sysctl rmem and wmem defaults for servers
Date: Wed, 8 Aug 2018 14:13:20 +0200 [thread overview]
Message-ID: <20180808121321.516-3-ubraun@linux.ibm.com> (raw)
In-Reply-To: <20180808121321.516-1-ubraun@linux.ibm.com>
Without setsockopt SO_SNDBUF and SO_RCVBUF settings, the sysctl
defaults net.ipv4.tcp_wmem and net.ipv4.tcp_rmem should be the base
for the sizes of the SMC sndbuf and rcvbuf. Any TCP buffer size
optimizations for servers should be ignored.
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
---
net/smc/af_smc.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index 1288c7bf40d5..0ee7721afbe5 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -1122,6 +1122,8 @@ static void smc_tcp_listen_work(struct work_struct *work)
sock_hold(lsk); /* sock_put in smc_listen_work */
INIT_WORK(&new_smc->smc_listen_work, smc_listen_work);
smc_copy_sock_settings_to_smc(new_smc);
+ new_smc->sk.sk_sndbuf = lsmc->sk.sk_sndbuf;
+ new_smc->sk.sk_rcvbuf = lsmc->sk.sk_rcvbuf;
sock_hold(&new_smc->sk); /* sock_put in passive closing */
if (!schedule_work(&new_smc->smc_listen_work))
sock_put(&new_smc->sk);
--
2.16.4
next prev parent reply other threads:[~2018-08-08 12:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-08 12:13 [PATCH net 0/3] net/smc: fixes 2018-08-08 Ursula Braun
2018-08-08 12:13 ` [PATCH net 1/3] net/smc: no shutdown in state SMC_LISTEN Ursula Braun
2018-08-08 12:13 ` Ursula Braun [this message]
2018-08-08 12:13 ` [PATCH net 3/3] net/smc: move sock lock in smc_ioctl() Ursula Braun
2018-08-09 2:14 ` [PATCH net 0/3] net/smc: fixes 2018-08-08 David Miller
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