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net/smc: allow sysctl rmem and wmem defaults for servers

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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>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ursula Braun 2018-08-08 14:13:20 +02:00 committed by David S. Miller
parent caa21e19e0
commit bd58c7e086
1 changed files with 2 additions and 0 deletions
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2
net/smc/af_smc.c
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@ -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);