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authorEric Dumazet <edumazet@google.com>2017-11-07 00:29:28 -0800
committerDavid S. Miller <davem@davemloft.net>2017-11-10 14:34:58 +0900
commit356d1833b638bd465672aefeb71def3ab93fc17d (patch)
tree68354249261e8de8d367bfc21bb2969ecb9053d6 /net/ipv4/sysctl_net_ipv4.c
parenta3dcaf17ee54f1d01d22cc2b22cab0b4f60d78cf (diff)
downloadlinux-next-356d1833b638bd465672aefeb71def3ab93fc17d.tar.gz
tcp: Namespace-ify sysctl_tcp_rmem and sysctl_tcp_wmem
Note that when a new netns is created, it inherits its sysctl_tcp_rmem and sysctl_tcp_wmem from initial netns. This change is needed so that we can refine TCP rcvbuf autotuning, to take RTT into consideration. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Wei Wang <weiwan@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/sysctl_net_ipv4.c')
-rw-r--r--net/ipv4/sysctl_net_ipv4.c32
1 files changed, 16 insertions, 16 deletions
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index a82b44038308..ef0ff3357a44 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -441,22 +441,6 @@ static struct ctl_table ipv4_table[] = {
.proc_handler = proc_doulongvec_minmax,
},
{
- .procname = "tcp_wmem",
- .data = &sysctl_tcp_wmem,
- .maxlen = sizeof(sysctl_tcp_wmem),
- .mode = 0644,
- .proc_handler = proc_dointvec_minmax,
- .extra1 = &one,
- },
- {
- .procname = "tcp_rmem",
- .data = &sysctl_tcp_rmem,
- .maxlen = sizeof(sysctl_tcp_rmem),
- .mode = 0644,
- .proc_handler = proc_dointvec_minmax,
- .extra1 = &one,
- },
- {
.procname = "tcp_low_latency",
.data = &sysctl_tcp_low_latency,
.maxlen = sizeof(int),
@@ -1164,6 +1148,22 @@ static struct ctl_table ipv4_net_table[] = {
.extra1 = &zero,
.extra2 = &thousand,
},
+ {
+ .procname = "tcp_wmem",
+ .data = &init_net.ipv4.sysctl_tcp_wmem,
+ .maxlen = sizeof(init_net.ipv4.sysctl_tcp_wmem),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &one,
+ },
+ {
+ .procname = "tcp_rmem",
+ .data = &init_net.ipv4.sysctl_tcp_rmem,
+ .maxlen = sizeof(init_net.ipv4.sysctl_tcp_rmem),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &one,
+ },
{ }
};