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tcp: Namespace-ify sysctl_tcp_autocorking

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Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2017-10-27 07:47:29 -07:00 committed by David S. Miller
parent bd23970429
commit 790f00e19f
5 changed files with 12 additions and 13 deletions
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1
include/net/netns/ipv4.h
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@ -150,6 +150,7 @@ struct netns_ipv4 {
int sysctl_tcp_challenge_ack_limit; int sysctl_tcp_challenge_ack_limit;
int sysctl_tcp_min_tso_segs; int sysctl_tcp_min_tso_segs;
int sysctl_tcp_min_rtt_wlen; int sysctl_tcp_min_rtt_wlen;
int sysctl_tcp_autocorking;
struct inet_timewait_death_row tcp_death_row; struct inet_timewait_death_row tcp_death_row;
int sysctl_max_syn_backlog; int sysctl_max_syn_backlog;
int sysctl_tcp_fastopen; int sysctl_tcp_fastopen;

1
include/net/tcp.h
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@ -250,7 +250,6 @@ extern int sysctl_tcp_rmem[3];
#define TCP_RACK_LOSS_DETECTION 0x1 /* Use RACK to detect losses */ #define TCP_RACK_LOSS_DETECTION 0x1 /* Use RACK to detect losses */
extern int sysctl_tcp_autocorking;
extern int sysctl_tcp_invalid_ratelimit; extern int sysctl_tcp_invalid_ratelimit;
extern int sysctl_tcp_pacing_ss_ratio; extern int sysctl_tcp_pacing_ss_ratio;
extern int sysctl_tcp_pacing_ca_ratio; extern int sysctl_tcp_pacing_ca_ratio;

18
net/ipv4/sysctl_net_ipv4.c
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@ -510,15 +510,6 @@ static struct ctl_table ipv4_table[] = {
.extra1 = &zero, .extra1 = &zero,
.extra2 = &thousand, .extra2 = &thousand,
}, },
{
.procname = "tcp_autocorking",
.data = &sysctl_tcp_autocorking,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &zero,
.extra2 = &one,
},
{ {
.procname = "tcp_invalid_ratelimit", .procname = "tcp_invalid_ratelimit",
.data = &sysctl_tcp_invalid_ratelimit, .data = &sysctl_tcp_invalid_ratelimit,
@ -1145,6 +1136,15 @@ static struct ctl_table ipv4_net_table[] = {
.mode = 0644, .mode = 0644,
.proc_handler = proc_dointvec .proc_handler = proc_dointvec
}, },
{
.procname = "tcp_autocorking",
.data = &init_net.ipv4.sysctl_tcp_autocorking,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &zero,
.extra2 = &one,
},
{ } { }
}; };

4
net/ipv4/tcp.c
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@ -285,8 +285,6 @@
#include <trace/events/tcp.h> #include <trace/events/tcp.h>
int sysctl_tcp_autocorking __read_mostly = 1;
struct percpu_counter tcp_orphan_count; struct percpu_counter tcp_orphan_count;
EXPORT_SYMBOL_GPL(tcp_orphan_count); EXPORT_SYMBOL_GPL(tcp_orphan_count);
@ -697,7 +695,7 @@ static bool tcp_should_autocork(struct sock *sk, struct sk_buff *skb,
int size_goal) int size_goal)
{ {
return skb->len < size_goal && return skb->len < size_goal &&
sysctl_tcp_autocorking && sock_net(sk)->ipv4.sysctl_tcp_autocorking &&
skb != tcp_write_queue_head(sk) && skb != tcp_write_queue_head(sk) &&
refcount_read(&sk->sk_wmem_alloc) > skb->truesize; refcount_read(&sk->sk_wmem_alloc) > skb->truesize;
} }

1
net/ipv4/tcp_ipv4.c
View File

@ -2505,6 +2505,7 @@ static int __net_init tcp_sk_init(struct net *net)
net->ipv4.sysctl_tcp_challenge_ack_limit = 1000; net->ipv4.sysctl_tcp_challenge_ack_limit = 1000;
net->ipv4.sysctl_tcp_min_tso_segs = 2; net->ipv4.sysctl_tcp_min_tso_segs = 2;
net->ipv4.sysctl_tcp_min_rtt_wlen = 300; net->ipv4.sysctl_tcp_min_rtt_wlen = 300;
net->ipv4.sysctl_tcp_autocorking = 1;
net->ipv4.sysctl_tcp_fastopen = TFO_CLIENT_ENABLE; net->ipv4.sysctl_tcp_fastopen = TFO_CLIENT_ENABLE;
spin_lock_init(&net->ipv4.tcp_fastopen_ctx_lock); spin_lock_init(&net->ipv4.tcp_fastopen_ctx_lock);