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tcp: Namespace-ify sysctl_tcp_recovery 

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2017-10-26 21:54:57 -07:00 committed by David S. Miller
parent 2ae21cf527
commit e20223f196
6 changed files with 11 additions and 11 deletions
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1
include/net/netns/ipv4.h
View File

@ -129,6 +129,7 @@ struct netns_ipv4 {
int sysctl_tcp_window_scaling;
int sysctl_tcp_timestamps;
int sysctl_tcp_early_retrans;
int sysctl_tcp_recovery;
struct inet_timewait_death_row tcp_death_row;
int sysctl_max_syn_backlog;
int sysctl_tcp_fastopen;

2
include/net/tcp.h
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@ -265,7 +265,7 @@ extern int sysctl_tcp_workaround_signed_windows;
extern int sysctl_tcp_slow_start_after_idle;
extern int sysctl_tcp_thin_linear_timeouts;
extern int sysctl_tcp_thin_dupack;
extern int sysctl_tcp_recovery;
#define TCP_RACK_LOSS_DETECTION 0x1 /* Use RACK to detect losses */
extern int sysctl_tcp_limit_output_bytes;

14
net/ipv4/sysctl_net_ipv4.c
View File

@ -449,13 +449,6 @@ static struct ctl_table ipv4_table[] = {
.mode = 0644,
.proc_handler = proc_dointvec
},
{
.procname = "tcp_recovery",
.data = &sysctl_tcp_recovery,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec,
},
{
.procname = "tcp_max_reordering",
.data = &sysctl_tcp_max_reordering,
@ -1145,6 +1138,13 @@ static struct ctl_table ipv4_net_table[] = {
.extra1 = &zero,
.extra2 = &four,
},
{
.procname = "tcp_recovery",
.data = &init_net.ipv4.sysctl_tcp_recovery,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec,
},
{ }
};

2
net/ipv4/tcp_input.c
View File

@ -2788,7 +2788,7 @@ static void tcp_rack_identify_loss(struct sock *sk, int *ack_flag)
struct tcp_sock *tp = tcp_sk(sk);
/* Use RACK to detect loss */
if (sysctl_tcp_recovery & TCP_RACK_LOSS_DETECTION) {
if (sock_net(sk)->ipv4.sysctl_tcp_recovery & TCP_RACK_LOSS_DETECTION) {
u32 prior_retrans = tp->retrans_out;
tcp_rack_mark_lost(sk);

1
net/ipv4/tcp_ipv4.c
View File

@ -2485,6 +2485,7 @@ static int __net_init tcp_sk_init(struct net *net)
net->ipv4.sysctl_tcp_window_scaling = 1;
net->ipv4.sysctl_tcp_timestamps = 1;
net->ipv4.sysctl_tcp_early_retrans = 3;
net->ipv4.sysctl_tcp_recovery = TCP_RACK_LOSS_DETECTION;
net->ipv4.sysctl_tcp_fastopen = TFO_CLIENT_ENABLE;
spin_lock_init(&net->ipv4.tcp_fastopen_ctx_lock);

2
net/ipv4/tcp_recovery.c
View File

@ -1,8 +1,6 @@
#include <linux/tcp.h>
#include <net/tcp.h>
int sysctl_tcp_recovery __read_mostly = TCP_RACK_LOSS_DETECTION;
static void tcp_rack_mark_skb_lost(struct sock *sk, struct sk_buff *skb)
{
struct tcp_sock *tp = tcp_sk(sk);