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tcp: Namespace-ify sysctl_tcp_invalid_ratelimit

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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 07:47:30 -07:00 committed by David S. Miller
parent 790f00e19f
commit 4170ba6b58
5 changed files with 10 additions and 10 deletions
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1
include/net/netns/ipv4.h
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@ -151,6 +151,7 @@ struct netns_ipv4 {
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; int sysctl_tcp_autocorking;
int sysctl_tcp_invalid_ratelimit;
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_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;

14
net/ipv4/sysctl_net_ipv4.c
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@ -510,13 +510,6 @@ static struct ctl_table ipv4_table[] = {
.extra1 = &zero, .extra1 = &zero,
.extra2 = &thousand, .extra2 = &thousand,
}, },
{
.procname = "tcp_invalid_ratelimit",
.data = &sysctl_tcp_invalid_ratelimit,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_ms_jiffies,
},
{ {
.procname = "tcp_available_ulp", .procname = "tcp_available_ulp",
.maxlen = TCP_ULP_BUF_MAX, .maxlen = TCP_ULP_BUF_MAX,
@ -1145,6 +1138,13 @@ static struct ctl_table ipv4_net_table[] = {
.extra1 = &zero, .extra1 = &zero,
.extra2 = &one, .extra2 = &one,
}, },
{
.procname = "tcp_invalid_ratelimit",
.data = &init_net.ipv4.sysctl_tcp_invalid_ratelimit,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_ms_jiffies,
},
{ } { }
}; };

3
net/ipv4/tcp_input.c
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@ -80,7 +80,6 @@
#include <linux/static_key.h> #include <linux/static_key.h>
int sysctl_tcp_max_orphans __read_mostly = NR_FILE; int sysctl_tcp_max_orphans __read_mostly = NR_FILE;
int sysctl_tcp_invalid_ratelimit __read_mostly = HZ/2;
#define FLAG_DATA 0x01 /* Incoming frame contained data. */ #define FLAG_DATA 0x01 /* Incoming frame contained data. */
#define FLAG_WIN_UPDATE 0x02 /* Incoming ACK was a window update. */ #define FLAG_WIN_UPDATE 0x02 /* Incoming ACK was a window update. */
@ -3403,7 +3402,7 @@ static bool __tcp_oow_rate_limited(struct net *net, int mib_idx,
if (*last_oow_ack_time) { if (*last_oow_ack_time) {
s32 elapsed = (s32)(tcp_jiffies32 - *last_oow_ack_time); s32 elapsed = (s32)(tcp_jiffies32 - *last_oow_ack_time);
if (0 <= elapsed && elapsed < sysctl_tcp_invalid_ratelimit) { if (0 <= elapsed && elapsed < net->ipv4.sysctl_tcp_invalid_ratelimit) {
NET_INC_STATS(net, mib_idx); NET_INC_STATS(net, mib_idx);
return true; /* rate-limited: don't send yet! */ return true; /* rate-limited: don't send yet! */
} }

1
net/ipv4/tcp_ipv4.c
View File

@ -2506,6 +2506,7 @@ static int __net_init tcp_sk_init(struct net *net)
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_autocorking = 1;
net->ipv4.sysctl_tcp_invalid_ratelimit = HZ/2;
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);