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RFC: ANDROID: net: ipv4: tcp: Namespace-ify sysctl_tcp_default_init_rwnd

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Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
This commit is contained in:
Amit Pundir
2018-01-08 22:51:52 +05:30
parent 5680ed8d87
commit 1e9a9ffbbd
5 changed files with 9 additions and 10 deletions
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1
include/net/netns/ipv4.h
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@@ -159,6 +159,7 @@ struct netns_ipv4 {
int sysctl_tcp_invalid_ratelimit;
int sysctl_tcp_pacing_ss_ratio;
int sysctl_tcp_pacing_ca_ratio;
int sysctl_tcp_default_init_rwnd;
int sysctl_tcp_wmem[3];
int sysctl_tcp_rmem[3];
int sysctl_tcp_comp_sack_nr;

2
include/net/tcp.h
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@@ -248,8 +248,6 @@ extern long sysctl_tcp_mem[3];
#define TCP_RACK_STATIC_REO_WND 0x2 /* Use static RACK reo wnd */
#define TCP_RACK_NO_DUPTHRESH 0x4 /* Do not use DUPACK threshold in RACK */
extern int sysctl_tcp_default_init_rwnd;
extern atomic_long_t tcp_memory_allocated;
extern struct percpu_counter tcp_sockets_allocated;
extern unsigned long tcp_memory_pressure;

14
net/ipv4/sysctl_net_ipv4.c
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@@ -540,13 +540,6 @@ static struct ctl_table ipv4_table[] = {
.mode = 0444,
.proc_handler = proc_tcp_available_ulp,
},
{
.procname = "tcp_default_init_rwnd",
.data = &sysctl_tcp_default_init_rwnd,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_tcp_default_init_rwnd
},
{
.procname = "icmp_msgs_per_sec",
.data = &sysctl_icmp_msgs_per_sec,
@@ -1196,6 +1189,13 @@ static struct ctl_table ipv4_net_table[] = {
.extra1 = &zero,
.extra2 = &thousand,
},
{
.procname = "tcp_default_init_rwnd",
.data = &init_net.ipv4.sysctl_tcp_default_init_rwnd,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_tcp_default_init_rwnd
},
{
.procname = "tcp_wmem",
.data = &init_net.ipv4.sysctl_tcp_wmem,

1
net/ipv4/tcp_input.c
View File

@@ -81,7 +81,6 @@
#include <net/busy_poll.h>
int sysctl_tcp_max_orphans __read_mostly = NR_FILE;
int sysctl_tcp_default_init_rwnd __read_mostly = TCP_INIT_CWND * 2;
#define FLAG_DATA 0x01 /* Incoming frame contained data. */
#define FLAG_WIN_UPDATE 0x02 /* Incoming ACK was a window update. */

1
net/ipv4/tcp_ipv4.c
View File

@@ -2575,6 +2575,7 @@ static int __net_init tcp_sk_init(struct net *net)
net->ipv4.sysctl_tcp_invalid_ratelimit = HZ/2;
net->ipv4.sysctl_tcp_pacing_ss_ratio = 200;
net->ipv4.sysctl_tcp_pacing_ca_ratio = 120;
net->ipv4.sysctl_tcp_default_init_rwnd = TCP_INIT_CWND * 2;
if (net != &init_net) {
memcpy(net->ipv4.sysctl_tcp_rmem,
init_net.ipv4.sysctl_tcp_rmem,