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ipv4: Namespaceify tcp_tw_recycle and tcp_max_tw_buckets knob

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Different namespace application might require fast recycling
TIME-WAIT sockets independently of the host.

Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Haishuang Yan
2016-12-28 17:52:32 +08:00
committed by David S. Miller
parent 801822d1be
commit 1946e672c1
12 changed files with 48 additions and 50 deletions
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11
include/net/netns/ipv4.h
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@@ -27,6 +27,16 @@ struct ping_group_range {
kgid_t range[2];
};
struct inet_hashinfo;
struct inet_timewait_death_row {
atomic_t tw_count;
struct inet_hashinfo *hashinfo ____cacheline_aligned_in_smp;
int sysctl_tw_recycle;
int sysctl_max_tw_buckets;
};
struct netns_ipv4 {
#ifdef CONFIG_SYSCTL
struct ctl_table_header *forw_hdr;
@@ -111,6 +121,7 @@ struct netns_ipv4 {
int sysctl_tcp_fin_timeout;
unsigned int sysctl_tcp_notsent_lowat;
int sysctl_tcp_tw_reuse;
struct inet_timewait_death_row tcp_death_row;
int sysctl_igmp_max_memberships;
int sysctl_igmp_max_msf;