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per-netns ipv4 sysctl_tcp_mem

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This patch allows each namespace to independently set up
its levels for tcp memory pressure thresholds. This patch
alone does not buy much: we need to make this values
per group of process somehow. This is achieved in the
patches that follows in this patchset.

Signed-off-by: Glauber Costa <glommer@parallels.com>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
CC: David S. Miller <davem@davemloft.net>
CC: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Glauber Costa
2011-12-11 21:47:05 +00:00
committed by David S. Miller
parent d1a4c0b37c
commit 3dc43e3e4d
9 changed files with 57 additions and 22 deletions
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1
include/net/netns/ipv4.h
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@@ -55,6 +55,7 @@ struct netns_ipv4 {
int current_rt_cache_rebuild_count;
unsigned int sysctl_ping_group_range[2];
long sysctl_tcp_mem[3];
atomic_t rt_genid;
atomic_t dev_addr_genid;