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authorJohannes Weiner <hannes@cmpxchg.org>2016-01-15 02:21:11 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-01-15 03:00:49 +0300
commit80f23124f57c77915a7b4201d8dcba38a38b23f0 (patch)
treed370c585d71dc17fc9b48034cdcda5b6e1b36b22 /net
parentaf95d7df4059cfeab7e7c244f3564214aada7dad (diff)
downloadlinux-80f23124f57c77915a7b4201d8dcba38a38b23f0.tar.xz
net: tcp_memcontrol: simplify the per-memcg limit access
tcp_memcontrol replicates the global sysctl_mem limit array per cgroup, but it only ever sets these entries to the value of the memory_allocated page_counter limit. Use the latter directly. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: Vladimir Davydov <vdavydov@virtuozzo.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/tcp_memcontrol.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/net/ipv4/tcp_memcontrol.c b/net/ipv4/tcp_memcontrol.c
index 6759e0d6bba1..ef4268d12e43 100644
--- a/net/ipv4/tcp_memcontrol.c
+++ b/net/ipv4/tcp_memcontrol.c
@@ -21,9 +21,6 @@ int tcp_init_cgroup(struct mem_cgroup *memcg, struct cgroup_subsys *ss)
if (!cg_proto)
return 0;
- cg_proto->sysctl_mem[0] = sysctl_tcp_mem[0];
- cg_proto->sysctl_mem[1] = sysctl_tcp_mem[1];
- cg_proto->sysctl_mem[2] = sysctl_tcp_mem[2];
cg_proto->memory_pressure = 0;
cg_proto->memcg = memcg;
@@ -54,7 +51,6 @@ EXPORT_SYMBOL(tcp_destroy_cgroup);
static int tcp_update_limit(struct mem_cgroup *memcg, unsigned long nr_pages)
{
struct cg_proto *cg_proto;
- int i;
int ret;
cg_proto = tcp_prot.proto_cgroup(memcg);
@@ -65,10 +61,6 @@ static int tcp_update_limit(struct mem_cgroup *memcg, unsigned long nr_pages)
if (ret)
return ret;
- for (i = 0; i < 3; i++)
- cg_proto->sysctl_mem[i] = min_t(long, nr_pages,
- sysctl_tcp_mem[i]);
-
if (!cg_proto->active) {
/*
* The active flag needs to be written after the static_key