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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 /include/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 'include/net')
-rw-r--r--include/net/sock.h8
1 files changed, 5 insertions, 3 deletions
diff --git a/include/net/sock.h b/include/net/sock.h
index 1f15937ec208..8b1f8e5d3a48 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1162,10 +1162,12 @@ static inline void sk_enter_memory_pressure(struct sock *sk)
static inline long sk_prot_mem_limits(const struct sock *sk, int index)
{
- long *prot = sk->sk_prot->sysctl_mem;
+ long limit = sk->sk_prot->sysctl_mem[index];
+
if (mem_cgroup_sockets_enabled && sk->sk_cgrp)
- prot = sk->sk_cgrp->sysctl_mem;
- return prot[index];
+ limit = min_t(long, limit, sk->sk_cgrp->memory_allocated.limit);
+
+ return limit;
}
static inline void memcg_memory_allocated_add(struct cg_proto *prot,