diff options
| author | Johannes Weiner <hannes@cmpxchg.org> | 2016-01-15 02:21:11 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-01-15 03:00:49 +0300 |
| commit | 80f23124f57c77915a7b4201d8dcba38a38b23f0 (patch) | |
| tree | d370c585d71dc17fc9b48034cdcda5b6e1b36b22 /include | |
| parent | af95d7df4059cfeab7e7c244f3564214aada7dad (diff) | |
| download | linux-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')
| -rw-r--r-- | include/linux/memcontrol.h | 1 | ||||
| -rw-r--r-- | include/net/sock.h | 8 |
2 files changed, 5 insertions, 4 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 15acc04ebdd3..6c91c1b73951 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -89,7 +89,6 @@ struct cg_proto { struct page_counter memory_allocated; /* Current allocated memory. */ int memory_pressure; bool active; - long sysctl_mem[3]; /* * memcg field is used to find which memcg we belong directly * Each memcg struct can hold more than one cg_proto, so container_of 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, |