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| author | Johannes Weiner <hannes@cmpxchg.org> | 2016-01-14 15:21:20 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-01-14 16:00:49 -0800 |
| commit | 80e95fe0fdcde2812c341ad4209d62dc1a7af53b (patch) | |
| tree | fb9c8890f258373ac33c31ead466083f7ceb78c4 /include/linux/memcontrol.h | |
| parent | baac50bbc3cdfd184ebf586b1704edbfcee866df (diff) | |
| download | lwn-80e95fe0fdcde2812c341ad4209d62dc1a7af53b.tar.gz lwn-80e95fe0fdcde2812c341ad4209d62dc1a7af53b.zip | |
mm: memcontrol: generalize the socket accounting jump label
The unified hierarchy memory controller is going to use this jump label
as well to control the networking callbacks. Move it to the memory
controller code and give it a more generic name.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.com>
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/linux/memcontrol.h')
| -rw-r--r-- | include/linux/memcontrol.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 7c085e4636ba..03090e8e7fff 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -681,11 +681,14 @@ void sock_release_memcg(struct sock *sk); bool mem_cgroup_charge_skmem(struct mem_cgroup *memcg, unsigned int nr_pages); void mem_cgroup_uncharge_skmem(struct mem_cgroup *memcg, unsigned int nr_pages); #if defined(CONFIG_MEMCG_KMEM) && defined(CONFIG_INET) +extern struct static_key memcg_sockets_enabled_key; +#define mem_cgroup_sockets_enabled static_key_false(&memcg_sockets_enabled_key) static inline bool mem_cgroup_under_socket_pressure(struct mem_cgroup *memcg) { return memcg->tcp_mem.memory_pressure; } #else +#define mem_cgroup_sockets_enabled 0 static inline bool mem_cgroup_under_socket_pressure(struct mem_cgroup *memcg) { return false; |