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| author | Michal Hocko <mhocko@suse.cz> | 2012-10-08 16:33:10 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-09 16:22:54 +0900 |
| commit | 4bd2c1ee4b439d926e437a4841e8145230df98c9 (patch) | |
| tree | b9bf448dda9bfb5d428928c7f26fd7c7aad30267 | |
| parent | 1939c557b5c3c0e800328e3589ae3d27fdfea29e (diff) | |
| download | linux-4bd2c1ee4b439d926e437a4841e8145230df98c9.tar.gz linux-4bd2c1ee4b439d926e437a4841e8145230df98c9.tar.bz2 linux-4bd2c1ee4b439d926e437a4841e8145230df98c9.zip | |
memcg: cleanup kmem tcp ifdefs
TCP kmem accounting is currently guarded by CONFIG_MEMCG_KMEM ifdefs but
the code is not used if !CONFIG_INET so we should rather test for both.
The same applies to net/sock.h, net/ip.h and net/tcp_memcontrol.h but
let's keep those outside of any ifdefs because it is considered safer wrt.
future maintainability.
Tested with
- CONFIG_INET && CONFIG_MEMCG_KMEM
- !CONFIG_INET && CONFIG_MEMCG_KMEM
- CONFIG_INET && !CONFIG_MEMCG_KMEM
- !CONFIG_INET && !CONFIG_MEMCG_KMEM
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Michal Hocko <mhocko@suse.cz>
Cc: Glauber Costa <glommer@parallels.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/memcontrol.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index a72f2ffdc3d0..4f5f93657246 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -51,6 +51,7 @@ #include <linux/oom.h> #include "internal.h" #include <net/sock.h> +#include <net/ip.h> #include <net/tcp_memcontrol.h> #include <asm/uaccess.h> @@ -326,7 +327,7 @@ struct mem_cgroup { struct mem_cgroup_stat_cpu nocpu_base; spinlock_t pcp_counter_lock; -#ifdef CONFIG_INET +#if defined(CONFIG_MEMCG_KMEM) && defined(CONFIG_INET) struct tcp_memcontrol tcp_mem; #endif }; @@ -412,9 +413,7 @@ struct mem_cgroup *mem_cgroup_from_css(struct cgroup_subsys_state *s) } /* Writing them here to avoid exposing memcg's inner layout */ -#ifdef CONFIG_MEMCG_KMEM -#include <net/sock.h> -#include <net/ip.h> +#if defined(CONFIG_INET) && defined(CONFIG_MEMCG_KMEM) static bool mem_cgroup_is_root(struct mem_cgroup *memcg); void sock_update_memcg(struct sock *sk) @@ -461,7 +460,6 @@ void sock_release_memcg(struct sock *sk) } } -#ifdef CONFIG_INET struct cg_proto *tcp_proto_cgroup(struct mem_cgroup *memcg) { if (!memcg || mem_cgroup_is_root(memcg)) @@ -470,10 +468,7 @@ struct cg_proto *tcp_proto_cgroup(struct mem_cgroup *memcg) return &memcg->tcp_mem.cg_proto; } EXPORT_SYMBOL(tcp_proto_cgroup); -#endif /* CONFIG_INET */ -#endif /* CONFIG_MEMCG_KMEM */ -#if defined(CONFIG_INET) && defined(CONFIG_MEMCG_KMEM) static void disarm_sock_keys(struct mem_cgroup *memcg) { if (!memcg_proto_activated(&memcg->tcp_mem.cg_proto)) |