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mm: memcontrol: move kmem accounting code to CONFIG_MEMCG

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The cgroup2 memory controller will account important in-kernel memory
consumers per default.  Move all necessary components to CONFIG_MEMCG.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Vladimir Davydov <vdavydov@virtuozzo.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Johannes Weiner 2016-01-20 15:02:32 -08:00 • committed by Linus Torvalds
parent 3893e302f6
commit 127424c86b
11 changed files with 73 additions and 58 deletions
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10
mm/slub.c
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@ -5207,7 +5207,7 @@ static ssize_t slab_attr_store(struct kobject *kobj,
return -EIO;
err = attribute->store(s, buf, len);
#ifdef CONFIG_MEMCG_KMEM
#ifdef CONFIG_MEMCG
if (slab_state >= FULL && err >= 0 && is_root_cache(s)) {
struct kmem_cache *c;
@ -5242,7 +5242,7 @@ static ssize_t slab_attr_store(struct kobject *kobj,
static void memcg_propagate_slab_attrs(struct kmem_cache *s)
{
#ifdef CONFIG_MEMCG_KMEM
#ifdef CONFIG_MEMCG
int i;
char *buffer = NULL;
struct kmem_cache *root_cache;
@ -5328,7 +5328,7 @@ static struct kset *slab_kset;
static inline struct kset *cache_kset(struct kmem_cache *s)
{
#ifdef CONFIG_MEMCG_KMEM
#ifdef CONFIG_MEMCG
if (!is_root_cache(s))
return s->memcg_params.root_cache->memcg_kset;
#endif
@ -5405,7 +5405,7 @@ static int sysfs_slab_add(struct kmem_cache *s)
if (err)
goto out_del_kobj;
#ifdef CONFIG_MEMCG_KMEM
#ifdef CONFIG_MEMCG
if (is_root_cache(s)) {
s->memcg_kset = kset_create_and_add("cgroup", NULL, &s->kobj);
if (!s->memcg_kset) {
@ -5438,7 +5438,7 @@ void sysfs_slab_remove(struct kmem_cache *s)
*/
return;
#ifdef CONFIG_MEMCG_KMEM
#ifdef CONFIG_MEMCG
kset_unregister(s->memcg_kset);
#endif
kobject_uevent(&s->kobj, KOBJ_REMOVE);