diff options
| author | Glauber Costa <glommer@parallels.com> | 2012-12-18 23:22:48 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-19 00:02:14 +0100 |
| commit | d79923fad95b0cdf7770e024677180c734cb7148 (patch) | |
| tree | e7cf6e9fb151d3c0d5c773fa1ba723a71b1e9329 /mm/slub.c | |
| parent | sl[au]b: always get the cache from its page in kmem_cache_free() (diff) | |
| download | linux-d79923fad95b0cdf7770e024677180c734cb7148.tar.xz linux-d79923fad95b0cdf7770e024677180c734cb7148.zip | |
sl[au]b: allocate objects from memcg cache
We are able to match a cache allocation to a particular memcg. If the
task doesn't change groups during the allocation itself - a rare event,
this will give us a good picture about who is the first group to touch a
cache page.
This patch uses the now available infrastructure by calling
memcg_kmem_get_cache() before all the cache allocations.
Signed-off-by: Glauber Costa <glommer@parallels.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Frederic Weisbecker <fweisbec@redhat.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: JoonSoo Kim <js1304@gmail.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Rik van Riel <riel@redhat.com>
Cc: Suleiman Souhlal <suleiman@google.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/slub.c')
| -rw-r--r-- | mm/slub.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/mm/slub.c b/mm/slub.c index 6d5f2305d7a4..ef39e872b8eb 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1405,7 +1405,7 @@ static void __free_slab(struct kmem_cache *s, struct page *page) reset_page_mapcount(page); if (current->reclaim_state) current->reclaim_state->reclaimed_slab += pages; - __free_pages(page, order); + __free_memcg_kmem_pages(page, order); } #define need_reserve_slab_rcu \ @@ -2323,6 +2323,7 @@ static __always_inline void *slab_alloc_node(struct kmem_cache *s, if (slab_pre_alloc_hook(s, gfpflags)) return NULL; + s = memcg_kmem_get_cache(s, gfpflags); redo: /* @@ -3284,7 +3285,7 @@ static void *kmalloc_large_node(size_t size, gfp_t flags, int node) struct page *page; void *ptr = NULL; - flags |= __GFP_COMP | __GFP_NOTRACK; + flags |= __GFP_COMP | __GFP_NOTRACK | __GFP_KMEMCG; page = alloc_pages_node(node, flags, get_order(size)); if (page) ptr = page_address(page); @@ -3390,7 +3391,7 @@ void kfree(const void *x) if (unlikely(!PageSlab(page))) { BUG_ON(!PageCompound(page)); kmemleak_free(x); - __free_pages(page, compound_order(page)); + __free_memcg_kmem_pages(page, compound_order(page)); return; } slab_free(page->slab_cache, page, object, _RET_IP_); |