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-rw-r--r--include/linux/memcontrol.h15
-rw-r--r--include/linux/slab.h5
2 files changed, 12 insertions, 8 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index c9d9a8e7b45f..5c97265c1c6e 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -766,15 +766,13 @@ static inline int memcg_cache_id(struct mem_cgroup *memcg)
return memcg ? memcg->kmemcg_id : -1;
}
-struct kmem_cache *__memcg_kmem_get_cache(struct kmem_cache *cachep);
+struct kmem_cache *__memcg_kmem_get_cache(struct kmem_cache *cachep, gfp_t gfp);
void __memcg_kmem_put_cache(struct kmem_cache *cachep);
-static inline bool __memcg_kmem_bypass(gfp_t gfp)
+static inline bool __memcg_kmem_bypass(void)
{
if (!memcg_kmem_enabled())
return true;
- if (!(gfp & __GFP_ACCOUNT))
- return true;
if (in_interrupt() || (!current->mm) || (current->flags & PF_KTHREAD))
return true;
return false;
@@ -791,7 +789,9 @@ static inline bool __memcg_kmem_bypass(gfp_t gfp)
static __always_inline int memcg_kmem_charge(struct page *page,
gfp_t gfp, int order)
{
- if (__memcg_kmem_bypass(gfp))
+ if (__memcg_kmem_bypass())
+ return 0;
+ if (!(gfp & __GFP_ACCOUNT))
return 0;
return __memcg_kmem_charge(page, gfp, order);
}
@@ -810,16 +810,15 @@ static __always_inline void memcg_kmem_uncharge(struct page *page, int order)
/**
* memcg_kmem_get_cache: selects the correct per-memcg cache for allocation
* @cachep: the original global kmem cache
- * @gfp: allocation flags.
*
* All memory allocated from a per-memcg cache is charged to the owner memcg.
*/
static __always_inline struct kmem_cache *
memcg_kmem_get_cache(struct kmem_cache *cachep, gfp_t gfp)
{
- if (__memcg_kmem_bypass(gfp))
+ if (__memcg_kmem_bypass())
return cachep;
- return __memcg_kmem_get_cache(cachep);
+ return __memcg_kmem_get_cache(cachep, gfp);
}
static __always_inline void memcg_kmem_put_cache(struct kmem_cache *cachep)
diff --git a/include/linux/slab.h b/include/linux/slab.h
index 2037a861e367..3ffee7422012 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -86,6 +86,11 @@
#else
# define SLAB_FAILSLAB 0x00000000UL
#endif
+#ifdef CONFIG_MEMCG_KMEM
+# define SLAB_ACCOUNT 0x04000000UL /* Account to memcg */
+#else
+# define SLAB_ACCOUNT 0x00000000UL
+#endif
/* The following flags affect the page allocator grouping pages by mobility */
#define SLAB_RECLAIM_ACCOUNT 0x00020000UL /* Objects are reclaimable */