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Diffstat (limited to 'mm')
-rw-r--r--mm/slub.c40
1 files changed, 22 insertions, 18 deletions
diff --git a/mm/slub.c b/mm/slub.c
index c17c5202864d..ce1797623391 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1292,14 +1292,21 @@ static inline struct kmem_cache *slab_pre_alloc_hook(struct kmem_cache *s,
return memcg_kmem_get_cache(s, flags);
}
-static inline void slab_post_alloc_hook(struct kmem_cache *s,
- gfp_t flags, void *object)
+static inline void slab_post_alloc_hook(struct kmem_cache *s, gfp_t flags,
+ size_t size, void **p)
{
+ size_t i;
+
flags &= gfp_allowed_mask;
- kmemcheck_slab_alloc(s, flags, object, slab_ksize(s));
- kmemleak_alloc_recursive(object, s->object_size, 1, s->flags, flags);
+ for (i = 0; i < size; i++) {
+ void *object = p[i];
+
+ kmemcheck_slab_alloc(s, flags, object, slab_ksize(s));
+ kmemleak_alloc_recursive(object, s->object_size, 1,
+ s->flags, flags);
+ kasan_slab_alloc(s, object);
+ }
memcg_kmem_put_cache(s);
- kasan_slab_alloc(s, object);
}
static inline void slab_free_hook(struct kmem_cache *s, void *x)
@@ -2475,7 +2482,7 @@ static void *__slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node,
static __always_inline void *slab_alloc_node(struct kmem_cache *s,
gfp_t gfpflags, int node, unsigned long addr)
{
- void **object;
+ void *object;
struct kmem_cache_cpu *c;
struct page *page;
unsigned long tid;
@@ -2554,7 +2561,7 @@ redo:
if (unlikely(gfpflags & __GFP_ZERO) && object)
memset(object, 0, s->object_size);
- slab_post_alloc_hook(s, gfpflags, object);
+ slab_post_alloc_hook(s, gfpflags, 1, &object);
return object;
}
@@ -2904,6 +2911,10 @@ bool kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size,
struct kmem_cache_cpu *c;
int i;
+ /* memcg and kmem_cache debug support */
+ s = slab_pre_alloc_hook(s, flags);
+ if (unlikely(!s))
+ return false;
/*
* Drain objects in the per cpu slab, while disabling local
* IRQs, which protects against PREEMPT and interrupts
@@ -2928,17 +2939,8 @@ bool kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size,
c = this_cpu_ptr(s->cpu_slab);
continue; /* goto for-loop */
}
-
- /* kmem_cache debug support */
- s = slab_pre_alloc_hook(s, flags);
- if (unlikely(!s))
- goto error;
-
c->freelist = get_freepointer(s, object);
p[i] = object;
-
- /* kmem_cache debug support */
- slab_post_alloc_hook(s, flags, object);
}
c->tid = next_tid(c->tid);
local_irq_enable();
@@ -2951,11 +2953,13 @@ bool kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size,
memset(p[j], 0, s->object_size);
}
+ /* memcg and kmem_cache debug support */
+ slab_post_alloc_hook(s, flags, size, p);
return true;
-
error:
- __kmem_cache_free_bulk(s, i, p);
local_irq_enable();
+ slab_post_alloc_hook(s, flags, i, p);
+ __kmem_cache_free_bulk(s, i, p);
return false;
}
EXPORT_SYMBOL(kmem_cache_alloc_bulk);