DECLARE_STATIC_KEY_FALSE(slub_debug_enabled);
#endif
extern void print_tracking(struct kmem_cache *s, void *object);
+long validate_slab_cache(struct kmem_cache *s);
#else
static inline void print_tracking(struct kmem_cache *s, void *object)
{
#ifdef CONFIG_MEMCG_KMEM
int memcg_alloc_page_obj_cgroups(struct page *page, struct kmem_cache *s,
gfp_t gfp, bool new_page);
+void mod_objcg_state(struct obj_cgroup *objcg, struct pglist_data *pgdat,
+ enum node_stat_item idx, int nr);
static inline void memcg_free_page_obj_cgroups(struct page *page)
{
return true;
}
-static inline void mod_objcg_state(struct obj_cgroup *objcg,
- struct pglist_data *pgdat,
- enum node_stat_item idx, int nr)
-{
- struct mem_cgroup *memcg;
- struct lruvec *lruvec;
-
- rcu_read_lock();
- memcg = obj_cgroup_memcg(objcg);
- lruvec = mem_cgroup_lruvec(memcg, pgdat);
- mod_memcg_lruvec_state(lruvec, idx, nr);
- rcu_read_unlock();
-}
-
static inline void memcg_slab_post_alloc_hook(struct kmem_cache *s,
struct obj_cgroup *objcg,
gfp_t flags, size_t size,
if (!memcg_kmem_enabled() || !objcg)
return;
- flags &= ~__GFP_ACCOUNT;
for (i = 0; i < size; i++) {
if (likely(p[i])) {
page = virt_to_head_page(p[i]);
}
static inline void slab_post_alloc_hook(struct kmem_cache *s,
- struct obj_cgroup *objcg,
- gfp_t flags, size_t size, void **p)
+ struct obj_cgroup *objcg, gfp_t flags,
+ size_t size, void **p, bool init)
{
size_t i;
flags &= gfp_allowed_mask;
+
+ /*
+ * As memory initialization might be integrated into KASAN,
+ * kasan_slab_alloc and initialization memset must be
+ * kept together to avoid discrepancies in behavior.
+ *
+ * As p[i] might get tagged, memset and kmemleak hook come after KASAN.
+ */
for (i = 0; i < size; i++) {
- p[i] = kasan_slab_alloc(s, p[i], flags);
- /* As p[i] might get tagged, call kmemleak hook after KASAN. */
+ p[i] = kasan_slab_alloc(s, p[i], flags, init);
+ if (p[i] && init && !kasan_has_integrated_init())
+ memset(p[i], 0, s->object_size);
kmemleak_alloc_recursive(p[i], s->object_size, 1,
s->flags, flags);
}
return false;
}
+#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_SLUB_DEBUG)
+void debugfs_slab_release(struct kmem_cache *);
+#else
+static inline void debugfs_slab_release(struct kmem_cache *s) { }
+#endif
+
+#ifdef CONFIG_PRINTK
#define KS_ADDRS_COUNT 16
struct kmem_obj_info {
void *kp_ptr;
void *kp_stack[KS_ADDRS_COUNT];
};
void kmem_obj_info(struct kmem_obj_info *kpp, void *object, struct page *page);
+#endif
#endif /* MM_SLAB_H */