slab: alien caches must not be initialized if the allocation of the alien cache failed

[GitHub/LineageOS/android_kernel_motorola_exynos9610.git] / mm / slab.h

diff --git a/mm/slab.h b/mm/slab.h
index 073362816acc8dd4914e610e6a56e2fdb3295f2a..485d9fbb8802f85e8df71d3004e640c3b79b9d5f 100644 (file)
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef MM_SLAB_H
 #define MM_SLAB_H
 /*
@@ -39,7 +40,6 @@ struct kmem_cache {
 
 #include <linux/memcontrol.h>
 #include <linux/fault-inject.h>
-#include <linux/kmemcheck.h>
 #include <linux/kasan.h>
 #include <linux/kmemleak.h>
 #include <linux/random.h>
@@ -141,10 +141,10 @@ static inline unsigned long kmem_cache_flags(unsigned long object_size,
 #if defined(CONFIG_SLAB)
 #define SLAB_CACHE_FLAGS (SLAB_MEM_SPREAD | SLAB_NOLEAKTRACE | \
                          SLAB_RECLAIM_ACCOUNT | SLAB_TEMPORARY | \
-                         SLAB_NOTRACK | SLAB_ACCOUNT)
+                         SLAB_ACCOUNT)
 #elif defined(CONFIG_SLUB)
 #define SLAB_CACHE_FLAGS (SLAB_NOLEAKTRACE | SLAB_RECLAIM_ACCOUNT | \
-                         SLAB_TEMPORARY | SLAB_NOTRACK | SLAB_ACCOUNT)
+                         SLAB_TEMPORARY | SLAB_ACCOUNT)
 #else
 #define SLAB_CACHE_FLAGS (0)
 #endif
@@ -163,7 +163,6 @@ static inline unsigned long kmem_cache_flags(unsigned long object_size,
                              SLAB_NOLEAKTRACE | \
                              SLAB_RECLAIM_ACCOUNT | \
                              SLAB_TEMPORARY | \
-                             SLAB_NOTRACK | \
                              SLAB_ACCOUNT)
 
 int __kmem_cache_shutdown(struct kmem_cache *);
@@ -258,7 +257,7 @@ cache_from_memcg_idx(struct kmem_cache *s, int idx)
         * memcg_caches issues a write barrier to match this (see
         * memcg_create_kmem_cache()).
         */
-       cachep = lockless_dereference(arr->entries[idx]);
+       cachep = READ_ONCE(arr->entries[idx]);
        rcu_read_unlock();
 
        return cachep;
@@ -438,7 +437,6 @@ static inline void slab_post_alloc_hook(struct kmem_cache *s, gfp_t 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, flags);