diff options
Diffstat (limited to 'mm/kfence')
| -rw-r--r-- | mm/kfence/core.c | 17 | ||||
| -rw-r--r-- | mm/kfence/kfence.h | 2 | ||||
| -rw-r--r-- | mm/kfence/kfence_test.c | 1 |
3 files changed, 14 insertions, 6 deletions
diff --git a/mm/kfence/core.c b/mm/kfence/core.c index 964b8482275b..c5cb54fc696d 100644 --- a/mm/kfence/core.c +++ b/mm/kfence/core.c @@ -305,8 +305,14 @@ metadata_update_state(struct kfence_metadata *meta, enum kfence_object_state nex WRITE_ONCE(meta->state, next); } +#ifdef CONFIG_KMSAN +#define check_canary_attributes noinline __no_kmsan_checks +#else +#define check_canary_attributes inline +#endif + /* Check canary byte at @addr. */ -static inline bool check_canary_byte(u8 *addr) +static check_canary_attributes bool check_canary_byte(u8 *addr) { struct kfence_metadata *meta; unsigned long flags; @@ -341,7 +347,8 @@ static inline void set_canary(const struct kfence_metadata *meta) *((u64 *)addr) = KFENCE_CANARY_PATTERN_U64; } -static inline void check_canary(const struct kfence_metadata *meta) +static check_canary_attributes void +check_canary(const struct kfence_metadata *meta) { const unsigned long pageaddr = ALIGN_DOWN(meta->addr, PAGE_SIZE); unsigned long addr = pageaddr; @@ -595,7 +602,7 @@ static unsigned long kfence_init_pool(void) continue; __folio_set_slab(slab_folio(slab)); -#ifdef CONFIG_MEMCG_KMEM +#ifdef CONFIG_MEMCG slab->obj_exts = (unsigned long)&kfence_metadata_init[i / 2 - 1].obj_exts | MEMCG_DATA_OBJEXTS; #endif @@ -645,7 +652,7 @@ reset_slab: if (!i || (i % 2)) continue; -#ifdef CONFIG_MEMCG_KMEM +#ifdef CONFIG_MEMCG slab->obj_exts = 0; #endif __folio_clear_slab(slab_folio(slab)); @@ -1139,7 +1146,7 @@ void __kfence_free(void *addr) { struct kfence_metadata *meta = addr_to_metadata((unsigned long)addr); -#ifdef CONFIG_MEMCG_KMEM +#ifdef CONFIG_MEMCG KFENCE_WARN_ON(meta->obj_exts.objcg); #endif /* diff --git a/mm/kfence/kfence.h b/mm/kfence/kfence.h index 084f5f36e8e7..db87a05047bd 100644 --- a/mm/kfence/kfence.h +++ b/mm/kfence/kfence.h @@ -97,7 +97,7 @@ struct kfence_metadata { struct kfence_track free_track; /* For updating alloc_covered on frees. */ u32 alloc_stack_hash; -#ifdef CONFIG_MEMCG_KMEM +#ifdef CONFIG_MEMCG struct slabobj_ext obj_exts; #endif }; diff --git a/mm/kfence/kfence_test.c b/mm/kfence/kfence_test.c index 95b2b84c296d..00fd17285285 100644 --- a/mm/kfence/kfence_test.c +++ b/mm/kfence/kfence_test.c @@ -852,3 +852,4 @@ kunit_test_suites(&kfence_test_suite); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Alexander Potapenko <glider@google.com>, Marco Elver <elver@google.com>"); +MODULE_DESCRIPTION("kfence unit test suite"); |