From: Andrey Konovalov <andreyknvl@google.com>
To: Dmitry Vyukov <dvyukov@google.com>,
Alexander Potapenko <glider@google.com>,
Marco Elver <elver@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Evgenii Stepanov <eugenis@google.com>,
Andrey Ryabinin <aryabinin@virtuozzo.com>,
Branislav Rankov <Branislav.Rankov@arm.com>,
Kevin Brodsky <kevin.brodsky@arm.com>,
Andrew Morton <akpm@linux-foundation.org>,
kasan-dev@googlegroups.com,
linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org,
Andrey Konovalov <andreyknvl@google.com>
Subject: [PATCH v2 14/20] kasan, mm: rename kasan_poison_kfree
Date: Tue, 10 Nov 2020 23:20:18 +0100 [thread overview]
Message-ID: <ee33aa1d9c57c3f2b2c700e8f2c6c24db8703612.1605046662.git.andreyknvl@google.com> (raw)
In-Reply-To: <cover.1605046662.git.andreyknvl@google.com>
Rename kasan_poison_kfree() to kasan_slab_free_mempool() as it better
reflects what this annotation does.
No functional changes.
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Link: https://linux-review.googlesource.com/id/I5026f87364e556b506ef1baee725144bb04b8810
---
include/linux/kasan.h | 16 ++++++++--------
mm/kasan/common.c | 16 ++++++++--------
mm/mempool.c | 2 +-
3 files changed, 17 insertions(+), 17 deletions(-)
diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 779f8e703982..534ab3e2935a 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -177,6 +177,13 @@ static inline bool kasan_slab_free(struct kmem_cache *s, void *object, unsigned
return false;
}
+void __kasan_slab_free_mempool(void *ptr, unsigned long ip);
+static inline void kasan_slab_free_mempool(void *ptr, unsigned long ip)
+{
+ if (kasan_enabled())
+ __kasan_slab_free_mempool(ptr, ip);
+}
+
void * __must_check __kasan_slab_alloc(struct kmem_cache *s,
void *object, gfp_t flags);
static inline void * __must_check kasan_slab_alloc(struct kmem_cache *s,
@@ -217,13 +224,6 @@ static inline void * __must_check kasan_krealloc(const void *object,
return (void *)object;
}
-void __kasan_poison_kfree(void *ptr, unsigned long ip);
-static inline void kasan_poison_kfree(void *ptr, unsigned long ip)
-{
- if (kasan_enabled())
- __kasan_poison_kfree(ptr, ip);
-}
-
void __kasan_kfree_large(void *ptr, unsigned long ip);
static inline void kasan_kfree_large(void *ptr, unsigned long ip)
{
@@ -263,6 +263,7 @@ static inline bool kasan_slab_free(struct kmem_cache *s, void *object,
{
return false;
}
+static inline void kasan_slab_free_mempool(void *ptr, unsigned long ip) {}
static inline void *kasan_slab_alloc(struct kmem_cache *s, void *object,
gfp_t flags)
{
@@ -282,7 +283,6 @@ static inline void *kasan_krealloc(const void *object, size_t new_size,
{
return (void *)object;
}
-static inline void kasan_poison_kfree(void *ptr, unsigned long ip) {}
static inline void kasan_kfree_large(void *ptr, unsigned long ip) {}
#endif /* CONFIG_KASAN */
diff --git a/mm/kasan/common.c b/mm/kasan/common.c
index 819403548f2e..60793f8695a8 100644
--- a/mm/kasan/common.c
+++ b/mm/kasan/common.c
@@ -336,6 +336,14 @@ bool __kasan_slab_free(struct kmem_cache *cache, void *object, unsigned long ip)
return ____kasan_slab_free(cache, object, ip, true);
}
+void __kasan_slab_free_mempool(void *ptr, unsigned long ip)
+{
+ struct page *page;
+
+ page = virt_to_head_page(ptr);
+ ____kasan_slab_free(page->slab_cache, ptr, ip, false);
+}
+
static void set_alloc_info(struct kmem_cache *cache, void *object, gfp_t flags)
{
kasan_set_track(&kasan_get_alloc_meta(cache, object)->alloc_track, flags);
@@ -427,14 +435,6 @@ void * __must_check __kasan_krealloc(const void *object, size_t size, gfp_t flag
flags, true);
}
-void __kasan_poison_kfree(void *ptr, unsigned long ip)
-{
- struct page *page;
-
- page = virt_to_head_page(ptr);
- ____kasan_slab_free(page->slab_cache, ptr, ip, false);
-}
-
void __kasan_kfree_large(void *ptr, unsigned long ip)
{
if (ptr != page_address(virt_to_head_page(ptr)))
diff --git a/mm/mempool.c b/mm/mempool.c
index f473cdddaff0..b1f39fa75ade 100644
--- a/mm/mempool.c
+++ b/mm/mempool.c
@@ -104,7 +104,7 @@ static inline void poison_element(mempool_t *pool, void *element)
static __always_inline void kasan_poison_element(mempool_t *pool, void *element)
{
if (pool->alloc == mempool_alloc_slab || pool->alloc == mempool_kmalloc)
- kasan_poison_kfree(element, _RET_IP_);
+ kasan_slab_free_mempool(element, _RET_IP_);
else if (pool->alloc == mempool_alloc_pages)
kasan_free_pages(element, (unsigned long)pool->pool_data);
}
--
2.29.2.222.g5d2a92d10f8-goog
next prev parent reply other threads:[~2020-11-10 22:21 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-10 22:20 [PATCH v2 00/20] kasan: boot parameters for hardware tag-based mode Andrey Konovalov
2020-11-10 22:20 ` [PATCH v2 01/20] kasan: simplify quarantine_put call site Andrey Konovalov
2020-11-11 16:08 ` Marco Elver
2020-11-10 22:20 ` [PATCH v2 02/20] kasan: rename get_alloc/free_info Andrey Konovalov
2020-11-11 16:09 ` Marco Elver
2020-11-10 22:20 ` [PATCH v2 03/20] kasan: introduce set_alloc_info Andrey Konovalov
2020-11-11 16:10 ` Marco Elver
2020-11-10 22:20 ` [PATCH v2 04/20] kasan, arm64: unpoison stack only with CONFIG_KASAN_STACK Andrey Konovalov
2020-11-11 16:13 ` Marco Elver
2020-11-12 9:51 ` Catalin Marinas
2020-11-12 19:38 ` Andrey Konovalov
2020-11-10 22:20 ` [PATCH v2 05/20] kasan: allow VMAP_STACK for HW_TAGS mode Andrey Konovalov
2020-11-11 16:20 ` Marco Elver
2020-11-12 0:24 ` Andrey Konovalov
2020-11-12 10:31 ` Catalin Marinas
2020-11-10 22:20 ` [PATCH v2 06/20] kasan: remove __kasan_unpoison_stack Andrey Konovalov
2020-11-11 16:42 ` Marco Elver
2020-11-10 22:20 ` [PATCH v2 07/20] kasan: inline kasan_reset_tag for tag-based modes Andrey Konovalov
2020-11-11 16:54 ` Marco Elver
2020-11-10 22:20 ` [PATCH v2 08/20] kasan: inline random_tag for HW_TAGS Andrey Konovalov
2020-11-11 17:02 ` Marco Elver
2020-11-12 0:21 ` Andrey Konovalov
2020-11-10 22:20 ` [PATCH v2 09/20] kasan: inline kasan_poison_memory and check_invalid_free Andrey Konovalov
2020-11-11 17:50 ` Marco Elver
2020-11-10 22:20 ` [PATCH v2 10/20] kasan: inline and rename kasan_unpoison_memory Andrey Konovalov
2020-11-11 17:49 ` Marco Elver
2020-11-12 19:45 ` Andrey Konovalov
2020-11-12 19:52 ` Marco Elver
2020-11-12 20:54 ` Andrey Konovalov
2020-11-12 22:20 ` Marco Elver
2020-11-10 22:20 ` [PATCH v2 11/20] kasan: add and integrate kasan boot parameters Andrey Konovalov
2020-11-11 18:29 ` Marco Elver
2020-11-12 19:51 ` Andrey Konovalov
2020-11-12 11:35 ` Catalin Marinas
2020-11-12 11:53 ` Marco Elver
2020-11-12 12:54 ` Catalin Marinas
2020-11-12 19:52 ` Andrey Konovalov
2020-11-13 17:52 ` Marco Elver
2020-11-13 17:55 ` Marco Elver
2020-11-10 22:20 ` [PATCH v2 12/20] kasan, mm: check kasan_enabled in annotations Andrey Konovalov
2020-11-11 14:48 ` Marco Elver
2020-11-12 0:36 ` Andrey Konovalov
2020-11-10 22:20 ` [PATCH v2 13/20] kasan: simplify kasan_poison_kfree Andrey Konovalov
2020-11-11 18:42 ` Marco Elver
2020-11-10 22:20 ` Andrey Konovalov [this message]
2020-11-11 18:53 ` [PATCH v2 14/20] kasan, mm: rename kasan_poison_kfree Marco Elver
2020-11-12 1:05 ` Andrey Konovalov
2020-11-10 22:20 ` [PATCH v2 15/20] kasan: don't round_up too much Andrey Konovalov
2020-11-11 19:08 ` Marco Elver
2020-11-10 22:20 ` [PATCH v2 16/20] kasan: simplify assign_tag and set_tag calls Andrey Konovalov
2020-11-11 19:17 ` Marco Elver
2020-11-10 22:20 ` [PATCH v2 17/20] kasan: clarify comment in __kasan_kfree_large Andrey Konovalov
2020-11-11 19:18 ` Marco Elver
2020-11-10 22:20 ` [PATCH v2 18/20] kasan: clean up metadata allocation and usage Andrey Konovalov
2020-11-11 23:06 ` Marco Elver
2020-11-12 20:11 ` Andrey Konovalov
2020-11-10 22:20 ` [PATCH v2 19/20] kasan, mm: allow cache merging with no metadata Andrey Konovalov
2020-11-11 15:13 ` Marco Elver
2020-11-12 23:00 ` Andrey Konovalov
2020-11-11 23:27 ` Marco Elver
2020-11-10 22:20 ` [PATCH v2 20/20] kasan: update documentation Andrey Konovalov
2020-11-11 16:03 ` Marco Elver
2020-11-12 0:51 ` Andrey Konovalov
2020-11-10 22:24 ` [PATCH v2 00/20] kasan: boot parameters for hardware tag-based mode Andrey Konovalov
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