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[mm,v3,03/19] kasan: introduce set_alloc_info

Message ID 31f5366d3245f5405185a0b4057b305613ce60ee.1605305978.git.andreyknvl@google.com (mailing list archive)
State New, archived
Headers show
Series kasan: boot parameters for hardware tag-based mode | expand

Commit Message

Andrey Konovalov Nov. 13, 2020, 10:19 p.m. UTC
Add set_alloc_info() helper and move kasan_set_track() into it. This will
simplify the code for one of the upcoming changes.

No functional changes.

Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Link: https://linux-review.googlesource.com/id/I0316193cbb4ecc9b87b7c2eee0dd79f8ec908c1a
---
 mm/kasan/common.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
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Patch

diff --git a/mm/kasan/common.c b/mm/kasan/common.c
index 8197399b0a1f..0a420f1dbc54 100644
--- a/mm/kasan/common.c
+++ b/mm/kasan/common.c
@@ -327,6 +327,11 @@  bool kasan_slab_free(struct kmem_cache *cache, void *object, unsigned long ip)
 	return __kasan_slab_free(cache, object, ip, true);
 }
 
+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);
+}
+
 static void *__kasan_kmalloc(struct kmem_cache *cache, const void *object,
 				size_t size, gfp_t flags, bool keep_tag)
 {
@@ -357,7 +362,7 @@  static void *__kasan_kmalloc(struct kmem_cache *cache, const void *object,
 		     KASAN_KMALLOC_REDZONE);
 
 	if (cache->flags & SLAB_KASAN)
-		kasan_set_track(&kasan_get_alloc_meta(cache, object)->alloc_track, flags);
+		set_alloc_info(cache, (void *)object, flags);
 
 	return set_tag(object, tag);
 }