The quilt patch titled
Subject: kasan: clear metadata functions for tag-based modes
has been removed from the -mm tree. Its filename was
kasan-clear-metadata-functions-for-tag-based-modes.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Subject: kasan: clear metadata functions for tag-based modes
Date: Mon, 5 Sep 2022 23:05:24 +0200
Remove implementations of the metadata-related functions for the tag-based
modes.
The following patches in the series will provide alternative
implementations.
As of this patch, the tag-based modes no longer collect alloc and free
stack traces. This functionality will be restored later in the series.
Link: https://lkml.kernel.org/r/470fbe5d15e8015092e76e395de354be18ccceab.1662411799.git.andreyknvl@xxxxxxxxxx
Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Reviewed-by: Marco Elver <elver@xxxxxxxxxx>
Cc: Alexander Potapenko <glider@xxxxxxxxxx>
Cc: Andrey Ryabinin <ryabinin.a.a@xxxxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: Evgenii Stepanov <eugenis@xxxxxxxxxx>
Cc: Peter Collingbourne <pcc@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/kasan/tags.c | 33 ++-------------------------------
1 file changed, 2 insertions(+), 31 deletions(-)
--- a/mm/kasan/tags.c~kasan-clear-metadata-functions-for-tag-based-modes
+++ a/mm/kasan/tags.c
@@ -19,54 +19,25 @@
void kasan_init_object_meta(struct kmem_cache *cache, const void *object)
{
- struct kasan_alloc_meta *alloc_meta;
-
- alloc_meta = kasan_get_alloc_meta(cache, object);
- if (alloc_meta)
- __memset(alloc_meta, 0, sizeof(*alloc_meta));
}
void kasan_save_alloc_info(struct kmem_cache *cache, void *object, gfp_t flags)
{
- struct kasan_alloc_meta *alloc_meta;
-
- alloc_meta = kasan_get_alloc_meta(cache, object);
- if (alloc_meta)
- kasan_set_track(&alloc_meta->alloc_track, flags);
}
void kasan_save_free_info(struct kmem_cache *cache,
void *object, u8 tag)
{
- struct kasan_alloc_meta *alloc_meta;
-
- alloc_meta = kasan_get_alloc_meta(cache, object);
- if (!alloc_meta)
- return;
-
- kasan_set_track(&alloc_meta->free_track, GFP_NOWAIT);
}
struct kasan_track *kasan_get_alloc_track(struct kmem_cache *cache,
void *object)
{
- struct kasan_alloc_meta *alloc_meta;
-
- alloc_meta = kasan_get_alloc_meta(cache, object);
- if (!alloc_meta)
- return NULL;
-
- return &alloc_meta->alloc_track;
+ return NULL;
}
struct kasan_track *kasan_get_free_track(struct kmem_cache *cache,
void *object, u8 tag)
{
- struct kasan_alloc_meta *alloc_meta;
-
- alloc_meta = kasan_get_alloc_meta(cache, object);
- if (!alloc_meta)
- return NULL;
-
- return &alloc_meta->free_track;
+ return NULL;
}
_
Patches currently in -mm which might be from andreyknvl@xxxxxxxxxx are
kasan-fix-array-bounds-warnings-in-tests.patch
