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authorAlexander Potapenko <glider@google.com>2016-07-29 01:49:07 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-07-29 02:07:41 +0300
commit80a9201a5965f4715d5c09790862e0df84ce0614 (patch)
treee05d44a7f9ef0d81328dc4bd70f23656fc279bc9 /mm/slab.h
parentc146a2b98eb5898eb0fab15a332257a4102ecae9 (diff)
downloadlinux-80a9201a5965f4715d5c09790862e0df84ce0614.tar.xz
mm, kasan: switch SLUB to stackdepot, enable memory quarantine for SLUB
For KASAN builds: - switch SLUB allocator to using stackdepot instead of storing the allocation/deallocation stacks in the objects; - change the freelist hook so that parts of the freelist can be put into the quarantine. [aryabinin@virtuozzo.com: fixes] Link: http://lkml.kernel.org/r/1468601423-28676-1-git-send-email-aryabinin@virtuozzo.com Link: http://lkml.kernel.org/r/1468347165-41906-3-git-send-email-glider@google.com Signed-off-by: Alexander Potapenko <glider@google.com> Cc: Andrey Konovalov <adech.fo@gmail.com> Cc: Christoph Lameter <cl@linux.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Steven Rostedt (Red Hat) <rostedt@goodmis.org> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Kostya Serebryany <kcc@google.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Kuthonuzo Luruo <kuthonuzo.luruo@hpe.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/slab.h')
-rw-r--r--mm/slab.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/slab.h b/mm/slab.h
index f33980ab0406..9653f2e2591a 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -369,6 +369,8 @@ static inline size_t slab_ksize(const struct kmem_cache *s)
if (s->flags & (SLAB_RED_ZONE | SLAB_POISON))
return s->object_size;
# endif
+ if (s->flags & SLAB_KASAN)
+ return s->object_size;
/*
* If we have the need to store the freelist pointer
* back there or track user information then we can