From 10d1f8cb3965a6f633bf23eb984cda552927e3a5 Mon Sep 17 00:00:00 2001
From: Marco Elver <elver@google.com>
Date: Thu, 11 Jul 2019 20:54:14 -0700
Subject: mm/slab: refactor common ksize KASAN logic into slab_common.c

This refactors common code of ksize() between the various allocators into
slab_common.c: __ksize() is the allocator-specific implementation without
instrumentation, whereas ksize() includes the required KASAN logic.

Link: http://lkml.kernel.org/r/20190626142014.141844-5-elver@google.com
Signed-off-by: Marco Elver <elver@google.com>
Acked-by: Christoph Lameter <cl@linux.com>
Reviewed-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/slab.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'include/linux/slab.h')

diff --git a/include/linux/slab.h b/include/linux/slab.h
index 9449b19c5f10..98c3d12b7275 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -184,6 +184,7 @@ void * __must_check __krealloc(const void *, size_t, gfp_t);
 void * __must_check krealloc(const void *, size_t, gfp_t);
 void kfree(const void *);
 void kzfree(const void *);
+size_t __ksize(const void *);
 size_t ksize(const void *);
 
 #ifdef CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR
-- 
cgit v1.2.3