[Devel] [PATCH 17/39] mm: slub: share object_err function

[Andrey Ryabinin]

From: Andrey Ryabinin <a.ryabinin at samsung.com>

commit 75c66def8d815201aa0386ecc7c66a5c8dbca1ee upstream.

Remove static and add function declarations to linux/slub_def.h so it
could be used by kernel address sanitizer.

Signed-off-by: Andrey Ryabinin <a.ryabinin at samsung.com>
Cc: Dmitry Vyukov <dvyukov at google.com>
Cc: Konstantin Serebryany <kcc at google.com>
Cc: Dmitry Chernenkov <dmitryc at google.com>
Signed-off-by: Andrey Konovalov <adech.fo at gmail.com>
Cc: Yuri Gribov <tetra2005 at gmail.com>
Cc: Konstantin Khlebnikov <koct9i at gmail.com>
Cc: Sasha Levin <sasha.levin at oracle.com>
Cc: Christoph Lameter <cl at linux.com>
Cc: Joonsoo Kim <iamjoonsoo.kim at lge.com>
Cc: Dave Hansen <dave.hansen at intel.com>
Cc: Andi Kleen <andi at firstfloor.org>
Cc: Ingo Molnar <mingo at elte.hu>
Cc: Thomas Gleixner <tglx at linutronix.de>
Cc: "H. Peter Anvin" <hpa at zytor.com>
Cc: Christoph Lameter <cl at linux.com>
Cc: Pekka Enberg <penberg at kernel.org>
Cc: David Rientjes <rientjes at google.com>
Signed-off-by: Andrew Morton <akpm at linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds at linux-foundation.org>
Signed-off-by: Andrey Ryabinin <aryabinin at odin.com>
---
 include/linux/slub_def.h | 3 +++
 mm/slub.c                | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index bd48c92..89bcb9e 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -139,4 +139,7 @@ static inline void *virt_to_obj(struct kmem_cache *s,
 	return (void *)x - ((x - slab_page) % s->size);
 }
 
+void object_err(struct kmem_cache *s, struct page *page,
+		u8 *object, char *reason);
+
 #endif /* _LINUX_SLUB_DEF_H */
diff --git a/mm/slub.c b/mm/slub.c
index f39e69c..306cfc4 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -625,7 +625,7 @@ static void print_trailer(struct kmem_cache *s, struct page *page, u8 *p)
 	dump_stack();
 }
 
-static void object_err(struct kmem_cache *s, struct page *page,
+void object_err(struct kmem_cache *s, struct page *page,
 			u8 *object, char *reason)
 {
 	slab_bug(s, "%s", reason);
-- 
2.4.6