slub: make ->size unsigned int

Linux doesn't support negative length objects (including meta data).

Link: http://lkml.kernel.org/r/20180305200730.15812-18-adobriyan@gmail.com
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index 7d74f121ef4e..bc02fd3a8ccf 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -84,7 +84,7 @@ struct kmem_cache {
         /* Used for retriving partial slabs etc */
         slab_flags_t flags;
         unsigned long min_partial;
-        int size;               /* The size of an object including meta data */
+        unsigned int size;      /* The size of an object including meta data */
         unsigned int object_size;/* The size of an object without meta data */
         unsigned int offset;    /* Free pointer offset. */
 #ifdef CONFIG_SLUB_CPU_PARTIAL