slub: make ->max_attr_size unsigned int

->max_attr_size is maximum length of every SLAB memcg attribute
ever written. VFS limits those to INT_MAX.

Link: http://lkml.kernel.org/r/20180305200730.15812-10-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>

diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index f6548083fe0fbd2e1b8bbc61c6c2aab0a53ed42e..9bb761324a9c71b409081291517ec3de87e59df5 100644 (file)
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -110,7 +110,8 @@ struct kmem_cache {
 #endif
 #ifdef CONFIG_MEMCG
        struct memcg_cache_params memcg_params;
-       int max_attr_size; /* for propagation, maximum size of a stored attr */
+       /* for propagation, maximum size of a stored attr */
+       unsigned int max_attr_size;
 #ifdef CONFIG_SYSFS
        struct kset *memcg_kset;
 #endif