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slub: make ->reserved unsigned int 

->reserved is either 0 or sizeof(struct rcu_head), can't be negative.

Link: http://lkml.kernel.org/r/20180305200730.15812-12-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>
hifive-unleashed-5.1
Alexey Dobriyan 2018-04-05 16:20:58 -07:00 committed by Linus Torvalds
parent 2ca6d39b31
commit d66e52d1e8
2 changed files with 2 additions and 2 deletions
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2
include/linux/slub_def.h
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@ -100,7 +100,7 @@ struct kmem_cache {
void (*ctor)(void *);
int inuse; /* Offset to metadata */
int align; /* Alignment */
int reserved; /* Reserved bytes at the end of slabs */
unsigned int reserved; /* Reserved bytes at the end of slabs */
unsigned int red_left_pad; /* Left redzone padding size */
const char *name; /* Name (only for display!) */
struct list_head list; /* List of slab caches */

2
mm/slub.c
View File

@ -5094,7 +5094,7 @@ SLAB_ATTR_RO(destroy_by_rcu);
static ssize_t reserved_show(struct kmem_cache *s, char *buf)
{
return sprintf(buf, "%d\n", s->reserved);
return sprintf(buf, "%u\n", s->reserved);
}
SLAB_ATTR_RO(reserved);