->reserved is either 0 or sizeof(struct rcu_head), can't be negative.
Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
---
include/linux/slub_def.h | 2 +-
mm/slub.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index a7019a4c713d..09ca236ce102 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -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 */
diff --git a/mm/slub.c b/mm/slub.c
index 45d8f0cbfb28..2ca7463c72c2 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -5069,7 +5069,7 @@ 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);
--
2.13.6
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