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-rw-r--r--drivers/md/persistent-data/dm-space-map-metadata.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/md/persistent-data/dm-space-map-metadata.c b/drivers/md/persistent-data/dm-space-map-metadata.c
index 4aed69d9dd17..aec449243966 100644
--- a/drivers/md/persistent-data/dm-space-map-metadata.c
+++ b/drivers/md/persistent-data/dm-space-map-metadata.c
@@ -11,6 +11,7 @@
#include <linux/list.h>
#include <linux/slab.h>
#include <linux/device-mapper.h>
+#include <linux/kernel.h>
#define DM_MSG_PREFIX "space map metadata"
@@ -111,7 +112,7 @@ static bool brb_empty(struct bop_ring_buffer *brb)
static unsigned brb_next(struct bop_ring_buffer *brb, unsigned old)
{
unsigned r = old + 1;
- return (r >= (sizeof(brb->bops) / sizeof(*brb->bops))) ? 0 : r;
+ return r >= ARRAY_SIZE(brb->bops) ? 0 : r;
}
static int brb_push(struct bop_ring_buffer *brb,