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authorJérémy Lefaure <jeremy.lefaure@lse.epita.fr>2017-10-01 22:30:49 +0300
committerMike Snitzer <snitzer@redhat.com>2017-11-10 23:44:52 +0300
commitfbc61291d7da41ec19f339311297f59213165227 (patch)
tree57d695fa21a87bcb9cb41fd80780d1065daa1b28 /drivers/md
parent98d82f48f1983ceef5c8d2f6c87bfee2918790ee (diff)
downloadlinux-fbc61291d7da41ec19f339311297f59213165227.tar.xz
dm space map metadata: use ARRAY_SIZE
Using the ARRAY_SIZE macro improves the readability of the code. Found with Coccinelle with the following semantic patch: @r depends on (org || report)@ type T; T[] E; position p; @@ ( (sizeof(E)@p /sizeof(*E)) | (sizeof(E)@p /sizeof(E[...])) | (sizeof(E)@p /sizeof(T)) ) Signed-off-by: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md')
-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,