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Commit fbc61291 authored by Jérémy Lefaure's avatar Jérémy Lefaure Committed by Mike Snitzer
Browse files

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: default avatarJérémy Lefaure <jeremy.lefaure@lse.epita.fr>
Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
parent 98d82f48

drivers/md/persistent-data/dm-space-map-metadata.c

+2 −1
Original line number Diff line number Diff line
@@ -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,