btrfs: Use explicit round_down call rather than open-coding it

No functional changes. Signed-off-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
mariux64 · Aug 16, 2017 · e5600fd · e5600fd
1 parent ebcc930
commit e5600fd
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
@@ -4762,7 +4762,7 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
 	     btrfs_cmp_device_info, NULL);
 
 	/* round down to number of usable stripes */
-	ndevs -= ndevs % devs_increment;
+	ndevs = round_down(ndevs, devs_increment);
 
 	if (ndevs < devs_increment * sub_stripes || ndevs < devs_min) {
 		ret = -ENOSPC;