Commit 06805f4c authored by Chi Zhiling's avatar Chi Zhiling Committed by Namjae Jeon
Browse files

exfat: improve exfat_count_num_clusters 



Since exfat_ent_get support cache buffer head, let's apply it to
exfat_count_num_clusters.

Signed-off-by: default avatarChi Zhiling <chizhiling@kylinos.cn>
Reviewed-by: default avatarYuezhang Mo <Yuezhang.Mo@sony.com>
Signed-off-by: default avatarNamjae Jeon <linkinjeon@kernel.org>
parent 5cf0288f

fs/exfat/fatent.c

+3 −1
Original line number Diff line number Diff line
@@ -484,6 +484,7 @@ int exfat_count_num_clusters(struct super_block *sb, 
	unsigned int i, count;

	unsigned int clu;

	struct exfat_sb_info *sbi = EXFAT_SB(sb);

	struct buffer_head *bh = NULL;



	if (!p_chain->dir || p_chain->dir == EXFAT_EOF_CLUSTER) {

		*ret_count = 0;
@@ -499,12 +500,13 @@ int exfat_count_num_clusters(struct super_block *sb, 
	count = 0;

	for (i = EXFAT_FIRST_CLUSTER; i < sbi->num_clusters; i++) {

		count++;

		if (exfat_ent_get(sb, clu, &clu, NULL))

		if (exfat_ent_get(sb, clu, &clu, &bh))

			return -EIO;

		if (clu == EXFAT_EOF_CLUSTER)

			break;

	}



	brelse(bh);

	*ret_count = count;



	/*