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Commit 3800dc5d authored by Jaegeuk Kim's avatar Jaegeuk Kim Committed by Jaegeuk Kim
Browse files

f2fs: report # of free inodes more precisely 



commit 0cc091d0c8c34092c471fb5ae7335d075d08c324 upstream.

If the partition is small, we don't need to report total # of inodes including
hidden free nodes.

Reviewed-by: default avatarChao Yu <yuchao0@huawei.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 2249172b

fs/f2fs/super.c

+11 −3
Original line number Diff line number Diff line
@@ -668,6 +668,7 @@ static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf) 
	struct f2fs_sb_info *sbi = F2FS_SB(sb);

	u64 id = huge_encode_dev(sb->s_bdev->bd_dev);

	block_t total_count, user_block_count, start_count, ovp_count;

	u64 avail_node_count;



	total_count = le64_to_cpu(sbi->raw_super->block_count);

	user_block_count = sbi->user_block_count;
@@ -680,9 +681,16 @@ static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf) 
	buf->f_bfree = user_block_count - valid_user_blocks(sbi) + ovp_count;

	buf->f_bavail = user_block_count - valid_user_blocks(sbi);



	buf->f_files = sbi->total_node_count - F2FS_RESERVED_NODE_NUM;

	buf->f_ffree = min(buf->f_files - valid_node_count(sbi),

	avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM;



	if (avail_node_count > user_block_count) {

		buf->f_files = user_block_count;

		buf->f_ffree = buf->f_bavail;

	} else {

		buf->f_files = avail_node_count;

		buf->f_ffree = min(avail_node_count - valid_node_count(sbi),

					buf->f_bavail);

	}



	buf->f_namelen = F2FS_NAME_LEN;

	buf->f_fsid.val[0] = (u32)id;