udf: Clarify meaning of f_files in udf_statfs (356557be) · Commits · 戴 / test

UDF does not have separate preallocated table of inodes. So similarly to XFS we pretend that every free block is also a free inode in statfs(2) output. Clarify this in a comment. Signed-off-by:

Jan Kara <jack@suse.cz>

fs/udf/super.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -2402,6 +2402,10 @@ static int udf_statfs(struct dentry dentry, struct kstatfs buf)
		buf->f_blocks = sbi->s_partmaps[sbi->s_partition].s_partition_len;
		buf->f_bfree = udf_count_free(sb);
		buf->f_bavail = buf->f_bfree;
		/*
		* Let's pretend each free block is also a free 'inode' since UDF does
		* not have separate preallocated table of inodes.
		*/
		buf->f_files = (lvidiu != NULL ? (le32_to_cpu(lvidiu->numFiles) +
		le32_to_cpu(lvidiu->numDirs)) : 0)
		+ buf->f_bfree;

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