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Commit cae012d8 authored by Boaz Harrosh's avatar Boaz Harrosh
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exofs: statfs blocks is sectors not FS blocks 



Even though exofs has a 4k block size, statfs blocks
is in sectors (512 bytes).

Also if target returns 0 for capacity then make it
ULLONG_MAX. df does not like zero-size filesystems

Signed-off-by: default avatarBoaz Harrosh <bharrosh@panasas.com>
parent 19fe294f

fs/exofs/super.c

+6 −4
Original line number Diff line number Diff line
@@ -473,9 +473,11 @@ static int exofs_statfs(struct dentry *dentry, struct kstatfs *buf) 
		goto out;



	ret = extract_attr_from_req(or, &attrs[0]);

	if (likely(!ret))

	if (likely(!ret)) {

		capacity = get_unaligned_be64(attrs[0].val_ptr);

	else

		if (unlikely(!capacity))

			capacity = ULLONG_MAX;

	} else

		EXOFS_DBGMSG("exofs_statfs: get capacity failed.\n");



	ret = extract_attr_from_req(or, &attrs[1]);
@@ -487,8 +489,8 @@ static int exofs_statfs(struct dentry *dentry, struct kstatfs *buf) 
	/* fill in the stats buffer */

	buf->f_type = EXOFS_SUPER_MAGIC;

	buf->f_bsize = EXOFS_BLKSIZE;

	buf->f_blocks = (capacity >> EXOFS_BLKSHIFT);

	buf->f_bfree = ((capacity - used) >> EXOFS_BLKSHIFT);

	buf->f_blocks = capacity >> 9;

	buf->f_bfree = (capacity - used) >> 9;

	buf->f_bavail = buf->f_bfree;

	buf->f_files = sbi->s_numfiles;

	buf->f_ffree = EXOFS_MAX_ID - sbi->s_numfiles;