From cae012d8532879544326fff5fa2ae22a6dfe8e23 Mon Sep 17 00:00:00 2001 From: Boaz Harrosh Date: Mon, 2 Nov 2009 18:19:24 +0200 Subject: [PATCH] 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: Boaz Harrosh --- fs/exofs/super.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/fs/exofs/super.c b/fs/exofs/super.c index 920f016..28add3e 100644 --- a/fs/exofs/super.c +++ b/fs/exofs/super.c @@ -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; -- 1.8.2.3