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| author | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2012-12-12 19:45:49 +0900 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2012-12-26 10:39:51 +0900 |
| commit | 1362b5e347e27102ea0fa99c9932bca1ecde330f (patch) | |
| tree | c7166c18990972677de0049a83c532c3802d3f60 /fs/f2fs | |
| parent | dfb7c0ceab57fee7618f4c9c31c5a89254e8530a (diff) | |
| download | blackbird-op-linux-1362b5e347e27102ea0fa99c9932bca1ecde330f.tar.gz blackbird-op-linux-1362b5e347e27102ea0fa99c9932bca1ecde330f.zip | |
f2fs: fix wrong calculation on f_files in statfs
In f2fs_statfs(), f_files should be the total number of available inodes
instead of the currently allocated inodes.
So, this patch should resolve the reported bug below.
Note that, showing 10% usage is not a bug, since f2fs reveals whole volume size
as much as possible and shows the space overhead as *used*.
This policy is fair enough with respect to other file systems.
<Reported Bug>
(loop0 is backed by 1GiB file)
$ mkfs.f2fs /dev/loop0
F2FS-tools: Ver: 1.1.0 (2012-12-11)
Info: sector size = 512
Info: total sectors = 2097152 (in 512bytes)
Info: zone aligned segment0 blkaddr: 512
Info: format successful
$ mount /dev/loop0 mnt/
$ df mnt/
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/loop0 1046528 98312 929784 10%
/home/zeta/linux-devel/mtd-bench/mnt
$ df mnt/ -i
Filesystem Inodes IUsed IFree IUse% Mounted on
/dev/loop0 1 -465918 465919 - /home/zeta/linux-devel/mtd-bench/mnt
Notice IUsed is negative. Also, 10% usage on a fresh f2fs seems too
much to be correct.
Reported-and-Tested-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/super.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 13867322cf5a..f4d9e03723db 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -148,8 +148,8 @@ static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf) buf->f_bfree = buf->f_blocks - valid_user_blocks(sbi) - ovp_count; buf->f_bavail = user_block_count - valid_user_blocks(sbi); - buf->f_files = valid_inode_count(sbi); - buf->f_ffree = sbi->total_node_count - valid_node_count(sbi); + buf->f_files = sbi->total_node_count; + buf->f_ffree = sbi->total_node_count - valid_inode_count(sbi); buf->f_namelen = F2FS_MAX_NAME_LEN; buf->f_fsid.val[0] = (u32)id; |
