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| author | Chao Yu <chao2.yu@samsung.com> | 2014-08-20 14:36:46 +0400 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2014-08-22 00:57:06 +0400 |
| commit | c200b1aa6cb460ce8c3ecf6fdc690d3949c3cc5d (patch) | |
| tree | 527fda78fcfcd4a879766e3c38cf8041fc10f1e8 /fs/f2fs/super.c | |
| parent | 04859dba50e6cd85c5d683d06010c5eafb27c893 (diff) | |
| download | linux-c200b1aa6cb460ce8c3ecf6fdc690d3949c3cc5d.tar.xz | |
f2fs: fix incorrect calculation with total/free inode num
Theoretically, our total inodes number is the same as total node number, but
there are three node ids are reserved in f2fs, they are 0, 1 (node nid), and 2
(meta nid), and they should never be used by user, so our total/free inode
number calculated in ->statfs is wrong.
This patch indroduces F2FS_RESERVED_NODE_NUM and then fixes this issue by
recalculating total/free inode number with the macro.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/super.c')
| -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 ddb1e9d36363..0f61f5aa587c 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -508,8 +508,8 @@ 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 = sbi->total_node_count; - buf->f_ffree = sbi->total_node_count - valid_inode_count(sbi); + buf->f_files = sbi->total_node_count - F2FS_RESERVED_NODE_NUM; + buf->f_ffree = buf->f_files - valid_inode_count(sbi); buf->f_namelen = F2FS_NAME_LEN; buf->f_fsid.val[0] = (u32)id; |