diff options
| author | Chao Yu <chao2.yu@samsung.com> | 2014-08-20 18:36:46 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2014-08-21 13:57:06 -0700 |
| commit | c200b1aa6cb460ce8c3ecf6fdc690d3949c3cc5d (patch) | |
| tree | 527fda78fcfcd4a879766e3c38cf8041fc10f1e8 /fs/f2fs/node.c | |
| parent | 04859dba50e6cd85c5d683d06010c5eafb27c893 (diff) | |
| download | lwn-c200b1aa6cb460ce8c3ecf6fdc690d3949c3cc5d.tar.gz lwn-c200b1aa6cb460ce8c3ecf6fdc690d3949c3cc5d.zip | |
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/node.c')
| -rw-r--r-- | fs/f2fs/node.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index b4d964029fc7..044395c20ee9 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1957,7 +1957,7 @@ static int init_node_manager(struct f2fs_sb_info *sbi) nm_i->max_nid = NAT_ENTRY_PER_BLOCK * nat_blocks; /* not used nids: 0, node, meta, (and root counted as valid node) */ - nm_i->available_nids = nm_i->max_nid - 3; + nm_i->available_nids = nm_i->max_nid - F2FS_RESERVED_NODE_NUM; nm_i->fcnt = 0; nm_i->nat_cnt = 0; nm_i->ram_thresh = DEF_RAM_THRESHOLD; |