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| author | Chao Yu <yuchao0@huawei.com> | 2016-05-14 19:03:52 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-05-16 15:32:00 -0700 |
| commit | e4103849ba784368e802eec4f15832ac54eb7d39 (patch) | |
| tree | eb42e17ca55e84dccecd4034070ada4d5beff7c6 /fs/f2fs | |
| parent | 99e3e858a486ccef93da0d4b67a71ed1c171b2fe (diff) | |
| download | linux-e4103849ba784368e802eec4f15832ac54eb7d39.tar.bz2 | |
f2fs: fix i_current_depth during inline dentry conversion
With below steps, we will see that dentry page becoming unaccessable later.
This is because we forget updating i_current_depth in inode during inline
dentry conversion, after that, once we failed at somewhere, it will leave
i_current_depth as 0 in non-inline directory. Then, during ->lookup, the
current_depth value makes all dentry pages in first level invisible. Fix
it.
1) mount f2fs with inline_dentry option
2) mkdir dir
3) touch 180 files named [0-179] in dir
4) touch 180 in dir (fail after inline dir conversion)
5) ll dir
ls: cannot access /mnt/f2fs/dir/0: No such file or directory
ls: cannot access /mnt/f2fs/dir/1: No such file or directory
ls: cannot access /mnt/f2fs/dir/2: No such file or directory
ls: cannot access /mnt/f2fs/dir/3: No such file or directory
ls: cannot access /mnt/f2fs/dir/4: No such file or directory
drwxr-xr-x 2 root root 4096 may 13 21:47 ./
drwxr-xr-x 3 root root 4096 may 13 21:46 ../
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Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/inline.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c index 8a51955b68aa..60ba7ac808b9 100644 --- a/fs/f2fs/inline.c +++ b/fs/f2fs/inline.c @@ -400,6 +400,7 @@ static int f2fs_move_inline_dirents(struct inode *dir, struct page *ipage, stat_dec_inline_dir(dir); clear_inode_flag(F2FS_I(dir), FI_INLINE_DENTRY); + F2FS_I(dir)->i_current_depth = 1; if (i_size_read(dir) < PAGE_SIZE) { i_size_write(dir, PAGE_SIZE); set_inode_flag(F2FS_I(dir), FI_UPDATE_DIR); |