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authorChao Yu <yuchao0@huawei.com>2016-05-14 19:03:52 +0800
committerJaegeuk Kim <jaegeuk@kernel.org>2016-05-16 15:32:00 -0700
commite4103849ba784368e802eec4f15832ac54eb7d39 (patch)
treeeb42e17ca55e84dccecd4034070ada4d5beff7c6 /Documentation/CodingStyle
parent99e3e858a486ccef93da0d4b67a71ed1c171b2fe (diff)
downloadlinux-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 ../ -????????? ? ? ? ? ? 0 -????????? ? ? ? ? ? 1 -????????? ? ? ? ? ? 10 -????????? ? ? ? ? ? 100 -????????? ? ? ? ? ? 101 -????????? ? ? ? ? ? 102 Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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