f2fs: find parent dentry correctly
authorSheng Yong <shengyong1@huawei.com>
Sat, 4 Jun 2016 14:01:28 +0000 (22:01 +0800)
committerJaegeuk Kim <jaegeuk@kernel.org>
Wed, 15 Jun 2016 22:32:35 +0000 (15:32 -0700)
commit8be0fea9c09d5be1693e50d1439f14878837fa4f
tree9f6d9815115d995c317b70e8a4c58ddff2e3e57c
parentc92737ceecaf24643cc58182afdf9b13074cfb0d
f2fs: find parent dentry correctly

If dotdot directory is corrupted, its slot may be ocupied by another
file. In this case, dentry[1] is not the parent directory. Rename and
cross-rename will update the inode in dentry[1] incorrectly.   This
patch finds dotdot dentry by name.

Signed-off-by: Sheng Yong <shengyong1@huawei.com>
[Jaegeuk Kim: remove wron bug_on]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
fs/f2fs/dir.c
fs/f2fs/f2fs.h
fs/f2fs/inline.c