fsck.f2fs: fix missing dentries

If a directory has no dot and dotdot dentries, fsck.f2fs sets inline_dots for
the inode so that f2fs module can handle that properly.

Change-Id: I0addec888376c6baa2e04987e6b99495478838f3
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
3 files changed