Changelog:
===========
- don't use O_DIRECT on the RT device
- Fix memory leak
- suggest -x rather than assert for false roots in restore
- fix rootdir due to xfsdump bulkstat misuse
Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>