1ST_VALID	0x0020
2ST_RDONLY	0x0001
3ST_NOSUID	0x0002
4ST_NODEV	0x0004
5ST_NOEXEC	0x0008
6ST_SYNCHRONOUS	0x0010
7ST_MANDLOCK	0x0040
8ST_NOATIME	0x0400
9ST_NODIRATIME	0x0800
10ST_RELATIME	0x1000
11