LOCKFS_HLOCK
lock = LOCKFS_HLOCK;
case LOCKFS_HLOCK:
{ LOCKFS_HLOCK, "Hard Lock" },
lockfs.lf_lock = LOCKFS_HLOCK;
lockfs.lf_lock = LOCKFS_HLOCK;
#define ULOCKFS_HLOCK ((1 << LOCKFS_HLOCK)) /* hard lock */
#define LOCKFS_IS_HLOCK(LF) ((LF)->lf_lock == LOCKFS_HLOCK)