fstrans_is_owner
const bool was_suspended = fstrans_is_owner(mp);
fstrans_is_owner(vp->v_mount));
fstrans_is_owner(vp->v_mount));
KASSERT(fstrans_is_owner(mp));
int fstrans_is_owner(struct mount *);
KASSERT(fstrans_is_owner(mp));
KASSERT(fstrans_is_owner(mp));