LK_HOLDER
if (LK_HOLDER(lk->lk_lock) != tid)
v = LK_HOLDER(x);
return ((x & LK_SHARE) ? NULL : (struct thread *)LK_HOLDER(x));
owner = (struct thread *)LK_HOLDER(x);
owner = (struct thread *)LK_HOLDER(x);
if (LK_HOLDER(x) == tid) {
owner = (struct thread *)LK_HOLDER(x);
owner = (struct thread *)LK_HOLDER(x);
(LK_HOLDER((v)) == LK_KERNPROC)
#define LK_SHARERS(x) (LK_HOLDER(x) >> LK_SHARERS_SHIFT)