- * Restart handler
- */
-static long futex_lock_pi_restart(struct restart_block *restart)
-{
- struct hrtimer_sleeper timeout, *to = NULL;
- int ret;
-
- restart->fn = do_no_restart_syscall;
-
- if (restart->arg2 || restart->arg3) {
- to = &timeout;
- hrtimer_init(&to->timer, CLOCK_REALTIME, HRTIMER_ABS);
- hrtimer_init_sleeper(to, current);
- to->timer.expires.tv64 = ((u64)restart->arg1 << 32) |
- (u64) restart->arg0;
- }
-
- pr_debug("lock_pi restart: %p, %d (%d)\n",
- (u32 __user *)restart->arg0, current->pid);
-
- ret = do_futex_lock_pi((u32 __user *)restart->arg0, restart->arg1,
- 0, to);
-
- if (ret != -EINTR)
- return ret;
-
- restart->fn = futex_lock_pi_restart;
-
- /* The other values are filled in */
- return -ERESTART_RESTARTBLOCK;
-}
-
-/*
- * Called from the syscall entry below.
- */
-static int futex_lock_pi(u32 __user *uaddr, int detect, unsigned long sec,
- long nsec, int trylock)
-{
- struct hrtimer_sleeper timeout, *to = NULL;
- struct restart_block *restart;
- int ret;
-
- if (sec != MAX_SCHEDULE_TIMEOUT) {
- to = &timeout;
- hrtimer_init(&to->timer, CLOCK_REALTIME, HRTIMER_ABS);
- hrtimer_init_sleeper(to, current);
- to->timer.expires = ktime_set(sec, nsec);
- }
-
- ret = do_futex_lock_pi(uaddr, detect, trylock, to);
-
- if (ret != -EINTR)
- return ret;
-
- pr_debug("lock_pi interrupted: %p, %d (%d)\n", uaddr, current->pid);
-
- restart = ¤t_thread_info()->restart_block;
- restart->fn = futex_lock_pi_restart;
- restart->arg0 = (unsigned long) uaddr;
- restart->arg1 = detect;
- if (to) {
- restart->arg2 = to->timer.expires.tv64 & 0xFFFFFFFF;
- restart->arg3 = to->timer.expires.tv64 >> 32;
- } else
- restart->arg2 = restart->arg3 = 0;
-
- return -ERESTART_RESTARTBLOCK;
-}
-
-/*