kernel/time/posix-cpu-timers.c

1521 		struct restart_block *restart;
1581 		restart = &current->restart_block;
1590 static long posix_cpu_nsleep_restart(struct restart_block *restart_block);
1595 	struct restart_block *restart_block = &current->restart_block;
1613 		restart_block->nanosleep.clockid = which_clock;
1614 		set_restart_fn(restart_block, posix_cpu_nsleep_restart);
1619 static long posix_cpu_nsleep_restart(struct restart_block *restart_block)
1621 	clockid_t which_clock = restart_block->nanosleep.clockid;
1624 	t = ns_to_timespec64(restart_block->nanosleep.expires);