Commit d92fcf05 authored May 25, 2011 by Oleg Nesterov

signal: sys_pause() should check signal_pending()



ERESTART* is always wrong without TIF_SIGPENDING. Teach sys_pause()
to handle the spurious wakeup correctly.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>

parent 0666fb51

kernel/signal.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -3023,8 +3023,10 @@ SYSCALL_DEFINE2(signal, int, sig, __sighandler_t, handler)

		SYSCALL_DEFINE0(pause)
		{
		while (!signal_pending(current)) {
		current->state = TASK_INTERRUPTIBLE;
		schedule();
		}
		return -ERESTARTNOHAND;
		}