Commit d92fcf05 authored by Oleg Nesterov's avatar 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: default avatarOleg Nesterov <oleg@redhat.com>
parent 0666fb51
......@@ -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;
}
......
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