Re: [PATCH] ptrace: add ability to retrieve signals without removing from a queue (v2)

+	for (i = 0; i < arg.nr; i++) {
+		off = arg.off + i;
+
+		spin_lock_irq(&child->sighand->siglock);
+		list_for_each_entry(q, &pending->list, list) {
+			if (!off--) {
+				copy_siginfo(&info, &q->info);
+				break;
+			}
+		}
+		spin_unlock_irq(&child->sighand->siglock);

What's the point of arg.nr if you for every single siginfo drop the lock
and perform linear search anyway?

Thanks,
Pavel