From e9d54cae8f03e7f963a12f44bd50d68f49b9ea36 Mon Sep 17 00:00:00 2001
From: Stuart Bennett <stuart@freedesktop.org>
Date: Fri, 30 Jan 2009 17:38:59 +0000
Subject: [PATCH] x86 mmiotrace: WARN_ONCE if dis/arming a page fails

Print a full warning once, if arming or disarming a page fails.

Also, if initial arming fails, do not handle the page further. This
avoids the possibility of a page failing to arm and then later claiming
to have handled any fault on that page.

WARN_ONCE added by Pekka Paalanen.

Signed-off-by: Stuart Bennett <stuart@freedesktop.org>
Signed-off-by: Pekka Paalanen <pq@iki.fi>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
Reading git-format-patch failed