From: Stuart Bennett <stuart@freedesktop.org>
Date: Fri, 30 Jan 2009 17:38:59 +0000 (+0000)
Subject: x86 mmiotrace: WARN_ONCE if dis/arming a page fails
X-Git-Tag: v2.6.29-rc7~4^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e9d54cae8f03e7f963a12f44bd50d68f49b9ea36;p=pandora-kernel.git

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>
---

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