From 1e86240f3fd33f8052141778ad3dffe2c96184d7 Mon Sep 17 00:00:00 2001
From: Michal Schmidt <xschmi00@stud.feec.vutbr.cz>
Date: Sun, 30 Jul 2006 03:03:29 -0700
Subject: [PATCH] IDE: Touch NMI watchdog during resume from STR

When resuming from suspend-to-RAM, the NMI watchdog detects a lockup in
ide_wait_not_busy.  Here's a screenshot of the trace taken by a digital
camera: http://www.uamt.feec.vutbr.cz/rizeni/pom/DSC03510-2.JPG

Let's touch the NMI watchdog in ide_wait_not_busy.  The system then resumes
correctly from STR.

[akpm@osdl.org: modular build fix]
Signed-off-by: Michal Schmidt <xschmi00@stud.feec.vutbr.cz>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 arch/i386/kernel/nmi.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'arch/i386')

diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c
index 2dd928a84645..acb351478e42 100644
--- a/arch/i386/kernel/nmi.c
+++ b/arch/i386/kernel/nmi.c
@@ -575,6 +575,7 @@ void touch_nmi_watchdog (void)
 	 */
 	touch_softlockup_watchdog();
 }
+EXPORT_SYMBOL(touch_nmi_watchdog);
 
 extern void die_nmi(struct pt_regs *, const char *msg);
 
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