From: Andrew Morton <akpm@osdl.org>
Date: Wed, 15 Feb 2006 23:17:37 +0000 (-0800)
Subject: [PATCH] ide: touch softlockup detector during pio
X-Git-Tag: v2.6.16-rc4~51
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=651c29a17f7ea0204dacbc2a5042d57b1c9e2e37;p=linux-2.6

[PATCH] ide: touch softlockup detector during pio

We're getting some softlockup false positives during heavy PIO operations.  So
poke the lockup detector.

Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index 9834dce4e2..0606bd2f60 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -34,6 +34,7 @@
 #include <linux/kernel.h>
 #include <linux/timer.h>
 #include <linux/mm.h>
+#include <linux/sched.h>
 #include <linux/interrupt.h>
 #include <linux/major.h>
 #include <linux/errno.h>
@@ -314,6 +315,8 @@ static void ide_pio_datablock(ide_drive_t *drive, struct request *rq,
 	if (rq->bio)	/* fs request */
 		rq->errors = 0;
 
+	touch_softlockup_watchdog();
+
 	switch (drive->hwif->data_phase) {
 	case TASKFILE_MULTI_IN:
 	case TASKFILE_MULTI_OUT: