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ide: Stop disks on reboot for laptop which cuts power 

My laptop (Acer Travelmate 660) always cuts the power when rebooting
which causes the disk to emergency-park it's head.

Add a dmi check to stop disk as for shutdown on this laptop.

Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bruno Prémont 2009-04-22 20:33:41 +02:00 committed by Bartlomiej Zolnierkiewicz
parent a1f9a89c90
commit b0aedb04ea
1 changed files with 16 additions and 1 deletions
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17
drivers/ide/ide-gd.c
View File

@ -7,6 +7,7 @@
#include <linux/mutex.h>
#include <linux/ide.h>
#include <linux/hdreg.h>
#include <linux/dmi.h>
#if !defined(CONFIG_DEBUG_BLOCK_EXT_DEVT)
#define IDE_DISK_MINORS (1 << PARTN_BITS)
@ -99,6 +100,19 @@ static void ide_gd_resume(ide_drive_t *drive)
(void)drive->disk_ops->get_capacity(drive);
}
static const struct dmi_system_id ide_coldreboot_table[] = {
{
/* Acer TravelMate 66x cuts power during reboot */
.ident = "Acer TravelMate 660",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 660"),
},
},
{ } /* terminate list */
};
static void ide_gd_shutdown(ide_drive_t *drive)
{
#ifdef CONFIG_ALPHA
@ -115,7 +129,8 @@ static void ide_gd_shutdown(ide_drive_t *drive)
the disk to expire its write cache. */
if (system_state != SYSTEM_POWER_OFF) {
#else
if (system_state == SYSTEM_RESTART) {
if (system_state == SYSTEM_RESTART &&
!dmi_check_system(ide_coldreboot_table)) {
#endif
drive->disk_ops->flush(drive);
return;