From: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
From: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---
25-akpm/drivers/ide/ide-disk.c | 15 +++++++++++++++
1 files changed, 15 insertions(+)
diff -puN drivers/ide/ide-disk.c~ide-dont-put-disks-in-standby-mode-on-halt-on-alpha drivers/ide/ide-disk.c
--- 25/drivers/ide/ide-disk.c~ide-dont-put-disks-in-standby-mode-on-halt-on-alpha Tue Jun 1 17:06:18 2004
+++ 25-akpm/drivers/ide/ide-disk.c Tue Jun 1 17:06:18 2004
@@ -1767,7 +1767,22 @@ static void ide_device_shutdown(struct d
{
ide_drive_t *drive = container_of(dev, ide_drive_t, gendev);
+#ifdef CONFIG_ALPHA
+ /* On Alpha, halt(8) doesn't actually turn the machine off,
+ it puts you into the sort of firmware monitor. Typically,
+ it's used to boot another kernel image, so it's not much
+ different from reboot(8). Therefore, we don't need to
+ spin down the disk in this case, especially since Alpha
+ firmware doesn't handle disks in standby mode properly.
+ On the other hand, it's reasonably safe to turn the power
+ off when the shutdown process reaches the firmware prompt,
+ as the firmware initialization takes rather long time -
+ at least 10 seconds, which should be sufficient for
+ the disk to expire its write cache. */
+ if (system_state != SYSTEM_POWER_OFF) {
+#else
if (system_state == SYSTEM_RESTART) {
+#endif
ide_cacheflush_p(drive);
return;
}
_