Re: PATCH: Fixes for ide-disk.c
Nigel Cunningham (email@example.com)
Mon, 07 Apr 2003 09:58:57 +1200
On Mon, 2003-04-07 at 09:00, Alan Cox wrote:
> There are multiple "blocked" fields to deal with. drive->blocked
> indicates we can't feed it commands because it is blocked due to
> power management.
> idedisk_suspend sets the drive->blocked field so that we panic if
> anything is sent to the disk after we turned it off (since it
> would be a corrupter).
> idedisk_resume is called on the resume path and marks the drive
> as safe to use.
> So if you hit that bug, you did I/O after shutting the drive down,
> which is not allowed.
Okay. So the right behaviour is to ignore multiple idedisk_suspend calls
and ignore multiple idedisk_resume calls?
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