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Date:	Tue, 14 Nov 2006 09:54:58 +0100
From:	Pierre Ossman <>
To:	Jens Axboe <>
Subject: Re: How to cleanly shut down a block device

Jens Axboe wrote:
> SCSI just sets ->queuedata to NULL, if you store your device there you
> may do just that. Or just mark your device structure appropriately,
> there are no special places in the queue for that.

I've had another look at it, and I believe I have a solution. There is
one assumption I need to verify though.

After del_gendisk() and after I've flushed out any remaining requests,
is it ok to kill off the queue? Someone might still have the disk open,
so that would mean the queue is gone by the time gendisk's release
function is called.


     -- Pierre Ossman

  Linux kernel, MMC maintainer
  PulseAudio, core developer
  rdesktop, core developer

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