linux-kernel - Re: [PATCH] cciss: Fix pci_driver.shutdown while device is still active

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Date:	Thu, 17 May 2007 15:15:25 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	mike.miller@...com
Cc:	Gerald Britton <gbritton@...m.mit.edu>, jens.axboe@...cle.com,
	torvalds@...ux-foundation.org,
	ISS StorageDev <iss_storagedev@...com>,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] cciss: Fix pci_driver.shutdown while device is still
 active

On Thu, 17 May 2007 16:33:12 -0500
"MIke Miller (OS Dev)" <mike.miller@...com> wrote:

> On Mon, 2007-05-14 at 17:53 +0000, Gerald Britton wrote:
> > Fix an Oops in the cciss driver caused by system shutdown while a filesystem
> > on a cciss device is still active.  The cciss_remove_one function only
> > properly removes the device if the device has been cleanly released by its
> > users, which is not the case when the pci_driver.shutdown method is called.
> > 
> > This patch adds a new cciss_shutdown function to better match the pattern
> > used by various SCSI drivers: deactivate device interrupts and flush caches.
> > It also alters the cciss_remove_one function to match and readds the
> > __devexit annotation that was removed when cciss_remove_one was serving as
> > the pci_driver.shutdown method.
> 
> Sorry I've taken so long to reply. I've been testing this patch with up
> to 512 logical volumes. Looks good. I may make a tweak or 2 after it's
> merged, I have other changes that touch the same code.
> 
> ACKed-by: Mike Miller <mike.miller@...com>
> 

Thanks.  I marked this as needed-in-2.6.21.x also.
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