linux-kernel - Re: [RFC PATCH 0/3] differentiate between I/O errors

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Date:	Thu, 13 Jan 2011 20:15:39 -0500
From:	Mike Snitzer <snitzer@...hat.com>
To:	Hannes Reinecke <hare@...e.de>, k-ueda@...jp.nec.com,
	michaelc@...wisc.edu, tytso@....edu, sshtylyov@...sta.com,
	linux-scsi@...r.kernel.org, jaxboe@...ionio.com, jack@...e.cz,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	swhiteho@...hat.com, linux-raid@...r.kernel.org,
	linux-ide@...r.kernel.org, dm-devel@...hat.com,
	James.Bottomley@...e.de, konishi.ryusuke@....ntt.co.jp,
	j-nomura@...jp.nec.com, vst@...b.net, rwheeler@...hat.com,
	hch@....de, chris.mason@...cle.com, tj@...nel.org
Subject: Re: [RFC PATCH 0/3] differentiate between I/O errors

On Fri, Dec 10 2010 at  6:40pm -0500,
Malahal Naineni <malahal@...ibm.com> wrote:

> Mike Snitzer [snitzer@...hat.com] wrote:
> > Refreshed Hannes' initial "scsi: Detailed I/O errors" patch against
> > v2.6.37-rc5.  v2 introduces __scsi_error_from_host_byte to avoid
> > the duplicate switch statement.  Also a few whitespace and comment
> > changes.
> > 
> > Split DM mpath change out to separate v2 patch; failed discard is now
> > retryable in the face of a non-target IO error.
> > 
> > Added improved block layer's I/O error message (based on the finer
> > grained I/O error returns afforded by SCSI).
> > 
> > Comments/suggestions are welcome.
> 
> I did test the Hannes original patch with the latest Linus' git tree! I
> used scsi_debug to simulate path failures as well as 'Media' failures
> and it did work as expected. I will test your patches soon.

Hi Malahal,

I was wondering if you had any feedback (testing or otherwise) for these
patches:

https://patchwork.kernel.org/patch/384612/
https://patchwork.kernel.org/patch/384602/
https://patchwork.kernel.org/patch/390882/

We haven't heard from Hannes in a bit but I was hoping we could at least
understand that the few changes I made are agreeable and working as
expected.

Thanks,
Mike
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