linux-kernel - Re: Crash on WRITE SAME

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Message-ID: <20140702183607.GA19117@infradead.org>
Date:	Wed, 2 Jul 2014 11:36:07 -0700
From:	Christoph Hellwig <hch@...radead.org>
To:	Mikulas Patocka <mpatocka@...hat.com>
Cc:	Sagi Grimberg <sagig@...lanox.com>, linux-scsi@...r.kernel.org,
	linux-kernel@...r.kernel.org, Mike Christie <michaelc@...wisc.edu>,
	Nicholas Bellinger <nab@...ux-iscsi.org>
Subject: Re: Crash on WRITE SAME

On Wed, Jul 02, 2014 at 02:29:05PM -0400, Mikulas Patocka wrote:
> And what about protection information for commands that transfer partial 
> sectors? (for example, UMAP transfers 24 bytes). Should 
> scsi_transfer_length return 24 or 32 in this case?

As far as I understand so far PI is only defined for READ/WRITE
commands.  But I'll defer to Martin who is a much better source for
information on this topic.

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