linux-kernel - Re: [dm-devel] [PATCH 3/6] sd: implement the Persistent Reservation API

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Message-ID: <561FC6AA.3080508@sandisk.com>
Date:	Thu, 15 Oct 2015 08:30:50 -0700
From:	Bart Van Assche <bart.vanassche@...disk.com>
To:	device-mapper development <dm-devel@...hat.com>, <axboe@...com>
CC:	<linux-scsi@...r.kernel.org>, <linux-api@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-nvme@...ts.infradead.org>,
	<keith.busch@...el.com>, Christoph Hellwig <hch@....de>
Subject: Re: [dm-devel] [PATCH 3/6] sd: implement the Persistent Reservation
 API

On 10/15/2015 05:10 AM, Christoph Hellwig wrote:
> This is a mostly trivial mapping to the PERSISTENT RESERVE IN/OUT
> commands.

Hello Christoph,

Can you explain why this functionality has been added to the sd driver 
instead of the SCSI core ? Aren't persistent reservations a concept that 
applies to all SCSI device types ?

Thanks,

Bart.
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