From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: Re: sense handling improvements Date: Wed, 15 Feb 2017 16:04:06 +0100 Message-ID: <20170215150406.GA26549@lst.de> References: <20170214191600.17480-1-hch@lst.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-block-owner@vger.kernel.org To: Hannes Reinecke Cc: Christoph Hellwig , axboe@kernek.dk, linux-block@vger.kernel.org, linux-scsi@vger.kernel.org List-Id: linux-scsi@vger.kernel.org On Wed, Feb 15, 2017 at 09:19:18AM +0100, Hannes Reinecke wrote: > On 02/14/2017 08:15 PM, Christoph Hellwig wrote: > > Hi all, > > > > this series is on top of the scsi_request changes in Jens' tree and > > further improves the handling of the sense buffer. > > > Sorry, but I'm feeling really daft: which scsi_request changes? That is the "split scsi passthrough fields out of struct request" series. > To be found in which tree? Jens' for-next tree, as mentioned above. > Have we audited all drivers to _not_ do DMA into the sense buffer? > By first glance some still do, so they'll break horribly when moving the > sense buffer onto the stack ... With the above series the sense buffer is allocate by the driver, and they will always DMA into that.