From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qc0-f174.google.com (mail-qc0-f174.google.com [209.85.216.174]) by kanga.kvack.org (Postfix) with ESMTP id 0C4F86B0287 for ; Fri, 21 Mar 2014 19:49:01 -0400 (EDT) Received: by mail-qc0-f174.google.com with SMTP id c9so3574556qcz.5 for ; Fri, 21 Mar 2014 16:49:00 -0700 (PDT) Date: Fri, 21 Mar 2014 16:48:32 -0700 From: Zach Brown Subject: Re: [RFC PATCH 0/5] userspace PI passthrough via AIO/DIO Message-ID: <20140321234832.GR10561@lenny.home.zabbo.net> References: <20140321043041.8428.79003.stgit@birch.djwong.org> <20140321213959.GC5437@birch.djwong.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140321213959.GC5437@birch.djwong.org> Sender: owner-linux-mm@kvack.org List-ID: To: "Darrick J. Wong" Cc: Jeff Moyer , axboe@kernel.dk, martin.petersen@oracle.com, JBottomley@parallels.com, bcrl@kvack.org, viro@zeniv.linux.org.uk, linux-fsdevel@vger.kernel.org, linux-aio@kvack.org, linux-scsi@vger.kernel.org, linux-mm@kvack.org On Fri, Mar 21, 2014 at 02:39:59PM -0700, Darrick J. Wong wrote: > On Fri, Mar 21, 2014 at 10:57:31AM -0400, Jeff Moyer wrote: > > "Darrick J. Wong" writes: > > > > > This RFC provides a rough implementation of a mechanism to allow > > > userspace to attach protection information (e.g. T10 DIF) data to a > > > disk write and to receive the information alongside a disk read. The > > > interface is an extension to the AIO interface: two new commands > > > (IOCB_CMD_P{READ,WRITE}VM) are provided. The last struct iovec in the > > > > Sorry for the shallow question, but what does that M stand for? > > Hmmm... I really don't remember why I picked 'M'. Probably because it implied > that the IO has extra 'M'etadata associated with it. Magical! :) - z -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org