From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qa0-f51.google.com (mail-qa0-f51.google.com [209.85.216.51]) by kanga.kvack.org (Postfix) with ESMTP id 1CD486B012B for ; Wed, 2 Apr 2014 18:33:17 -0400 (EDT) Received: by mail-qa0-f51.google.com with SMTP id j7so837707qaq.24 for ; Wed, 02 Apr 2014 15:33:16 -0700 (PDT) Date: Wed, 2 Apr 2014 15:33:11 -0700 From: Zach Brown Subject: Re: [PATCH 3/6] aio/dio: enable PI passthrough Message-ID: <20140402223311.GN2394@lenny.home.zabbo.net> References: <20140324162231.10848.4863.stgit@birch.djwong.org> <20140324162251.10848.56452.stgit@birch.djwong.org> <20140402200133.GK2394@lenny.home.zabbo.net> <20140402204420.GB10230@birch.djwong.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140402204420.GB10230@birch.djwong.org> Sender: owner-linux-mm@kvack.org List-ID: To: "Darrick J. Wong" Cc: axboe@kernel.dk, martin.petersen@oracle.com, JBottomley@parallels.com, jmoyer@redhat.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 > One thing I'm not sure about: What's the largest IO (in terms of # of blocks, > not # of struct iovecs) that I can throw at the kernel? Yeah, dunno. I'd guess big :). I'd hope that the PI code already has a way to clamp the size of bios if there's a limit to the size of PI data that can be managed downstream? - 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