From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joseph Glanville Subject: Re: [PATCH v5 02/12] dm: Use bioset's front_pad for dm_rq_clone_bio_info Date: Sat, 11 Aug 2012 15:24:45 +1000 Message-ID: References: <1344290921-25154-1-git-send-email-koverstreet@google.com> <1344290921-25154-3-git-send-email-koverstreet@google.com> <20120808220612.GA6983@dhcp-172-17-108-109.mtv.corp.google.com> <20120808235731.GA7262@moria.home.lan> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Return-path: In-Reply-To: <20120808235731.GA7262-jC9Py7bek1znysI04z7BkA@public.gmane.org> Sender: linux-bcache-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Kent Overstreet Cc: Tejun Heo , linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, dm-devel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, axboe-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org, agk-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, neilb-l3A5Bk7waGM@public.gmane.org, drbd-dev-cunTk1MwBs8qoQakbn7OcQ@public.gmane.org, vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, mpatocka-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, sage-BnTBU8nroG7k1uMJSBkQmQ@public.gmane.org, yehuda-L5o5AL9CYN0tUFlbccrkMA@public.gmane.org, snitzer-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org List-Id: linux-bcache@vger.kernel.org Hi Kent, Tejun On 9 August 2012 09:57, Kent Overstreet wrote: >> Also, how was this tested? > > Well, AFAICT the only request based dm target is multipath, and from the > documentation I've seen it doesn't appear to work without multipath > hardware, or at least I haven't seen it documented how. So, unless > there's another user I missed it's not been tested. Multipath can be tested quite easily with a loopback scsi target, you don't require specialized hardware. The easiest way to do this would probably be the built in LIO target + open_iscsi initiator. I haven't attempted running this current version of the patch series but I haven't run into issues with bcache+multipath in the past. > >> >> Thanks. >> >> -- >> tejun > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- CTO | Orion Virtualisation Solutions | www.orionvm.com.au Phone: 1300 56 99 52 | Mobile: 0428 754 846