From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1830CC4332F for ; Tue, 13 Dec 2022 13:25:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235515AbiLMNZp (ORCPT ); Tue, 13 Dec 2022 08:25:45 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41710 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235584AbiLMNZf (ORCPT ); Tue, 13 Dec 2022 08:25:35 -0500 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8E5D42035B for ; Tue, 13 Dec 2022 05:25:34 -0800 (PST) Received: by verein.lst.de (Postfix, from userid 2407) id AE2F567373; Tue, 13 Dec 2022 14:25:31 +0100 (CET) Date: Tue, 13 Dec 2022 14:25:31 +0100 From: Christoph Hellwig To: Qu Wenruo Cc: Christoph Hellwig , Chris Mason , Josef Bacik , David Sterba , Qu Wenruo , linux-btrfs@vger.kernel.org Subject: Re: small raid56 cleanups v2 Message-ID: <20221213132531.GB21430@lst.de> References: <20221213084123.309790-1-hch@lst.de> <4a2e71d8-59ca-f29c-a6c7-f07685c2e528@gmx.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4a2e71d8-59ca-f29c-a6c7-f07685c2e528@gmx.com> User-Agent: Mutt/1.5.17 (2007-11-01) Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On Tue, Dec 13, 2022 at 04:59:35PM +0800, Qu Wenruo wrote: > The series looks good overall, but I'm more interested in how btrfs RAID56 > can help your other projects. The project here is mostly to hand off to workqueue earlier in the btrfs I/O completion path, and thus mostly avoiding irqsave spinlocking, similar to what XFS has been doing for quite a while.