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 X-Spam-Level: X-Spam-Status: No, score=-5.5 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 254BCC433E2 for ; Mon, 31 Aug 2020 22:42:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 05C5C206FA for ; Mon, 31 Aug 2020 22:42:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726292AbgHaWmb (ORCPT ); Mon, 31 Aug 2020 18:42:31 -0400 Received: from mx2.suse.de ([195.135.220.15]:46370 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726117AbgHaWmb (ORCPT ); Mon, 31 Aug 2020 18:42:31 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 34282B596; Mon, 31 Aug 2020 22:42:30 +0000 (UTC) Received: by ds.suse.cz (Postfix, from userid 10065) id EA458DA7CF; Tue, 1 Sep 2020 00:41:18 +0200 (CEST) Date: Tue, 1 Sep 2020 00:41:18 +0200 From: David Sterba To: David Sterba Cc: Josef Bacik , linux-btrfs@vger.kernel.org, kernel-team@fb.com Subject: Re: [PATCH 00/12] Convert btree locking to an rwsem Message-ID: <20200831224118.GE28318@twin.jikos.cz> Reply-To: dsterba@suse.cz Mail-Followup-To: dsterba@suse.cz, Josef Bacik , linux-btrfs@vger.kernel.org, kernel-team@fb.com References: <20200826145822.GG28318@twin.jikos.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200826145822.GG28318@twin.jikos.cz> User-Agent: Mutt/1.5.23.1-rc1 (2014-03-12) Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On Wed, Aug 26, 2020 at 04:58:22PM +0200, David Sterba wrote: > On Thu, Aug 20, 2020 at 11:45:59AM -0400, Josef Bacik wrote: > > v1->v2: > > - broke the lockdep fixes out into their own series. > > - added a new fix where we need to handle double splitting leaves in some cases. > > The split lockdep patches are now in misc-next, I'd like to continue > with a piecemal steps with the whole rwsem series: > > - preparatory stuff, like the annotations patches 1-10 1-9 are now in misc-next. > - switch locks to rwsem (1 patch) I'll add that to for-next. This is a significant change, so far the other big changes seem to be witout problems (data tickets, iomap-dio). The plan is to keep the rwsem, with fallback to reverting this patch in case something bad pops up. The lockdep warnings triggered by rwsem should be fixed in misc-next.