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=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 58291C11D2F for ; Mon, 24 Feb 2020 15:26:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 322FE20714 for ; Mon, 24 Feb 2020 15:26:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727756AbgBXP0n (ORCPT ); Mon, 24 Feb 2020 10:26:43 -0500 Received: from mx2.suse.de ([195.135.220.15]:48988 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727539AbgBXP0n (ORCPT ); Mon, 24 Feb 2020 10:26:43 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 99939ADBE; Mon, 24 Feb 2020 15:26:41 +0000 (UTC) From: Nikolay Borisov To: linux-btrfs@vger.kernel.org Cc: Nikolay Borisov Subject: [PATCH v3 0/2] Refactor snapshot vs nocow writers locking Date: Mon, 24 Feb 2020 17:26:35 +0200 Message-Id: <20200224152637.30774-1-nborisov@suse.com> X-Mailer: git-send-email 2.17.1 Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Here is v3 of the DRW locking patches. Main changes in this verison: * Removed EXPORT_SYMBOL for function since I do not intend to submit the locktorture patch * Added high-level comment as per David's request. V2: * Fixed all checkpatch warnings (Andrea Parri) * Properly call write_unlock in btrfs_drw_try_write_lock (Filipe Manana) * Comment fix. * Stress tested it via locktorture. Survived for 8 straight days on a 4 socket 48 thread machine. Nikolay Borisov (2): btrfs: convert snapshot/nocow exlcusion to drw lock btrfs: Hook btrfs' DRW lock to locktorture infrastructure fs/btrfs/ctree.h | 9 +---- fs/btrfs/disk-io.c | 46 ++++++--------------- fs/btrfs/extent-tree.c | 44 --------------------- fs/btrfs/file.c | 11 +++--- fs/btrfs/inode.c | 8 ++-- fs/btrfs/ioctl.c | 10 ++--- fs/btrfs/locking.c | 5 +++ fs/btrfs/locking.h | 1 + kernel/locking/locktorture.c | 77 +++++++++++++++++++++++++++++++++++- 9 files changed, 107 insertions(+), 104 deletions(-) -- 2.17.1