From patchwork Mon Nov 12 01:14:48 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: NeilBrown X-Patchwork-Id: 10677949 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 29B2B15A6 for ; Mon, 12 Nov 2018 01:17:00 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 15CC329F8E for ; Mon, 12 Nov 2018 01:17:00 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 047B129FFF; Mon, 12 Nov 2018 01:17:00 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9C8AB29F8E for ; Mon, 12 Nov 2018 01:16:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729762AbeKLLHZ (ORCPT ); Mon, 12 Nov 2018 06:07:25 -0500 Received: from mx2.suse.de ([195.135.220.15]:56656 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729519AbeKLLHZ (ORCPT ); Mon, 12 Nov 2018 06:07:25 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id A42BCADE3; Mon, 12 Nov 2018 01:16:42 +0000 (UTC) From: NeilBrown To: Jeff Layton , Alexander Viro Date: Mon, 12 Nov 2018 12:14:48 +1100 Subject: [PATCH 00/12 v5] locks: avoid thundering-herd wake-ups Cc: "J. Bruce Fields" , Martin Wilck , linux-fsdevel@vger.kernel.org, Frank Filz , linux-kernel@vger.kernel.org Message-ID: <154198490921.14364.13726904731989686092.stgit@noble> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Changes: - field names improved as requested by Bruce. "fl_blocked_requests" is a list of blocked requests, linked through fl_block_member - the introductory text has been moved to a commit comment as suggested by Bruce - documentation added to locks.c as suggested by Bruce - I made a few little changes - flock_make_lock() now properly initialized a lock - using the code from Jeff - code actually compiles for ocfs2 and gfs2 Thanks, NeilBrown --- NeilBrown (12): fs/locks: rename some lists and pointers. fs/locks: split out __locks_wake_up_blocks(). NFS: use locks_copy_lock() to copy locks. gfs2: properly initial file_lock used for unlock. ocfs2: properly initial file_lock used for unlock. locks: use properly initialized file_lock when unlocking. fs/locks: allow a lock request to block other requests. fs/locks: always delete_block after waiting. fs/locks: change all *_conflict() functions to return bool. fs/locks: create a tree of dependent requests. locks: merge posix_unblock_lock() and locks_delete_block() VFS: locks: remove unnecessary white space. fs/cifs/file.c | 4 fs/gfs2/file.c | 10 + fs/lockd/svclock.c | 2 fs/locks.c | 319 ++++++++++++++++++++++++--------------- fs/nfs/nfs4proc.c | 6 - fs/nfsd/nfs4state.c | 6 - fs/ocfs2/locks.c | 10 + include/linux/fs.h | 13 +- include/trace/events/filelock.h | 16 +- 9 files changed, 230 insertions(+), 156 deletions(-) -- Signature