From patchwork Mon Nov 12 01:14:49 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: NeilBrown X-Patchwork-Id: 10677959 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 41E3814BD for ; Mon, 12 Nov 2018 01:17:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 30D7629F8E for ; Mon, 12 Nov 2018 01:17:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 24F5929FEF; Mon, 12 Nov 2018 01:17:18 +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 C689C29F8E for ; Mon, 12 Nov 2018 01:17:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730012AbeKLLH6 (ORCPT ); Mon, 12 Nov 2018 06:07:58 -0500 Received: from mx2.suse.de ([195.135.220.15]:56816 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726674AbeKLLH6 (ORCPT ); Mon, 12 Nov 2018 06:07:58 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 97D43ADE3; Mon, 12 Nov 2018 01:17:15 +0000 (UTC) From: NeilBrown To: Jeff Layton , Alexander Viro Date: Mon, 12 Nov 2018 12:14:49 +1100 Subject: [PATCH 05/12] ocfs2: properly initial file_lock used for unlock. Cc: "J. Bruce Fields" , Martin Wilck , linux-fsdevel@vger.kernel.org, Frank Filz , linux-kernel@vger.kernel.org Message-ID: <154198528906.14364.3671063027499306155.stgit@noble> In-Reply-To: <154198490921.14364.13726904731989686092.stgit@noble> References: <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 Rather than assuming all-zeros is sufficient, use the available API to initialize the file_lock structure use for unlock. VFS-level changes will soon make it important that the list_heads in file_lock are always properly initialized. Signed-off-by: NeilBrown --- fs/ocfs2/locks.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/fs/ocfs2/locks.c b/fs/ocfs2/locks.c index d56f0079b858..b11acd34001a 100644 --- a/fs/ocfs2/locks.c +++ b/fs/ocfs2/locks.c @@ -52,6 +52,7 @@ static int ocfs2_do_flock(struct file *file, struct inode *inode, if (lockres->l_flags & OCFS2_LOCK_ATTACHED && lockres->l_level > LKM_NLMODE) { int old_level = 0; + struct file_lock request; if (lockres->l_level == LKM_EXMODE) old_level = 1; @@ -66,11 +67,10 @@ static int ocfs2_do_flock(struct file *file, struct inode *inode, * level. */ - locks_lock_file_wait(file, - &(struct file_lock) { - .fl_type = F_UNLCK, - .fl_flags = FL_FLOCK - }); + locks_init_lock(&request); + request.fl_type = F_UNLCK; + request.fl_flags = FL_FLOCK; + locks_lock_file_wait(file, &request); ocfs2_file_unlock(file); }