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=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 F3C22C433E9 for ; Tue, 2 Mar 2021 06:40:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C40A260201 for ; Tue, 2 Mar 2021 06:40:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1573618AbhCBDYO (ORCPT ); Mon, 1 Mar 2021 22:24:14 -0500 Received: from mail.kernel.org ([198.145.29.99]:48400 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239942AbhCAU31 (ORCPT ); Mon, 1 Mar 2021 15:29:27 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id A90326541D; Mon, 1 Mar 2021 18:07:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1614622080; bh=TFqIPdUDjPW5xQIl2D2AAy/slzU2IEd+9FSUAXhCuK8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=z8Y10B/jo/GdCaPOZWJGD5XD2ncypoqxl0gq6yZe/2Yh9Us6v/QDLURP8vLeWVQW7 KGunasT4azHNWWkpqdYY+WZ6Lyp7Nd5y4oj1y4/CukFFhodat85IV4hZRUCSk04qDO IJTw67EmVv6IW4CKRPRGRVjUORLqijWYJ2vyA3zA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Bob Peterson Subject: [PATCH 5.11 749/775] gfs2: fix glock confusion in function signal_our_withdraw Date: Mon, 1 Mar 2021 17:15:17 +0100 Message-Id: <20210301161238.321521605@linuxfoundation.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210301161201.679371205@linuxfoundation.org> References: <20210301161201.679371205@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Bob Peterson commit f5f02fde9f52b2d769c1c2ddfd3d9c4a1fe739a7 upstream. If go_free is defined, function signal_our_withdraw is supposed to synchronize on the GLF_FREEING flag of the inode glock, but it accidentally does that on the live glock. Fix that and disambiguate the glock variables. Fixes: 601ef0d52e96 ("gfs2: Force withdraw to replay journals and wait for it to finish") Cc: stable@vger.kernel.org # v5.7+ Signed-off-by: Bob Peterson Signed-off-by: Greg Kroah-Hartman --- fs/gfs2/util.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) --- a/fs/gfs2/util.c +++ b/fs/gfs2/util.c @@ -93,9 +93,10 @@ out_unlock: static void signal_our_withdraw(struct gfs2_sbd *sdp) { - struct gfs2_glock *gl = sdp->sd_live_gh.gh_gl; + struct gfs2_glock *live_gl = sdp->sd_live_gh.gh_gl; struct inode *inode = sdp->sd_jdesc->jd_inode; struct gfs2_inode *ip = GFS2_I(inode); + struct gfs2_glock *i_gl = ip->i_gl; u64 no_formal_ino = ip->i_no_formal_ino; int ret = 0; int tries; @@ -141,7 +142,8 @@ static void signal_our_withdraw(struct g atomic_set(&sdp->sd_freeze_state, SFS_FROZEN); thaw_super(sdp->sd_vfs); } else { - wait_on_bit(&gl->gl_flags, GLF_DEMOTE, TASK_UNINTERRUPTIBLE); + wait_on_bit(&i_gl->gl_flags, GLF_DEMOTE, + TASK_UNINTERRUPTIBLE); } /* @@ -161,15 +163,15 @@ static void signal_our_withdraw(struct g * on other nodes to be successful, otherwise we remain the owner of * the glock as far as dlm is concerned. */ - if (gl->gl_ops->go_free) { - set_bit(GLF_FREEING, &gl->gl_flags); - wait_on_bit(&gl->gl_flags, GLF_FREEING, TASK_UNINTERRUPTIBLE); + if (i_gl->gl_ops->go_free) { + set_bit(GLF_FREEING, &i_gl->gl_flags); + wait_on_bit(&i_gl->gl_flags, GLF_FREEING, TASK_UNINTERRUPTIBLE); } /* * Dequeue the "live" glock, but keep a reference so it's never freed. */ - gfs2_glock_hold(gl); + gfs2_glock_hold(live_gl); gfs2_glock_dq_wait(&sdp->sd_live_gh); /* * We enqueue the "live" glock in EX so that all other nodes @@ -208,7 +210,7 @@ static void signal_our_withdraw(struct g gfs2_glock_nq(&sdp->sd_live_gh); } - gfs2_glock_queue_put(gl); /* drop the extra reference we acquired */ + gfs2_glock_queue_put(live_gl); /* drop extra reference we acquired */ clear_bit(SDF_WITHDRAW_RECOVERY, &sdp->sd_flags); /*