From owner-svn-src-stable@freebsd.org Thu Jan 23 06:18:08 2020 Return-Path: Delivered-To: svn-src-stable@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id AB21722DFC8; Thu, 23 Jan 2020 06:18:08 +0000 (UTC) (envelope-from mckusick@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 483BsX44Rkz4BB9; Thu, 23 Jan 2020 06:18:08 +0000 (UTC) (envelope-from mckusick@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 86F62A32E; Thu, 23 Jan 2020 06:18:08 +0000 (UTC) (envelope-from mckusick@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 00N6I8x7008565; Thu, 23 Jan 2020 06:18:08 GMT (envelope-from mckusick@FreeBSD.org) Received: (from mckusick@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 00N6I80e008564; Thu, 23 Jan 2020 06:18:08 GMT (envelope-from mckusick@FreeBSD.org) Message-Id: <202001230618.00N6I80e008564@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: mckusick set sender to mckusick@FreeBSD.org using -f From: Kirk McKusick Date: Thu, 23 Jan 2020 06:18:08 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r357032 - stable/11/sys/kern X-SVN-Group: stable-11 X-SVN-Commit-Author: mckusick X-SVN-Commit-Paths: stable/11/sys/kern X-SVN-Commit-Revision: 357032 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 23 Jan 2020 06:18:08 -0000 Author: mckusick Date: Thu Jan 23 06:18:08 2020 New Revision: 357032 URL: https://svnweb.freebsd.org/changeset/base/357032 Log: MFC of 356763 Remove call to VFS_SYNC() to avoid unmount livelock Modified: stable/11/sys/kern/vfs_mount.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/kern/vfs_mount.c ============================================================================== --- stable/11/sys/kern/vfs_mount.c Thu Jan 23 06:11:25 2020 (r357031) +++ stable/11/sys/kern/vfs_mount.c Thu Jan 23 06:18:08 2020 (r357032) @@ -1435,9 +1435,7 @@ dounmount(struct mount *mp, int flags, struct thread * } vput(fsrootvp); } - if ((mp->mnt_flag & MNT_RDONLY) != 0 || (flags & MNT_FORCE) != 0 || - (error = VFS_SYNC(mp, MNT_WAIT)) == 0) - error = VFS_UNMOUNT(mp, flags); + error = VFS_UNMOUNT(mp, flags); vn_finished_write(mp); /* * If we failed to flush the dirty blocks for this mount point,