From owner-svn-src-stable@FreeBSD.ORG Mon Jan 26 11:37:18 2015 Return-Path: Delivered-To: svn-src-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 1FEF67BC; Mon, 26 Jan 2015 11:37:18 +0000 (UTC) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 0B8093F0; Mon, 26 Jan 2015 11:37:18 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id t0QBbH9s095932; Mon, 26 Jan 2015 11:37:17 GMT (envelope-from kib@FreeBSD.org) Received: (from kib@localhost) by svn.freebsd.org (8.14.9/8.14.9/Submit) id t0QBbHtc095930; Mon, 26 Jan 2015 11:37:17 GMT (envelope-from kib@FreeBSD.org) Message-Id: <201501261137.t0QBbHtc095930@svn.freebsd.org> X-Authentication-Warning: svn.freebsd.org: kib set sender to kib@FreeBSD.org using -f From: Konstantin Belousov Date: Mon, 26 Jan 2015 11:37:17 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r277746 - stable/10/sys/fs/devfs X-SVN-Group: stable-10 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: 2.1.18-1 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: Mon, 26 Jan 2015 11:37:18 -0000 Author: kib Date: Mon Jan 26 11:37:16 2015 New Revision: 277746 URL: https://svnweb.freebsd.org/changeset/base/277746 Log: MFC r277390: Ignore devfs directory entries for devices being destroyed. Modified: stable/10/sys/fs/devfs/devfs_devs.c stable/10/sys/fs/devfs/devfs_vnops.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/fs/devfs/devfs_devs.c ============================================================================== --- stable/10/sys/fs/devfs/devfs_devs.c Mon Jan 26 10:31:17 2015 (r277745) +++ stable/10/sys/fs/devfs/devfs_devs.c Mon Jan 26 11:37:16 2015 (r277746) @@ -186,6 +186,16 @@ devfs_find(struct devfs_dirent *dd, cons continue; if (type != 0 && type != de->de_dirent->d_type) continue; + + /* + * The race with finding non-active name is not + * completely closed by the check, but it is similar + * to the devfs_allocv() in making it unlikely enough. + */ + if (de->de_dirent->d_type == DT_CHR && + (de->de_cdp->cdp_flags & CDP_ACTIVE) == 0) + continue; + if (bcmp(name, de->de_dirent->d_name, namelen) != 0) continue; break; Modified: stable/10/sys/fs/devfs/devfs_vnops.c ============================================================================== --- stable/10/sys/fs/devfs/devfs_vnops.c Mon Jan 26 10:31:17 2015 (r277745) +++ stable/10/sys/fs/devfs/devfs_vnops.c Mon Jan 26 11:37:16 2015 (r277746) @@ -1023,6 +1023,9 @@ devfs_mknod(struct vop_mknod_args *ap) TAILQ_FOREACH(de, &dd->de_dlist, de_list) { if (cnp->cn_namelen != de->de_dirent->d_namlen) continue; + if (de->de_dirent->d_type == DT_CHR && + (de->de_cdp->cdp_flags & CDP_ACTIVE) == 0) + continue; if (bcmp(cnp->cn_nameptr, de->de_dirent->d_name, de->de_dirent->d_namlen) != 0) continue;