From owner-svn-src-stable-11@freebsd.org Wed Dec 14 16:08:30 2016 Return-Path: Delivered-To: svn-src-stable-11@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 6DD5CC667C3; Wed, 14 Dec 2016 16:08:30 +0000 (UTC) (envelope-from avg@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 mx1.freebsd.org (Postfix) with ESMTPS id 1CE101AD2; Wed, 14 Dec 2016 16:08:30 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id uBEG8Tu6090759; Wed, 14 Dec 2016 16:08:29 GMT (envelope-from avg@FreeBSD.org) Received: (from avg@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id uBEG8TrT090757; Wed, 14 Dec 2016 16:08:29 GMT (envelope-from avg@FreeBSD.org) Message-Id: <201612141608.uBEG8TrT090757@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: avg set sender to avg@FreeBSD.org using -f From: Andriy Gapon Date: Wed, 14 Dec 2016 16:08:29 +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: r310066 - stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs X-SVN-Group: stable-11 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable-11@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SVN commit messages for only the 11-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 14 Dec 2016 16:08:30 -0000 Author: avg Date: Wed Dec 14 16:08:28 2016 New Revision: 310066 URL: https://svnweb.freebsd.org/changeset/base/310066 Log: MFC r308887,309090: fix unsafe modification of zfs_vnodeops when DIAGNOSTIC is enabled Modified: stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_znode.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c ============================================================================== --- stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c Wed Dec 14 16:05:48 2016 (r310065) +++ stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c Wed Dec 14 16:08:28 2016 (r310066) @@ -5976,26 +5976,17 @@ zfs_lock(ap) int line; } */ *ap; { - zfsvfs_t *zfsvfs; - znode_t *zp; vnode_t *vp; - int flags; + znode_t *zp; int err; - vp = ap->a_vp; - flags = ap->a_flags; - if ((flags & LK_INTERLOCK) == 0 && (flags & LK_NOWAIT) == 0 && - (vp->v_iflag & VI_DOOMED) == 0 && (zp = vp->v_data) != NULL && - (zp->z_pflags & ZFS_XATTR) == 0) { - zfsvfs = zp->z_zfsvfs; - VERIFY(!RRM_LOCK_HELD(&zfsvfs->z_teardown_lock)); - } err = vop_stdlock(ap); - if ((flags & LK_INTERLOCK) != 0 && (flags & LK_NOWAIT) == 0 && - (vp->v_iflag & VI_DOOMED) == 0 && (zp = vp->v_data) != NULL && - (zp->z_pflags & ZFS_XATTR) == 0) { - zfsvfs = zp->z_zfsvfs; - VERIFY(!RRM_LOCK_HELD(&zfsvfs->z_teardown_lock)); + if (err == 0 && (ap->a_flags & LK_NOWAIT) == 0) { + vp = ap->a_vp; + zp = vp->v_data; + if (vp->v_mount != NULL && (vp->v_iflag & VI_DOOMED) == 0 && + zp != NULL && (zp->z_pflags & ZFS_XATTR) == 0) + VERIFY(!RRM_LOCK_HELD(&zp->z_zfsvfs->z_teardown_lock)); } return (err); } Modified: stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_znode.c ============================================================================== --- stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_znode.c Wed Dec 14 16:05:48 2016 (r310065) +++ stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_znode.c Wed Dec 14 16:08:28 2016 (r310066) @@ -727,14 +727,7 @@ zfs_znode_alloc(zfsvfs_t *zfsvfs, dmu_bu /* * Acquire vnode lock before making it available to the world. */ -#ifdef DIAGNOSTIC - vop_lock1_t *orig_lock = vp->v_op->vop_lock1; - vp->v_op->vop_lock1 = vop_stdlock; vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); - vp->v_op->vop_lock1 = orig_lock; -#else - vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); -#endif VN_LOCK_AREC(vp); if (vp->v_type != VFIFO) VN_LOCK_ASHARE(vp);