From owner-svn-src-stable-8@FreeBSD.ORG Mon Mar 19 11:27:55 2012 Return-Path: Delivered-To: svn-src-stable-8@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 43304106566C; Mon, 19 Mar 2012 11:27:55 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c]) by mx1.freebsd.org (Postfix) with ESMTP id 13BBF8FC16; Mon, 19 Mar 2012 11:27:55 +0000 (UTC) Received: from svn.freebsd.org (localhost [127.0.0.1]) by svn.freebsd.org (8.14.4/8.14.4) with ESMTP id q2JBRsOf066349; Mon, 19 Mar 2012 11:27:54 GMT (envelope-from kib@svn.freebsd.org) Received: (from kib@localhost) by svn.freebsd.org (8.14.4/8.14.4/Submit) id q2JBRsDP066347; Mon, 19 Mar 2012 11:27:54 GMT (envelope-from kib@svn.freebsd.org) Message-Id: <201203191127.q2JBRsDP066347@svn.freebsd.org> From: Konstantin Belousov Date: Mon, 19 Mar 2012 11:27:54 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org X-SVN-Group: stable-8 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: Subject: svn commit: r233171 - stable/8/sys/fs/pseudofs X-BeenThere: svn-src-stable-8@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SVN commit messages for only the 8-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Mar 2012 11:27:55 -0000 Author: kib Date: Mon Mar 19 11:27:54 2012 New Revision: 233171 URL: http://svn.freebsd.org/changeset/base/233171 Log: MFC r232541: Apply inlined vn_vget_ino() algorithm for ".." lookup in pseudofs. Modified: stable/8/sys/fs/pseudofs/pseudofs_vnops.c Directory Properties: stable/8/sys/ (props changed) Modified: stable/8/sys/fs/pseudofs/pseudofs_vnops.c ============================================================================== --- stable/8/sys/fs/pseudofs/pseudofs_vnops.c Mon Mar 19 10:06:22 2012 (r233170) +++ stable/8/sys/fs/pseudofs/pseudofs_vnops.c Mon Mar 19 11:27:54 2012 (r233171) @@ -433,6 +433,7 @@ pfs_lookup(struct vop_cachedlookup_args struct pfs_vdata *pvd = vn->v_data; struct pfs_node *pd = pvd->pvd_pn; struct pfs_node *pn, *pdn = NULL; + struct mount *mp; pid_t pid = pvd->pvd_pid; char *pname; int error, i, namelen, visible; @@ -475,10 +476,26 @@ pfs_lookup(struct vop_cachedlookup_args PFS_RETURN (0); } + mp = vn->v_mount; + /* parent */ if (cnp->cn_flags & ISDOTDOT) { if (pd->pn_type == pfstype_root) PFS_RETURN (EIO); + error = vfs_busy(mp, MBF_NOWAIT); + if (error != 0) { + vfs_ref(mp); + VOP_UNLOCK(vn, 0); + error = vfs_busy(mp, 0); + vn_lock(vn, LK_EXCLUSIVE | LK_RETRY); + vfs_rel(mp); + if (error != 0) + PFS_RETURN(ENOENT); + if (vn->v_iflag & VI_DOOMED) { + vfs_unbusy(mp); + PFS_RETURN(ENOENT); + } + } VOP_UNLOCK(vn, 0); KASSERT(pd->pn_parent != NULL, ("%s(): non-root directory has no parent", __func__)); @@ -536,18 +553,28 @@ pfs_lookup(struct vop_cachedlookup_args goto failed; } - error = pfs_vncache_alloc(vn->v_mount, vpp, pn, pid); + error = pfs_vncache_alloc(mp, vpp, pn, pid); if (error) goto failed; - if (cnp->cn_flags & ISDOTDOT) - vn_lock(vn, LK_EXCLUSIVE|LK_RETRY); + if (cnp->cn_flags & ISDOTDOT) { + vfs_unbusy(mp); + vn_lock(vn, LK_EXCLUSIVE | LK_RETRY); + if (vn->v_iflag & VI_DOOMED) { + vput(*vpp); + *vpp = NULL; + PFS_RETURN(ENOENT); + } + } if (cnp->cn_flags & MAKEENTRY && !(vn->v_iflag & VI_DOOMED)) cache_enter(vn, *vpp, cnp); PFS_RETURN (0); failed: - if (cnp->cn_flags & ISDOTDOT) - vn_lock(vn, LK_EXCLUSIVE|LK_RETRY); + if (cnp->cn_flags & ISDOTDOT) { + vfs_unbusy(mp); + vn_lock(vn, LK_EXCLUSIVE | LK_RETRY); + *vpp = NULL; + } PFS_RETURN(error); }