From owner-svn-src-stable-9@FreeBSD.ORG Wed Jan 1 22:49:38 2014 Return-Path: Delivered-To: svn-src-stable-9@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 2B4E46E6; Wed, 1 Jan 2014 22:49:38 +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)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 0C7641CB2; Wed, 1 Jan 2014 22:49:38 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.7/8.14.7) with ESMTP id s01Mnbs8071664; Wed, 1 Jan 2014 22:49:37 GMT (envelope-from rmacklem@svn.freebsd.org) Received: (from rmacklem@localhost) by svn.freebsd.org (8.14.7/8.14.7/Submit) id s01MnbCI071661; Wed, 1 Jan 2014 22:49:37 GMT (envelope-from rmacklem@svn.freebsd.org) Message-Id: <201401012249.s01MnbCI071661@svn.freebsd.org> From: Rick Macklem Date: Wed, 1 Jan 2014 22:49:37 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r260174 - in stable/9/sys/fs: nfs nfsserver X-SVN-Group: stable-9 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable-9@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: SVN commit messages for only the 9-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 01 Jan 2014 22:49:38 -0000 Author: rmacklem Date: Wed Jan 1 22:49:37 2014 New Revision: 260174 URL: http://svnweb.freebsd.org/changeset/base/260174 Log: MFC: r259854 The NFSv4 server would call VOP_SETATTR() with a shared locked vnode when a Getattr for a file is done by a client other than the one that holds the file's delegation. This would only happen when delegations are enabled and the problem is fixed by this patch. Modified: stable/9/sys/fs/nfs/nfs_var.h stable/9/sys/fs/nfsserver/nfs_nfsdport.c stable/9/sys/fs/nfsserver/nfs_nfsdstate.c Directory Properties: stable/9/sys/ (props changed) stable/9/sys/fs/ (props changed) Modified: stable/9/sys/fs/nfs/nfs_var.h ============================================================================== --- stable/9/sys/fs/nfs/nfs_var.h Wed Jan 1 22:43:16 2014 (r260173) +++ stable/9/sys/fs/nfs/nfs_var.h Wed Jan 1 22:49:37 2014 (r260174) @@ -561,7 +561,7 @@ void nfsvno_open(struct nfsrv_descript * nfsv4stateid_t *, struct nfsstate *, int *, struct nfsvattr *, int32_t *, int, NFSACL_T *, nfsattrbit_t *, struct ucred *, NFSPROC_T *, struct nfsexstuff *, vnode_t *); -void nfsvno_updfilerev(vnode_t, struct nfsvattr *, struct ucred *, +int nfsvno_updfilerev(vnode_t, struct nfsvattr *, struct ucred *, NFSPROC_T *); int nfsvno_fillattr(struct nfsrv_descript *, struct mount *, vnode_t, struct nfsvattr *, fhandle_t *, int, nfsattrbit_t *, Modified: stable/9/sys/fs/nfsserver/nfs_nfsdport.c ============================================================================== --- stable/9/sys/fs/nfsserver/nfs_nfsdport.c Wed Jan 1 22:43:16 2014 (r260173) +++ stable/9/sys/fs/nfsserver/nfs_nfsdport.c Wed Jan 1 22:49:37 2014 (r260174) @@ -1470,8 +1470,9 @@ nfsvno_open(struct nfsrv_descript *nd, s * Updates the file rev and sets the mtime and ctime * to the current clock time, returning the va_filerev and va_Xtime * values. + * Return ESTALE to indicate the vnode is VI_DOOMED. */ -void +int nfsvno_updfilerev(struct vnode *vp, struct nfsvattr *nvap, struct ucred *cred, struct thread *p) { @@ -1479,8 +1480,14 @@ nfsvno_updfilerev(struct vnode *vp, stru VATTR_NULL(&va); vfs_timestamp(&va.va_mtime); + if (NFSVOPISLOCKED(vp) != LK_EXCLUSIVE) { + NFSVOPLOCK(vp, LK_UPGRADE | LK_RETRY); + if ((vp->v_iflag & VI_DOOMED) != 0) + return (ESTALE); + } (void) VOP_SETATTR(vp, &va, cred); (void) nfsvno_getattr(vp, nvap, cred, p, 1); + return (0); } /* Modified: stable/9/sys/fs/nfsserver/nfs_nfsdstate.c ============================================================================== --- stable/9/sys/fs/nfsserver/nfs_nfsdstate.c Wed Jan 1 22:43:16 2014 (r260173) +++ stable/9/sys/fs/nfsserver/nfs_nfsdstate.c Wed Jan 1 22:49:37 2014 (r260174) @@ -4852,15 +4852,15 @@ nfsrv_checkgetattr(struct nfsrv_descript nva.na_filerev > delegfilerev) || (NFSVNO_ISSETSIZE(&nva) && nva.na_size != nvap->na_size)) { - nfsvno_updfilerev(vp, nvap, cred, p); + error = nfsvno_updfilerev(vp, nvap, cred, p); if (NFSVNO_ISSETSIZE(&nva)) nvap->na_size = nva.na_size; } - } + } else + error = 0; /* Ignore callback errors for now. */ } else { NFSUNLOCKSTATE(); } - error = 0; out: NFSEXITCODE2(error, nd);