From patchwork Wed Nov 20 15:27:37 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Scott Mayhew X-Patchwork-Id: 11254191 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id DDEE1930 for ; Wed, 20 Nov 2019 15:30:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B351A206B6 for ; Wed, 20 Nov 2019 15:30:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="ilkHLL9O" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729811AbfKTPaC (ORCPT ); Wed, 20 Nov 2019 10:30:02 -0500 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:44921 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1730220AbfKTP16 (ORCPT ); Wed, 20 Nov 2019 10:27:58 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1574263677; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=VfTwEHC91vLf788MahabIL/JjXF4xSOgcRFDg7nd7E0=; b=ilkHLL9OR5Zu/9W6dx9MNggTLylxA0ANbyDexiKn4nGnfAMrV6jQm+qaxW9gQLHcJgTaz7 6nfjY8PDTUMBao1hhDK+ljUwahpw3tsCqNdBfEPl+5ORBpfGYlWCahIpCVkuvu/QuzmIn6 UCx5/rPcUWeRHU2HsqHGvQ4otFWk6yw= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-89-ZBvrTDm_MMy3MUvfRNLqDw-1; Wed, 20 Nov 2019 10:27:53 -0500 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 405FD18B5F75; Wed, 20 Nov 2019 15:27:52 +0000 (UTC) Received: from coeurl.usersys.redhat.com (ovpn-123-90.rdu2.redhat.com [10.10.123.90]) by smtp.corp.redhat.com (Postfix) with ESMTP id 184CF1037ADA; Wed, 20 Nov 2019 15:27:52 +0000 (UTC) Received: by coeurl.usersys.redhat.com (Postfix, from userid 1000) id 6B2F1209BA; Wed, 20 Nov 2019 10:27:50 -0500 (EST) From: Scott Mayhew To: anna.schumaker@netapp.com, trond.myklebust@hammerspace.com Cc: dhowells@redhat.com, viro@zeniv.linux.org.uk, linux-nfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 14/27] nfs_clone_sb_security(): simplify the check for server bogosity Date: Wed, 20 Nov 2019 10:27:37 -0500 Message-Id: <20191120152750.6880-15-smayhew@redhat.com> In-Reply-To: <20191120152750.6880-1-smayhew@redhat.com> References: <20191120152750.6880-1-smayhew@redhat.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-MC-Unique: ZBvrTDm_MMy3MUvfRNLqDw-1 X-Mimecast-Spam-Score: 0 Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org From: Al Viro We used to check ->i_op for being nfs_dir_inode_operations. With separate inode_operations for v3 and v4 that became bogus, but rather than going for protocol-dependent comparison we could've just checked ->i_fop instead; _that_ is the same for all protocol versions. Reviewed-by: David Howells Signed-off-by: Al Viro --- fs/nfs/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/nfs/super.c b/fs/nfs/super.c index d8b53fcaa60e..c5fefd9bf6ae 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -2578,7 +2578,7 @@ int nfs_clone_sb_security(struct super_block *s, struct dentry *mntroot, unsigned long kflags = 0, kflags_out = 0; /* clone any lsm security options from the parent to the new sb */ - if (d_inode(mntroot)->i_op != NFS_SB(s)->nfs_client->rpc_ops->dir_inode_ops) + if (d_inode(mntroot)->i_fop != &nfs_dir_operations) return -ESTALE; if (NFS_SB(s)->caps & NFS_CAP_SECURITY_LABEL)