From patchwork Thu Aug 26 16:20:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 12460133 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D8CFBC43214 for ; Thu, 26 Aug 2021 16:20:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BDD9161178 for ; Thu, 26 Aug 2021 16:20:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243215AbhHZQVb (ORCPT ); Thu, 26 Aug 2021 12:21:31 -0400 Received: from mail.kernel.org ([198.145.29.99]:44732 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243150AbhHZQVU (ORCPT ); Thu, 26 Aug 2021 12:21:20 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id AC63961157; Thu, 26 Aug 2021 16:20:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1629994833; bh=bxPw9/IjvBWN735Tv0FZOQZfWM7OnabC7ZLfvIh0/jw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IAQhr/zxlKAYMdCpfN9T+Hj+BWXIagKruSwiEMdwnWEbKXgD+42XqdrfISzcnGOiI KrIK/UnJ7eCenQkwh/YVwm2ZpE+26QWknxZZ7OB680voFIvvttpKlJeIH7SKByXuyq V1IRuv1C+d5/j7XFMGlq/UslzHU+ID1dc29pjB6/xTjAFnunEjL8FZ5WB8ahHJ4LTL AHIVcx39pPrp7hn4P5EPoMgjJDifrOcsExqEiU2oiRlzGpx2V1UPbelJcEexLzbCRm ZMU9owkvjVFohyOucuhnp2KrUUFF8nDBt4CMdsr2VCZBqttkcs4sEhqdGgLeEXQ72T siny2g3fCgFeA== From: Jeff Layton To: ceph-devel@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org, linux-fscrypt@vger.kernel.org, dhowells@redhat.com, xiubli@redhat.com, lhenriques@suse.de, khiremat@redhat.com, ebiggers@kernel.org Subject: [RFC PATCH v8 18/24] ceph: make d_revalidate call fscrypt revalidator for encrypted dentries Date: Thu, 26 Aug 2021 12:20:08 -0400 Message-Id: <20210826162014.73464-19-jlayton@kernel.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210826162014.73464-1-jlayton@kernel.org> References: <20210826162014.73464-1-jlayton@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fscrypt@vger.kernel.org If we have a dentry which represents a no-key name, then we need to test whether the parent directory's encryption key has since been added. Do that before we test anything else about the dentry. Signed-off-by: Jeff Layton --- fs/ceph/dir.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c index 4fa776d8fa53..7977484d0317 100644 --- a/fs/ceph/dir.c +++ b/fs/ceph/dir.c @@ -1700,6 +1700,10 @@ static int ceph_d_revalidate(struct dentry *dentry, unsigned int flags) struct inode *dir, *inode; struct ceph_mds_client *mdsc; + valid = fscrypt_d_revalidate(dentry, flags); + if (valid <= 0) + return valid; + if (flags & LOOKUP_RCU) { parent = READ_ONCE(dentry->d_parent); dir = d_inode_rcu(parent); @@ -1712,8 +1716,8 @@ static int ceph_d_revalidate(struct dentry *dentry, unsigned int flags) inode = d_inode(dentry); } - dout("d_revalidate %p '%pd' inode %p offset 0x%llx\n", dentry, - dentry, inode, ceph_dentry(dentry)->offset); + dout("d_revalidate %p '%pd' inode %p offset 0x%llx nokey %d\n", dentry, + dentry, inode, ceph_dentry(dentry)->offset, !!(dentry->d_flags & DCACHE_NOKEY_NAME)); mdsc = ceph_sb_to_client(dir->i_sb)->mdsc;