From patchwork Tue Mar 22 14:12:44 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 12788421 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 25CAAC4167B for ; Tue, 22 Mar 2022 14:13:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236632AbiCVOPP (ORCPT ); Tue, 22 Mar 2022 10:15:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50622 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236464AbiCVOPI (ORCPT ); Tue, 22 Mar 2022 10:15:08 -0400 Received: from sin.source.kernel.org (sin.source.kernel.org [145.40.73.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 79D0633E17; Tue, 22 Mar 2022 07:13:40 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id E0843CE1E18; Tue, 22 Mar 2022 14:13:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 87F56C340EC; Tue, 22 Mar 2022 14:13:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1647958417; bh=QSQJwXnQ26aopltanKUAuklulNeW880EC3N09Fc3UKo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gEPCIZVYnuuQDdjpMt1OFyWdbDEs5y3GQ0T0M/0ugQTBGi9emliQJKaXrOyEQ9VFi CS72iLeIsE7NP7rkqB9TcHfrpnzsN+Q2hZcOodmBYSni0rYLDdSPId4Dkb/1OUJSgk 2P2GIrRLfPmA4vhBBW/pbcnBiXLSfY3I/Qzzg0Mdj+3aZstBnF/ohzmA5akqhpJrav WSsvlKG83CIPTNV0ImpLtBEK8lwewHg7sSQ8GyiLufCIRBZJN9k23wVyb09mBqRpqA 81Zn0zakoqRbJPA2w7id6BtriFL0nISs8r4l9atT2NaMnm6HDE4aE+Kva86ZPVVuVa 0AV71nbN9DpJA== From: Jeff Layton To: idryomov@gmail.com, xiubli@redhat.com Cc: ceph-devel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-fscrypt@vger.kernel.org, linux-kernel@vger.kernel.org, lhenriques@suse.de Subject: [RFC PATCH v11 19/51] ceph: make d_revalidate call fscrypt revalidator for encrypted dentries Date: Tue, 22 Mar 2022 10:12:44 -0400 Message-Id: <20220322141316.41325-20-jlayton@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220322141316.41325-1-jlayton@kernel.org> References: <20220322141316.41325-1-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 897f8618151b..caf2547c3fe1 100644 --- a/fs/ceph/dir.c +++ b/fs/ceph/dir.c @@ -1709,6 +1709,10 @@ 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); @@ -1721,8 +1725,8 @@ 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;