From patchwork Fri Oct 21 13:05:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 13014776 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 80041C4332F for ; Fri, 21 Oct 2022 13:07:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230227AbiJUNG7 (ORCPT ); Fri, 21 Oct 2022 09:06:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45152 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230124AbiJUNGX (ORCPT ); Fri, 21 Oct 2022 09:06:23 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5784F26B4BE; Fri, 21 Oct 2022 06:06:18 -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 dfw.source.kernel.org (Postfix) with ESMTPS id 7DE8D61E9D; Fri, 21 Oct 2022 13:06:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 044E4C433D6; Fri, 21 Oct 2022 13:06:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1666357576; bh=XTCQklTYch506fsKvxW5ImA5FCnKyk22+LeCOXARq2w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sOHJ0lyDnodI/pMdW/riO8Mlc7c3TXOUu3cVbHVd0S3sDMkrwQL3useK0XlgQZlSz O0wVWgujInzFgk7f2U+CS93aXxC9Ut4leanCI4L9eyimSUvz/BOrPpxbJ34njq1PJq +jjzkL/YehSxS2O/hgAG0+e+x0uPY/EPCwAme6V1t8tG/L6LtoREMaRXtw59nOYDnz xB6wzbZ62nsMC04zkIlU2EnGtMUQWguL7aBZt8sxvD+L4IfT93F8RkTd8OrpXEEZcY o2e4qO1gm2ecMPUFdp7NQVspCgHEl+eypbf9GaKDBTr6G7zmrTR73aLKp7mTazsJ7R XQH/Jr8JywX0A== From: Jeff Layton To: tytso@mit.edu, adilger.kernel@dilger.ca, djwong@kernel.org, david@fromorbit.com, trondmy@hammerspace.com, neilb@suse.de, viro@zeniv.linux.org.uk, zohar@linux.ibm.com, xiubli@redhat.com, chuck.lever@oracle.com, lczerner@redhat.com, jack@suse.cz, bfields@fieldses.org, brauner@kernel.org, fweimer@redhat.com Cc: linux-btrfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, ceph-devel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-nfs@vger.kernel.org, linux-xfs@vger.kernel.org Subject: [PATCH v8 5/8] ceph: report the inode version in getattr if requested Date: Fri, 21 Oct 2022 09:05:59 -0400 Message-Id: <20221021130602.99099-6-jlayton@kernel.org> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20221021130602.99099-1-jlayton@kernel.org> References: <20221021130602.99099-1-jlayton@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org When getattr requests the STX_CHANGE_COOKIE, request the full gamut of caps (similarly to how ctime is handled). When the change attribute seems to be valid, return it in the change_cookie field and set the flag in the reply mask. Also, unconditionally enable STATX_ATTR_CHANGE_MONOTONIC. Reviewed-by: Xiubo Li Signed-off-by: Jeff Layton --- fs/ceph/inode.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index 4af5e55abc15..0e2e6ca399a9 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -2417,10 +2417,10 @@ static int statx_to_caps(u32 want, umode_t mode) { int mask = 0; - if (want & (STATX_MODE|STATX_UID|STATX_GID|STATX_CTIME|STATX_BTIME)) + if (want & (STATX_MODE|STATX_UID|STATX_GID|STATX_CTIME|STATX_BTIME|STATX_CHANGE_COOKIE)) mask |= CEPH_CAP_AUTH_SHARED; - if (want & (STATX_NLINK|STATX_CTIME)) { + if (want & (STATX_NLINK|STATX_CTIME|STATX_CHANGE_COOKIE)) { /* * The link count for directories depends on inode->i_subdirs, * and that is only updated when Fs caps are held. @@ -2431,11 +2431,10 @@ static int statx_to_caps(u32 want, umode_t mode) mask |= CEPH_CAP_LINK_SHARED; } - if (want & (STATX_ATIME|STATX_MTIME|STATX_CTIME|STATX_SIZE| - STATX_BLOCKS)) + if (want & (STATX_ATIME|STATX_MTIME|STATX_CTIME|STATX_SIZE|STATX_BLOCKS|STATX_CHANGE_COOKIE)) mask |= CEPH_CAP_FILE_SHARED; - if (want & (STATX_CTIME)) + if (want & (STATX_CTIME|STATX_CHANGE_COOKIE)) mask |= CEPH_CAP_XATTR_SHARED; return mask; @@ -2478,6 +2477,11 @@ int ceph_getattr(struct user_namespace *mnt_userns, const struct path *path, valid_mask |= STATX_BTIME; } + if (request_mask & STATX_CHANGE_COOKIE) { + stat->change_cookie = inode_peek_iversion_raw(inode); + valid_mask |= STATX_CHANGE_COOKIE; + } + if (ceph_snap(inode) == CEPH_NOSNAP) stat->dev = sb->s_dev; else @@ -2519,6 +2523,8 @@ int ceph_getattr(struct user_namespace *mnt_userns, const struct path *path, stat->nlink = 1 + 1 + ci->i_subdirs; } + stat->attributes_mask |= STATX_ATTR_CHANGE_MONOTONIC; + stat->attributes |= STATX_ATTR_CHANGE_MONOTONIC; stat->result_mask = request_mask & valid_mask; return err; }