From patchwork Thu May 18 11:47:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 13246670 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 B1403C7EE2E for ; Thu, 18 May 2023 11:48:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231544AbjERLsR (ORCPT ); Thu, 18 May 2023 07:48:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41854 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231345AbjERLr4 (ORCPT ); Thu, 18 May 2023 07:47:56 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 96E98B9; Thu, 18 May 2023 04:47:55 -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 2DC6A64ED2; Thu, 18 May 2023 11:47:55 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3F80EC433AA; Thu, 18 May 2023 11:47:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1684410474; bh=+ZM+liB0nOC40xQZQZ86xt6fi25JWXDh676GI1IVOtU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NQnkqGwCCO7vGJ/Yl4qfYfKxifiKbMPWX2nYexu/UCvc1oIUUfQVuW6udPdzJ1m4k rWMY0fCaeAJOQI+qqhPBhxIV7gfUu9Ylg2eSEobnGKZW88ySXBwsucmW1y8Y+nFlfR 6tVEWNilLHOCnTpp/KdfqHoVSXvdllBWDnVe9kNrF2FvgYteYmwPND+Z+1pY9ZmQ2e iyCImFsXgFxeUDph74sSt9m0qYQnTUhLuWqAY/TFIwQnnTp/OT8BBkqPnjwa96LF+q MqMJYD6fBTddkIFRXAdvcgr6RmUENlMzwsFZYCbPjxDR9haBrGDkiCc3Hs4jGSiG4s 1NqFQlisf4yPQ== From: Jeff Layton To: Alexander Viro , Christian Brauner , "Darrick J. Wong" , Hugh Dickins , Andrew Morton , Dave Chinner , Chuck Lever Cc: Jan Kara , Amir Goldstein , David Howells , Neil Brown , Matthew Wilcox , Andreas Dilger , Theodore T'so , Chris Mason , Josef Bacik , David Sterba , Namjae Jeon , Steve French , Sergey Senozhatsky , Tom Talpey , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-mm@kvack.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org Subject: [PATCH v4 3/9] overlayfs: allow it to handle multigrain timestamps Date: Thu, 18 May 2023 07:47:36 -0400 Message-Id: <20230518114742.128950-4-jlayton@kernel.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230518114742.128950-1-jlayton@kernel.org> References: <20230518114742.128950-1-jlayton@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Ensure that we strip off the I_CTIME_QUERIED bit when copying up. Signed-off-by: Jeff Layton --- fs/overlayfs/file.c | 7 +++++-- fs/overlayfs/util.c | 2 +- 2 files changed, 6 insertions(+), 3 deletions(-) diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c index 7c04f033aadd..cad715df8c4e 100644 --- a/fs/overlayfs/file.c +++ b/fs/overlayfs/file.c @@ -222,6 +222,7 @@ static loff_t ovl_llseek(struct file *file, loff_t offset, int whence) static void ovl_file_accessed(struct file *file) { struct inode *inode, *upperinode; + struct timespec64 ctime, uctime; if (file->f_flags & O_NOATIME) return; @@ -232,10 +233,12 @@ static void ovl_file_accessed(struct file *file) if (!upperinode) return; + ctime = ctime_peek(inode); + uctime = ctime_peek(upperinode); if ((!timespec64_equal(&inode->i_mtime, &upperinode->i_mtime) || - !timespec64_equal(&inode->i_ctime, &upperinode->i_ctime))) { + !timespec64_equal(&ctime, &uctime))) { inode->i_mtime = upperinode->i_mtime; - inode->i_ctime = upperinode->i_ctime; + inode->i_ctime = uctime; } touch_atime(&file->f_path); diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c index 923d66d131c1..f4f9d7e189ef 100644 --- a/fs/overlayfs/util.c +++ b/fs/overlayfs/util.c @@ -1117,6 +1117,6 @@ void ovl_copyattr(struct inode *inode) inode->i_mode = realinode->i_mode; inode->i_atime = realinode->i_atime; inode->i_mtime = realinode->i_mtime; - inode->i_ctime = realinode->i_ctime; + inode->i_ctime = ctime_peek(realinode); i_size_write(inode, i_size_read(realinode)); }