From mboxrd@z Thu Jan 1 00:00:00 1970 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=-10.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 3BF03C433E1 for ; Wed, 24 Jun 2020 10:21:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D9D6D20706 for ; Wed, 24 Jun 2020 10:21:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mykernel.net header.i=cgxu519@mykernel.net header.b="Jrv7hKGp" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390281AbgFXKUt (ORCPT ); Wed, 24 Jun 2020 06:20:49 -0400 Received: from sender2-op-o12.zoho.com.cn ([163.53.93.243]:17121 "EHLO sender2-op-o12.zoho.com.cn" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390119AbgFXKUj (ORCPT ); Wed, 24 Jun 2020 06:20:39 -0400 ARC-Seal: i=1; a=rsa-sha256; t=1592994024; cv=none; d=zoho.com.cn; s=zohoarc; b=IqN2qZZFWCWXx7ZbgnUguHUEiyf+iZSXuhycRXu3EUpBcbpgC60lopEp+F7y4l3xGju6H8csVIEfL4s4TkUPa7KtmlUzysTLSliYT1Tqcy0JqMe16UFsTq08pJ48ZAb65KT4lhrz+HBvR+qD5DWneim10buRhG8g2zWktIX81rQ= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com.cn; s=zohoarc; t=1592994024; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:MIME-Version:Message-ID:Subject:To; bh=PKCfyGEEjSlRJRyjrJZ+V4F7+BsUscDEqIXVbuYd0hw=; b=UEA4NS0hsekmv3TEmyLFaLoh7zU+E71TMq3BepASP80qwX9dBv0d1sn2oX7NvvB05063IKvRZEkTSAu2cv7P+Trh19ZKGESidY+n2DpxJbyThqPsQadLdeRP6Y80E1Je+tqlA6RO+eM2ahqnTCsEBjtyxGR7ewTZJbcjaJDp1nY= ARC-Authentication-Results: i=1; mx.zoho.com.cn; dkim=pass header.i=mykernel.net; spf=pass smtp.mailfrom=cgxu519@mykernel.net; dmarc=pass header.from= header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1592994024; s=zohomail; d=mykernel.net; i=cgxu519@mykernel.net; h=From:To:Cc:Message-ID:Subject:Date:MIME-Version:Content-Transfer-Encoding:Content-Type; bh=PKCfyGEEjSlRJRyjrJZ+V4F7+BsUscDEqIXVbuYd0hw=; b=Jrv7hKGp4F8ZA9hoYhj9mCT9MV7lwwvv9uZ5NFCqodRcNojvys170OcWkspzYEYO 4QAWvE9uXorpiq77bUrRaFJ3kvnfieKIyzjCWnpvrtCtOQpc7BJ3NK5u9v6vnKXrk5E fwg2C2H1zNyFXihmgWNNnhTM4feyUnqtGHlc376o= Received: from localhost.localdomain (218.18.229.179 [218.18.229.179]) by mx.zoho.com.cn with SMTPS id 1592994021027332.3870125354415; Wed, 24 Jun 2020 18:20:21 +0800 (CST) From: Chengguang Xu To: miklos@szeredi.hu Cc: linux-unionfs@vger.kernel.org, Chengguang Xu Message-ID: <20200624102011.4861-1-cgxu519@mykernel.net> Subject: [PATCH] ovl: fix incorrect extent info in metacopy case Date: Wed, 24 Jun 2020 18:20:11 +0800 X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoCNMailClient: External Content-Type: text/plain; charset=utf8 Sender: linux-unionfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-unionfs@vger.kernel.org In metacopy case, we should use ovl_inode_realdata() instead of ovl_inode_real() to get real inode which has data, so that we can get correct information of extentes in ->fiemap operation. Signed-off-by: Chengguang Xu --- fs/overlayfs/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index 981f11ec51bc..a524af04b71d 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -472,7 +472,7 @@ static int ovl_fiemap(struct inode *inode, struct fiema= p_extent_info *fieinfo, =09=09 u64 start, u64 len) { =09int err; -=09struct inode *realinode =3D ovl_inode_real(inode); +=09struct inode *realinode =3D ovl_inode_realdata(inode); =09const struct cred *old_cred; =20 =09if (!realinode->i_op->fiemap) --=20 2.20.1