From patchwork Sat Jun 3 13:15:03 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 9764185 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id C65D1602B6 for ; Sat, 3 Jun 2017 13:16:01 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B952328470 for ; Sat, 3 Jun 2017 13:16:01 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AE26728579; Sat, 3 Jun 2017 13:16:01 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 50FFD28470 for ; Sat, 3 Jun 2017 13:16:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751212AbdFCNQA (ORCPT ); Sat, 3 Jun 2017 09:16:00 -0400 Received: from bombadil.infradead.org ([65.50.211.133]:46267 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750997AbdFCNQA (ORCPT ); Sat, 3 Jun 2017 09:16:00 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=yr/HdJV1LEPyQ3aUmFVuD5dauuCwTjjQun0mC9ZZ2zw=; b=TRJxg6nHmAS+keBzwkFqsmog1 w88RnNkQUuWl+wCCD8IxLcRdCA8I4WI5Gl2OdXyZ1HOI56pA9R7iFYPrb1ESZ2mQVPT7NfZ51lxCY lQuVt5RxHeIaYSPdNqdtW7Oj41xyzEu3q9+FIu2fbMhzR3p4DNu/8zlgm63f/NcsONC6cqYV/w6ZV YD7e9fsfOJhVbEKqzFRgE3uH9oPXRnVlmrK/CbROiACwP2CyHCg3DN0Q6Y3vgQV4aDKjdnFBEvNLT qOzC0MiqXzAgLrv9goYUreZg7NpNwCcg8MWcNgOwGdeoTj0gcNK8FVTv0ZfjZ5MEwN3X3udMN32gu 74Nd9WI9A==; Received: from p4ff2fcbf.dip0.t-ipconnect.de ([79.242.252.191] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.87 #1 (Red Hat Linux)) id 1dH8uN-0008KH-61; Sat, 03 Jun 2017 13:15:59 +0000 From: Christoph Hellwig To: stable@vger.kernel.org Cc: linux-xfs@vger.kernel.org, "Darrick J. Wong" Subject: [PATCH 15/23] xfs: BMAPX shouldn't barf on inline-format directories Date: Sat, 3 Jun 2017 15:15:03 +0200 Message-Id: <20170603131511.25032-16-hch@lst.de> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170603131511.25032-1-hch@lst.de> References: <20170603131511.25032-1-hch@lst.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-xfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: "Darrick J. Wong" commit 6eadbf4c8ba816c10d1c97bed9aa861d9fd17809 upstream. When we're fulfilling a BMAPX request, jump out early if the data fork is in local format. This prevents us from hitting a debugging check in bmapi_read and barfing errors back to userspace. The on-disk extent count check later isn't sufficient for IF_DELALLOC mode because da extents are in memory and not on disk. Signed-off-by: Darrick J. Wong Reviewed-by: Brian Foster Reviewed-by: Christoph Hellwig --- fs/xfs/xfs_bmap_util.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index cad4e3e2df00..9581e90fd559 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -583,9 +583,13 @@ xfs_getbmap( } break; default: + /* Local format data forks report no extents. */ + if (ip->i_d.di_format == XFS_DINODE_FMT_LOCAL) { + bmv->bmv_entries = 0; + return 0; + } if (ip->i_d.di_format != XFS_DINODE_FMT_EXTENTS && - ip->i_d.di_format != XFS_DINODE_FMT_BTREE && - ip->i_d.di_format != XFS_DINODE_FMT_LOCAL) + ip->i_d.di_format != XFS_DINODE_FMT_BTREE) return -EINVAL; if (xfs_get_extsz_hint(ip) ||