From patchwork Fri Nov 3 14:45:27 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 10040443 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 4D95F6032D for ; Fri, 3 Nov 2017 14:46:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4274829696 for ; Fri, 3 Nov 2017 14:46:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 36E7C29698; Fri, 3 Nov 2017 14:46:17 +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 9BF1129688 for ; Fri, 3 Nov 2017 14:46:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752966AbdKCOqP (ORCPT ); Fri, 3 Nov 2017 10:46:15 -0400 Received: from bombadil.infradead.org ([65.50.211.133]:52582 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933219AbdKCOqO (ORCPT ); Fri, 3 Nov 2017 10:46:14 -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:To:From:Sender:Reply-To:Cc: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=tihSiyBUEnbe2P8aMKgKsQKWV32IF83bkx7OZAVYA04=; b=uDS3V2yEh9dfRsXotYsu0n3i7 xWUYbO4zEDx1WgiwM0ll3eSzpsKEnV4TPRyWxpBgO8IpY/Y2b6wBFUDt5wNsOKE6ik8YhFNa+DCwY 3q7fPh70DLI5XFh/iWSI3N1wkw/pHEb60LF5dqNnatUzGQ3bu+/olpCPCc92w3/UlB0J+NJTG14kj AcVfE8s5GOaYVWJqi/7/ZpmJVsqHzwdn1+KNbaP7ZSk9S4Iqp74FWNUzXXelLEtBM95iW3UhYsi/1 NwU/tB7PIE6QQkx75Ktny8II6Y7rqT2pUOfnmLieXvU58hRnwc3hu16SUxyVJ7DCoaY3yaSHuHteQ 05j0ZViSA==; Received: from [94.72.11.11] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.87 #1 (Red Hat Linux)) id 1eAdEb-0001w7-Li for linux-xfs@vger.kernel.org; Fri, 03 Nov 2017 14:46:14 +0000 From: Christoph Hellwig To: linux-xfs@vger.kernel.org Subject: [PATCH 09/21] xfs: pass an on-disk extent to xfs_bmbt_validate_extent Date: Fri, 3 Nov 2017 17:45:27 +0300 Message-Id: <20171103144539.2187-10-hch@lst.de> X-Mailer: git-send-email 2.14.2 In-Reply-To: <20171103144539.2187-1-hch@lst.de> References: <20171103144539.2187-1-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 This prepares for getting rid of the current in-memory extent format. At the end of the series we will change the calling convention again to pass the xfs_bmbt_irec structure once it is available everywhere. Signed-off-by: Christoph Hellwig Reviewed-by: Brian Foster Reviewed-by: Darrick J. Wong --- fs/xfs/libxfs/xfs_bmap.c | 6 +++--- fs/xfs/libxfs/xfs_bmap_btree.h | 4 ++-- fs/xfs/libxfs/xfs_inode_fork.c | 9 ++++----- 3 files changed, 9 insertions(+), 10 deletions(-) diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 62270b871d06..8ce7bf19916f 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -1260,14 +1260,14 @@ xfs_iread_extents( frp = XFS_BMBT_REC_ADDR(mp, block, 1); for (j = 0; j < num_recs; j++, i++, frp++) { xfs_bmbt_rec_host_t *trp = xfs_iext_get_ext(ifp, i); - trp->l0 = be64_to_cpu(frp->l0); - trp->l1 = be64_to_cpu(frp->l1); - if (!xfs_bmbt_validate_extent(mp, whichfork, trp)) { + if (!xfs_bmbt_validate_extent(mp, whichfork, frp)) { XFS_ERROR_REPORT("xfs_bmap_read_extents(2)", XFS_ERRLEVEL_LOW, mp); error = -EFSCORRUPTED; goto out_brelse; } + trp->l0 = be64_to_cpu(frp->l0); + trp->l1 = be64_to_cpu(frp->l1); trace_xfs_read_extent(ip, i, state, _THIS_IP_); } xfs_trans_brelse(tp, bp); diff --git a/fs/xfs/libxfs/xfs_bmap_btree.h b/fs/xfs/libxfs/xfs_bmap_btree.h index 6f891eeb88f6..2fbfe2a24b15 100644 --- a/fs/xfs/libxfs/xfs_bmap_btree.h +++ b/fs/xfs/libxfs/xfs_bmap_btree.h @@ -127,9 +127,9 @@ extern struct xfs_btree_cur *xfs_bmbt_init_cursor(struct xfs_mount *, * Check that the extent does not contain an invalid unwritten extent flag. */ static inline bool xfs_bmbt_validate_extent(struct xfs_mount *mp, int whichfork, - struct xfs_bmbt_rec_host *ep) + struct xfs_bmbt_rec *ep) { - if (ep->l0 >> (64 - BMBT_EXNTFLAG_BITLEN) == 0) + if (get_unaligned_be64(&ep->l0) >> (64 - BMBT_EXNTFLAG_BITLEN) == 0) return true; if (whichfork == XFS_DATA_FORK && xfs_sb_version_hasextflgbit(&mp->m_sb)) diff --git a/fs/xfs/libxfs/xfs_inode_fork.c b/fs/xfs/libxfs/xfs_inode_fork.c index bb63f38b97cc..abe601b48c9c 100644 --- a/fs/xfs/libxfs/xfs_inode_fork.c +++ b/fs/xfs/libxfs/xfs_inode_fork.c @@ -371,13 +371,13 @@ xfs_iformat_extents( dp = (xfs_bmbt_rec_t *) XFS_DFORK_PTR(dip, whichfork); for (i = 0; i < nex; i++, dp++) { xfs_bmbt_rec_host_t *ep = xfs_iext_get_ext(ifp, i); - ep->l0 = get_unaligned_be64(&dp->l0); - ep->l1 = get_unaligned_be64(&dp->l1); - if (!xfs_bmbt_validate_extent(mp, whichfork, ep)) { + if (!xfs_bmbt_validate_extent(mp, whichfork, dp)) { XFS_ERROR_REPORT("xfs_iformat_extents(2)", XFS_ERRLEVEL_LOW, mp); return -EFSCORRUPTED; } + ep->l0 = get_unaligned_be64(&dp->l0); + ep->l1 = get_unaligned_be64(&dp->l1); trace_xfs_read_extent(ip, i, state, _THIS_IP_); } } @@ -764,8 +764,6 @@ xfs_iextents_copy( for (i = 0; i < nrecs; i++) { xfs_bmbt_rec_host_t *ep = xfs_iext_get_ext(ifp, i); - ASSERT(xfs_bmbt_validate_extent(ip->i_mount, whichfork, ep)); - start_block = xfs_bmbt_get_startblock(ep); if (isnullstartblock(start_block)) { /* @@ -779,6 +777,7 @@ xfs_iextents_copy( /* Translate to on disk format */ put_unaligned_be64(ep->l0, &dp->l0); put_unaligned_be64(ep->l1, &dp->l1); + ASSERT(xfs_bmbt_validate_extent(ip->i_mount, whichfork, dp)); dp++; copied++;