From patchwork Sat May 9 16:32:40 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Darrick J. Wong" X-Patchwork-Id: 11538425 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 57038912 for ; Sat, 9 May 2020 16:32:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3B4D420735 for ; Sat, 9 May 2020 16:32:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="nxuSzjRD" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728323AbgEIQct (ORCPT ); Sat, 9 May 2020 12:32:49 -0400 Received: from userp2130.oracle.com ([156.151.31.86]:50818 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728281AbgEIQcp (ORCPT ); Sat, 9 May 2020 12:32:45 -0400 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 049GMgAq072313; Sat, 9 May 2020 16:32:41 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=subject : from : to : cc : date : message-id : in-reply-to : references : mime-version : content-type : content-transfer-encoding; s=corp-2020-01-29; bh=EMiylHkb+UfdwgRp+LAkTDoazRCGOMBEhlccS1JxGr0=; b=nxuSzjRD80m+5XRz883dwjou9Yg8RsgvqsEsHBjEV0B7Ll8hObciH1Kr67q+6eyE570N OuFe7lgZhqZOcHi9gjukR/e9ck4D/vN3HVSmhiikQz4cyKe2uofqncoZyC/6EviAg9w7 cTkK3444nQSOnSsA90m89hvRu6UYyznxqfvVxUelk+GB2KF8X/7nLoYv7tOmKWmREyPo AcWU0A1ey3VdTh4TDh1D0UdB5rGLasnFi6I7OYyBqXl6ITwz03c+0oV/xM9creF41KbL 69ZF7Cjwue4yEOQsAMPKyIjHfC3eHzNJ9ZjIihH3lnDTw+bKNQl/lOIvO+yDzbRGL4bU xQ== Received: from userp3020.oracle.com (userp3020.oracle.com [156.151.31.79]) by userp2130.oracle.com with ESMTP id 30wkxqs6jf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sat, 09 May 2020 16:32:41 +0000 Received: from pps.filterd (userp3020.oracle.com [127.0.0.1]) by userp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 049GTufb112489; Sat, 9 May 2020 16:32:41 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userp3020.oracle.com with ESMTP id 30wx11cww3-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sat, 09 May 2020 16:32:41 +0000 Received: from abhmp0018.oracle.com (abhmp0018.oracle.com [141.146.116.24]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 049GWeSo021143; Sat, 9 May 2020 16:32:40 GMT Received: from localhost (/67.169.218.210) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Sat, 09 May 2020 09:32:40 -0700 Subject: [PATCH 9/9] xfs_repair: track blocks lost during btree construction via extents From: "Darrick J. Wong" To: sandeen@sandeen.net, darrick.wong@oracle.com Cc: linux-xfs@vger.kernel.org, bfoster@redhat.com Date: Sat, 09 May 2020 09:32:40 -0700 Message-ID: <158904196027.984305.4802064994885970727.stgit@magnolia> In-Reply-To: <158904190079.984305.707785748675261111.stgit@magnolia> References: <158904190079.984305.707785748675261111.stgit@magnolia> User-Agent: StGit/0.19 MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9616 signatures=668687 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 spamscore=0 bulkscore=0 suspectscore=2 malwarescore=0 mlxscore=0 mlxlogscore=999 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2005090141 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9616 signatures=668687 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 mlxscore=0 bulkscore=0 priorityscore=1501 impostorscore=0 lowpriorityscore=0 clxscore=1015 malwarescore=0 suspectscore=2 phishscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2005090139 Sender: linux-xfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org From: Darrick J. Wong Use extent records (not just raw fsbs) to track blocks that were lost during btree construction. This makes it somewhat more efficient. Signed-off-by: Darrick J. Wong --- repair/phase5.c | 61 ++++++++++++++++++++++++++++++++----------------------- 1 file changed, 35 insertions(+), 26 deletions(-) diff --git a/repair/phase5.c b/repair/phase5.c index 9b064a1b..f8693528 100644 --- a/repair/phase5.c +++ b/repair/phase5.c @@ -45,6 +45,12 @@ struct bt_rebuild { }; }; +struct lost_fsb { + xfs_fsblock_t fsbno; + xfs_extlen_t len; +}; + + /* * extra metadata for the agi */ @@ -310,21 +316,24 @@ static void finish_rebuild( struct xfs_mount *mp, struct bt_rebuild *btr, - struct xfs_slab *lost_fsb) + struct xfs_slab *lost_fsbs) { struct xrep_newbt_resv *resv, *n; for_each_xrep_newbt_reservation(&btr->newbt, resv, n) { - while (resv->used < resv->len) { - xfs_fsblock_t fsb = resv->fsbno + resv->used; - int error; + struct lost_fsb lost; + int error; + + if (resv->used == resv->len) + continue; - error = slab_add(lost_fsb, &fsb); - if (error) - do_error( + lost.fsbno = resv->fsbno + resv->used; + lost.len = resv->len - resv->used; + error = slab_add(lost_fsbs, &lost); + if (error) + do_error( _("Insufficient memory saving lost blocks.\n")); - resv->used++; - } + resv->used = resv->len; } xrep_newbt_destroy(&btr->newbt, 0); @@ -1020,7 +1029,7 @@ build_agf_agfl( int lostblocks, /* # blocks that will be lost */ struct bt_rebuild *btr_rmap, struct bt_rebuild *btr_refc, - struct xfs_slab *lost_fsb) + struct xfs_slab *lost_fsbs) { struct extent_tree_node *ext_ptr; struct xfs_buf *agf_buf, *agfl_buf; @@ -1239,7 +1248,7 @@ static void phase5_func( struct xfs_mount *mp, xfs_agnumber_t agno, - struct xfs_slab *lost_fsb) + struct xfs_slab *lost_fsbs) { struct repair_ctx sc = { .mp = mp, }; struct agi_stat agi_stat = {0,}; @@ -1377,7 +1386,7 @@ phase5_func( * set up agf and agfl */ build_agf_agfl(mp, agno, &btr_bno, &btr_cnt, freeblks1, extra_blocks, - &btr_rmap, &btr_refc, lost_fsb); + &btr_rmap, &btr_refc, lost_fsbs); /* * build inode allocation trees. @@ -1392,15 +1401,15 @@ phase5_func( /* * tear down cursors */ - finish_rebuild(mp, &btr_bno, lost_fsb); - finish_rebuild(mp, &btr_cnt, lost_fsb); - finish_rebuild(mp, &btr_ino, lost_fsb); + finish_rebuild(mp, &btr_bno, lost_fsbs); + finish_rebuild(mp, &btr_cnt, lost_fsbs); + finish_rebuild(mp, &btr_ino, lost_fsbs); if (xfs_sb_version_hasfinobt(&mp->m_sb)) - finish_rebuild(mp, &btr_fino, lost_fsb); + finish_rebuild(mp, &btr_fino, lost_fsbs); if (xfs_sb_version_hasrmapbt(&mp->m_sb)) - finish_rebuild(mp, &btr_rmap, lost_fsb); + finish_rebuild(mp, &btr_rmap, lost_fsbs); if (xfs_sb_version_hasreflink(&mp->m_sb)) - finish_rebuild(mp, &btr_refc, lost_fsb); + finish_rebuild(mp, &btr_refc, lost_fsbs); /* * release the incore per-AG bno/bcnt trees so @@ -1420,19 +1429,19 @@ inject_lost_blocks( { struct xfs_trans *tp = NULL; struct xfs_slab_cursor *cur = NULL; - xfs_fsblock_t *fsb; + struct lost_fsb *lost; int error; error = init_slab_cursor(lost_fsbs, NULL, &cur); if (error) return error; - while ((fsb = pop_slab_cursor(cur)) != NULL) { + while ((lost = pop_slab_cursor(cur)) != NULL) { error = -libxfs_trans_alloc_rollable(mp, 16, &tp); if (error) goto out_cancel; - error = -libxfs_free_extent(tp, *fsb, 1, + error = -libxfs_free_extent(tp, lost->fsbno, lost->len, &XFS_RMAP_OINFO_ANY_OWNER, XFS_AG_RESV_NONE); if (error) goto out_cancel; @@ -1453,7 +1462,7 @@ inject_lost_blocks( void phase5(xfs_mount_t *mp) { - struct xfs_slab *lost_fsb; + struct xfs_slab *lost_fsbs; xfs_agnumber_t agno; int error; @@ -1496,12 +1505,12 @@ phase5(xfs_mount_t *mp) if (sb_fdblocks_ag == NULL) do_error(_("cannot alloc sb_fdblocks_ag buffers\n")); - error = init_slab(&lost_fsb, sizeof(xfs_fsblock_t)); + error = init_slab(&lost_fsbs, sizeof(struct lost_fsb)); if (error) do_error(_("cannot alloc lost block slab\n")); for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) - phase5_func(mp, agno, lost_fsb); + phase5_func(mp, agno, lost_fsbs); print_final_rpt(); @@ -1544,10 +1553,10 @@ _("unable to add AG %u reverse-mapping data to btree.\n"), agno); * Put blocks that were unnecessarily reserved for btree * reconstruction back into the filesystem free space data. */ - error = inject_lost_blocks(mp, lost_fsb); + error = inject_lost_blocks(mp, lost_fsbs); if (error) do_error(_("Unable to reinsert lost blocks into filesystem.\n")); - free_slab(&lost_fsb); + free_slab(&lost_fsbs); bad_ino_btree = 0;