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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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166d76410d
Create some stubs that will be used to cross-reference metadata records. The actual cross-referencing will be filled in by subsequent patches. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
116 lines
2.8 KiB
C
116 lines
2.8 KiB
C
/*
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* Copyright (C) 2017 Oracle. All Rights Reserved.
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*
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* Author: Darrick J. Wong <darrick.wong@oracle.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "xfs.h"
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#include "xfs_fs.h"
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#include "xfs_shared.h"
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#include "xfs_format.h"
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#include "xfs_trans_resv.h"
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#include "xfs_mount.h"
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#include "xfs_defer.h"
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#include "xfs_btree.h"
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#include "xfs_bit.h"
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#include "xfs_log_format.h"
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#include "xfs_trans.h"
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#include "xfs_sb.h"
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#include "xfs_alloc.h"
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#include "xfs_rmap.h"
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#include "scrub/xfs_scrub.h"
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#include "scrub/scrub.h"
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#include "scrub/common.h"
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#include "scrub/btree.h"
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#include "scrub/trace.h"
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/*
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* Set us up to scrub free space btrees.
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*/
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int
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xfs_scrub_setup_ag_allocbt(
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struct xfs_scrub_context *sc,
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struct xfs_inode *ip)
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{
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return xfs_scrub_setup_ag_btree(sc, ip, false);
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}
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/* Free space btree scrubber. */
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/* Cross-reference with the other btrees. */
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STATIC void
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xfs_scrub_allocbt_xref(
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struct xfs_scrub_context *sc,
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xfs_agblock_t agbno,
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xfs_extlen_t len)
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{
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if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
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return;
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}
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/* Scrub a bnobt/cntbt record. */
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STATIC int
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xfs_scrub_allocbt_rec(
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struct xfs_scrub_btree *bs,
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union xfs_btree_rec *rec)
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{
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struct xfs_mount *mp = bs->cur->bc_mp;
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xfs_agnumber_t agno = bs->cur->bc_private.a.agno;
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xfs_agblock_t bno;
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xfs_extlen_t len;
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int error = 0;
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bno = be32_to_cpu(rec->alloc.ar_startblock);
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len = be32_to_cpu(rec->alloc.ar_blockcount);
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if (bno + len <= bno ||
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!xfs_verify_agbno(mp, agno, bno) ||
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!xfs_verify_agbno(mp, agno, bno + len - 1))
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xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
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xfs_scrub_allocbt_xref(bs->sc, bno, len);
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return error;
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}
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/* Scrub the freespace btrees for some AG. */
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STATIC int
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xfs_scrub_allocbt(
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struct xfs_scrub_context *sc,
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xfs_btnum_t which)
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{
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struct xfs_owner_info oinfo;
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struct xfs_btree_cur *cur;
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xfs_rmap_ag_owner(&oinfo, XFS_RMAP_OWN_AG);
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cur = which == XFS_BTNUM_BNO ? sc->sa.bno_cur : sc->sa.cnt_cur;
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return xfs_scrub_btree(sc, cur, xfs_scrub_allocbt_rec, &oinfo, NULL);
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}
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int
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xfs_scrub_bnobt(
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struct xfs_scrub_context *sc)
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{
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return xfs_scrub_allocbt(sc, XFS_BTNUM_BNO);
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}
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int
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xfs_scrub_cntbt(
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struct xfs_scrub_context *sc)
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{
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return xfs_scrub_allocbt(sc, XFS_BTNUM_CNT);
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}
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