109 lines
2.7 KiB
C
109 lines
2.7 KiB
C
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/*
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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_rtalloc.h"
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#include "xfs_inode.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/trace.h"
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/* Set us up with the realtime metadata locked. */
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int
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xfs_scrub_setup_rt(
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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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struct xfs_mount *mp = sc->mp;
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int error = 0;
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/*
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* If userspace gave us an AG number or inode data, they don't
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* know what they're doing. Get out.
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*/
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if (sc->sm->sm_agno || sc->sm->sm_ino || sc->sm->sm_gen)
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return -EINVAL;
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error = xfs_scrub_setup_fs(sc, ip);
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if (error)
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return error;
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sc->ilock_flags = XFS_ILOCK_EXCL | XFS_ILOCK_RTBITMAP;
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sc->ip = mp->m_rbmip;
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xfs_ilock(sc->ip, sc->ilock_flags);
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return 0;
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}
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/* Realtime bitmap. */
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/* Scrub a free extent record from the realtime bitmap. */
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STATIC int
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xfs_scrub_rtbitmap_rec(
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struct xfs_trans *tp,
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struct xfs_rtalloc_rec *rec,
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void *priv)
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{
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struct xfs_scrub_context *sc = priv;
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if (rec->ar_startblock + rec->ar_blockcount <= rec->ar_startblock ||
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!xfs_verify_rtbno(sc->mp, rec->ar_startblock) ||
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!xfs_verify_rtbno(sc->mp, rec->ar_startblock +
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rec->ar_blockcount - 1))
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xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, 0);
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return 0;
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}
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/* Scrub the realtime bitmap. */
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int
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xfs_scrub_rtbitmap(
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struct xfs_scrub_context *sc)
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{
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int error;
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error = xfs_rtalloc_query_all(sc->tp, xfs_scrub_rtbitmap_rec, sc);
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if (!xfs_scrub_fblock_process_error(sc, XFS_DATA_FORK, 0, &error))
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goto out;
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out:
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return error;
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}
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/* Scrub the realtime summary. */
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int
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xfs_scrub_rtsummary(
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struct xfs_scrub_context *sc)
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{
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/* XXX: implement this some day */
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return -ENOENT;
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}
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