115 строки
3.1 KiB
C
115 строки
3.1 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_inode.h"
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#include "xfs_alloc.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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/* btree scrubbing */
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/*
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* Check for btree operation errors. See the section about handling
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* operational errors in common.c.
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*/
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bool
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xfs_scrub_btree_process_error(
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struct xfs_scrub_context *sc,
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struct xfs_btree_cur *cur,
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int level,
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int *error)
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{
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if (*error == 0)
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return true;
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switch (*error) {
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case -EDEADLOCK:
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/* Used to restart an op with deadlock avoidance. */
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trace_xfs_scrub_deadlock_retry(sc->ip, sc->sm, *error);
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break;
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case -EFSBADCRC:
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case -EFSCORRUPTED:
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/* Note the badness but don't abort. */
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sc->sm->sm_flags |= XFS_SCRUB_OFLAG_CORRUPT;
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*error = 0;
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/* fall through */
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default:
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if (cur->bc_flags & XFS_BTREE_ROOT_IN_INODE)
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trace_xfs_scrub_ifork_btree_op_error(sc, cur, level,
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*error, __return_address);
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else
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trace_xfs_scrub_btree_op_error(sc, cur, level,
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*error, __return_address);
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break;
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}
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return false;
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}
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/* Record btree block corruption. */
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void
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xfs_scrub_btree_set_corrupt(
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struct xfs_scrub_context *sc,
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struct xfs_btree_cur *cur,
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int level)
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{
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sc->sm->sm_flags |= XFS_SCRUB_OFLAG_CORRUPT;
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if (cur->bc_flags & XFS_BTREE_ROOT_IN_INODE)
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trace_xfs_scrub_ifork_btree_error(sc, cur, level,
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__return_address);
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else
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trace_xfs_scrub_btree_error(sc, cur, level,
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__return_address);
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}
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/*
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* Visit all nodes and leaves of a btree. Check that all pointers and
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* records are in order, that the keys reflect the records, and use a callback
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* so that the caller can verify individual records. The callback is the same
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* as the one for xfs_btree_query_range, so therefore this function also
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* returns XFS_BTREE_QUERY_RANGE_ABORT, zero, or a negative error code.
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*/
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int
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xfs_scrub_btree(
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struct xfs_scrub_context *sc,
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struct xfs_btree_cur *cur,
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xfs_scrub_btree_rec_fn scrub_fn,
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struct xfs_owner_info *oinfo,
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void *private)
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{
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int error = -EOPNOTSUPP;
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xfs_scrub_btree_process_error(sc, cur, 0, &error);
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return error;
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}
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