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73d6b42aa4
Add a pair of helper functions to allocate and initialize fresh btree roots. The repair functions will use these as part of recreating corrupted metadata. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
74 lines
2.2 KiB
C
74 lines
2.2 KiB
C
/*
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* Copyright (C) 2018 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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#ifndef __XFS_SCRUB_REPAIR_H__
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#define __XFS_SCRUB_REPAIR_H__
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static inline int xfs_repair_notsupported(struct xfs_scrub_context *sc)
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{
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return -EOPNOTSUPP;
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}
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#ifdef CONFIG_XFS_ONLINE_REPAIR
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/* Repair helpers */
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int xfs_repair_attempt(struct xfs_inode *ip, struct xfs_scrub_context *sc,
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bool *fixed);
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void xfs_repair_failure(struct xfs_mount *mp);
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int xfs_repair_roll_ag_trans(struct xfs_scrub_context *sc);
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bool xfs_repair_ag_has_space(struct xfs_perag *pag, xfs_extlen_t nr_blocks,
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enum xfs_ag_resv_type type);
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xfs_extlen_t xfs_repair_calc_ag_resblks(struct xfs_scrub_context *sc);
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int xfs_repair_alloc_ag_block(struct xfs_scrub_context *sc,
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struct xfs_owner_info *oinfo, xfs_fsblock_t *fsbno,
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enum xfs_ag_resv_type resv);
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int xfs_repair_init_btblock(struct xfs_scrub_context *sc, xfs_fsblock_t fsb,
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struct xfs_buf **bpp, xfs_btnum_t btnum,
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const struct xfs_buf_ops *ops);
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/* Metadata repairers */
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int xfs_repair_probe(struct xfs_scrub_context *sc);
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#else
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static inline int xfs_repair_attempt(
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struct xfs_inode *ip,
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struct xfs_scrub_context *sc,
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bool *fixed)
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{
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return -EOPNOTSUPP;
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}
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static inline void xfs_repair_failure(struct xfs_mount *mp) {}
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static inline xfs_extlen_t
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xfs_repair_calc_ag_resblks(
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struct xfs_scrub_context *sc)
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{
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ASSERT(!(sc->sm->sm_flags & XFS_SCRUB_IFLAG_REPAIR));
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return 0;
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}
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#define xfs_repair_probe xfs_repair_notsupported
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#endif /* CONFIG_XFS_ONLINE_REPAIR */
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#endif /* __XFS_SCRUB_REPAIR_H__ */
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