forked from luck/tmp_suning_uos_patched
9228d751eb
Now that we encode block magic numbers in all the buffer ops, use that for block type detection in the ag header repair code instead of encoding magics directly in the repair code. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
92 lines
2.5 KiB
C
92 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2018 Oracle. All Rights Reserved.
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* Author: Darrick J. Wong <darrick.wong@oracle.com>
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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 xrep_notsupported(struct xfs_scrub *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 xrep_attempt(struct xfs_inode *ip, struct xfs_scrub *sc, bool *fixed);
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void xrep_failure(struct xfs_mount *mp);
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int xrep_roll_ag_trans(struct xfs_scrub *sc);
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bool xrep_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 xrep_calc_ag_resblks(struct xfs_scrub *sc);
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int xrep_alloc_ag_block(struct xfs_scrub *sc,
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const struct xfs_owner_info *oinfo, xfs_fsblock_t *fsbno,
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enum xfs_ag_resv_type resv);
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int xrep_init_btblock(struct xfs_scrub *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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struct xfs_bitmap;
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int xrep_fix_freelist(struct xfs_scrub *sc, bool can_shrink);
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int xrep_invalidate_blocks(struct xfs_scrub *sc, struct xfs_bitmap *btlist);
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int xrep_reap_extents(struct xfs_scrub *sc, struct xfs_bitmap *exlist,
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const struct xfs_owner_info *oinfo, enum xfs_ag_resv_type type);
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struct xrep_find_ag_btree {
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/* in: rmap owner of the btree we're looking for */
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uint64_t rmap_owner;
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/* in: buffer ops */
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const struct xfs_buf_ops *buf_ops;
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/* out: the highest btree block found and the tree height */
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xfs_agblock_t root;
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unsigned int height;
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};
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int xrep_find_ag_btree_roots(struct xfs_scrub *sc, struct xfs_buf *agf_bp,
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struct xrep_find_ag_btree *btree_info, struct xfs_buf *agfl_bp);
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void xrep_force_quotacheck(struct xfs_scrub *sc, uint dqtype);
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int xrep_ino_dqattach(struct xfs_scrub *sc);
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/* Metadata repairers */
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int xrep_probe(struct xfs_scrub *sc);
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int xrep_superblock(struct xfs_scrub *sc);
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int xrep_agf(struct xfs_scrub *sc);
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int xrep_agfl(struct xfs_scrub *sc);
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int xrep_agi(struct xfs_scrub *sc);
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#else
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static inline int xrep_attempt(
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struct xfs_inode *ip,
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struct xfs_scrub *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 xrep_failure(struct xfs_mount *mp) {}
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static inline xfs_extlen_t
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xrep_calc_ag_resblks(
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struct xfs_scrub *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 xrep_probe xrep_notsupported
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#define xrep_superblock xrep_notsupported
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#define xrep_agf xrep_notsupported
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#define xrep_agfl xrep_notsupported
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#define xrep_agi xrep_notsupported
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#endif /* CONFIG_XFS_ONLINE_REPAIR */
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#endif /* __XFS_SCRUB_REPAIR_H__ */
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