repair/bulkload.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Copyright (C) 2020 Oracle.  All Rights Reserved.
   4  * Author: Darrick J. Wong <darrick.wong@oracle.com>
   5  */
   6 #ifndef __XFS_REPAIR_BULKLOAD_H__
   7 #define __XFS_REPAIR_BULKLOAD_H__
   8
   9 extern int bload_leaf_slack;
  10 extern int bload_node_slack;
  11
  12 struct repair_ctx {
  13         struct xfs_mount        *mp;
  14 };
  15
  16 struct bulkload_resv {
  17         /* Link to list of extents that we've reserved. */
  18         struct list_head        list;
  19
  20         /* FSB of the block we reserved. */
  21         xfs_fsblock_t           fsbno;
  22
  23         /* Length of the reservation. */
  24         xfs_extlen_t            len;
  25
  26         /* How much of this reservation we've used. */
  27         xfs_extlen_t            used;
  28 };
  29
  30 struct bulkload {
  31         struct repair_ctx       *sc;
  32
  33         /* List of extents that we've reserved. */
  34         struct list_head        resv_list;
  35
  36         /* Fake root for new btree. */
  37         struct xbtree_afakeroot afake;
  38
  39         /* rmap owner of these blocks */
  40         struct xfs_owner_info   oinfo;
  41
  42         /* The last reservation we allocated from. */
  43         struct bulkload_resv    *last_resv;
  44
  45         /* Number of blocks reserved via resv_list. */
  46         unsigned int            nr_reserved;
  47 };
  48
  49 #define for_each_bulkload_reservation(bkl, resv, n)     \
  50         list_for_each_entry_safe((resv), (n), &(bkl)->resv_list, list)
  51
  52 void bulkload_init_ag(struct bulkload *bkl, struct repair_ctx *sc,
  53                 const struct xfs_owner_info *oinfo);
  54 int bulkload_add_blocks(struct bulkload *bkl, xfs_fsblock_t fsbno,
  55                 xfs_extlen_t len);
  56 void bulkload_destroy(struct bulkload *bkl, int error);
  57 int bulkload_claim_block(struct xfs_btree_cur *cur, struct bulkload *bkl,
  58                 union xfs_btree_ptr *ptr);
  59 void bulkload_estimate_ag_slack(struct repair_ctx *sc,
  60                 struct xfs_btree_bload *bload, unsigned int free);
  61
  62 #endif /* __XFS_REPAIR_BULKLOAD_H__ */