linux/fs/xfs/scrub/bitmap.h
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   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright (C) 2018 Oracle.  All Rights Reserved.
   4 * Author: Darrick J. Wong <darrick.wong@oracle.com>
   5 */
   6#ifndef __XFS_SCRUB_BITMAP_H__
   7#define __XFS_SCRUB_BITMAP_H__
   8
   9struct xfs_bitmap_range {
  10        struct list_head        list;
  11        uint64_t                start;
  12        uint64_t                len;
  13};
  14
  15struct xfs_bitmap {
  16        struct list_head        list;
  17};
  18
  19void xfs_bitmap_init(struct xfs_bitmap *bitmap);
  20void xfs_bitmap_destroy(struct xfs_bitmap *bitmap);
  21
  22#define for_each_xfs_bitmap_extent(bex, n, bitmap) \
  23        list_for_each_entry_safe((bex), (n), &(bitmap)->list, list)
  24
  25#define for_each_xfs_bitmap_block(b, bex, n, bitmap) \
  26        list_for_each_entry_safe((bex), (n), &(bitmap)->list, list) \
  27                for ((b) = bex->start; (b) < bex->start + bex->len; (b)++)
  28
  29int xfs_bitmap_set(struct xfs_bitmap *bitmap, uint64_t start, uint64_t len);
  30int xfs_bitmap_disunion(struct xfs_bitmap *bitmap, struct xfs_bitmap *sub);
  31int xfs_bitmap_set_btcur_path(struct xfs_bitmap *bitmap,
  32                struct xfs_btree_cur *cur);
  33int xfs_bitmap_set_btblocks(struct xfs_bitmap *bitmap,
  34                struct xfs_btree_cur *cur);
  35
  36#endif  /* __XFS_SCRUB_BITMAP_H__ */
  37