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 xbitmap_range {
10	struct list_head	list;
11	uint64_t		start;
12	uint64_t		len;
13};
14
15struct xbitmap {
16	struct list_head	list;
17};
18
19void xbitmap_init(struct xbitmap *bitmap);
20void xbitmap_destroy(struct xbitmap *bitmap);
21
22#define for_each_xbitmap_extent(bex, n, bitmap) \
23	list_for_each_entry_safe((bex), (n), &(bitmap)->list, list)
24
25#define for_each_xbitmap_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 xbitmap_set(struct xbitmap *bitmap, uint64_t start, uint64_t len);
30int xbitmap_disunion(struct xbitmap *bitmap, struct xbitmap *sub);
31int xbitmap_set_btcur_path(struct xbitmap *bitmap,
32		struct xfs_btree_cur *cur);
33int xbitmap_set_btblocks(struct xbitmap *bitmap,
34		struct xfs_btree_cur *cur);
35uint64_t xbitmap_hweight(struct xbitmap *bitmap);
36
37#endif	/* __XFS_SCRUB_BITMAP_H__ */