bitmap.h (1112B)
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__ */