range.h (775B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _LINUX_RANGE_H 3#define _LINUX_RANGE_H 4#include <linux/types.h> 5 6struct range { 7 u64 start; 8 u64 end; 9}; 10 11static inline u64 range_len(const struct range *range) 12{ 13 return range->end - range->start + 1; 14} 15 16int add_range(struct range *range, int az, int nr_range, 17 u64 start, u64 end); 18 19 20int add_range_with_merge(struct range *range, int az, int nr_range, 21 u64 start, u64 end); 22 23void subtract_range(struct range *range, int az, u64 start, u64 end); 24 25int clean_sort_range(struct range *range, int az); 26 27void sort_range(struct range *range, int nr_range); 28 29#define MAX_RESOURCE ((resource_size_t)~0) 30static inline resource_size_t cap_resource(u64 val) 31{ 32 if (val > MAX_RESOURCE) 33 return MAX_RESOURCE; 34 35 return val; 36} 37#endif