1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _LINUX_RANGE_H 3 #define _LINUX_RANGE_H 4 #include <linux/types.h> 5 6 struct range { 7 u64 start; 8 u64 end; 9 }; 10 11 static inline u64 range_len(const struct range *range) 12 { 13 return range->end - range->start + 1; 14 } 15 16 static inline bool range_contains(const struct range *r1, 17 const struct range *r2) 18 { 19 return r1->start <= r2->start && r1->end >= r2->end; 20 } 21 22 int add_range(struct range *range, int az, int nr_range, 23 u64 start, u64 end); 24 25 26 int add_range_with_merge(struct range *range, int az, int nr_range, 27 u64 start, u64 end); 28 29 void subtract_range(struct range *range, int az, u64 start, u64 end); 30 31 int clean_sort_range(struct range *range, int az); 32 33 void sort_range(struct range *range, int nr_range); 34 35 #endif 36