1 // SPDX-License-Identifier: GPL-2.0 2 #include <linux/zalloc.h> 3 #include "mem-info.h" 4 5 struct mem_info *mem_info__get(struct mem_info *mi) 6 { 7 struct mem_info *result; 8 9 if (RC_CHK_GET(result, mi)) 10 refcount_inc(mem_info__refcnt(mi)); 11 12 return result; 13 } 14 15 void mem_info__put(struct mem_info *mi) 16 { 17 if (mi && refcount_dec_and_test(mem_info__refcnt(mi))) { 18 addr_map_symbol__exit(mem_info__iaddr(mi)); 19 addr_map_symbol__exit(mem_info__daddr(mi)); 20 RC_CHK_FREE(mi); 21 } else { 22 RC_CHK_PUT(mi); 23 } 24 } 25 26 struct mem_info *mem_info__new(void) 27 { 28 struct mem_info *result = NULL; 29 RC_STRUCT(mem_info) *mi = zalloc(sizeof(*mi)); 30 31 if (ADD_RC_CHK(result, mi)) 32 refcount_set(mem_info__refcnt(result), 1); 33 34 return result; 35 } 36 37 struct mem_info *mem_info__clone(struct mem_info *mi) 38 { 39 struct mem_info *result = mem_info__new(); 40 41 if (result) { 42 addr_map_symbol__copy(mem_info__iaddr(result), mem_info__iaddr(mi)); 43 addr_map_symbol__copy(mem_info__daddr(result), mem_info__daddr(mi)); 44 mem_info__data_src(result)->val = mem_info__data_src(mi)->val; 45 } 46 47 return result; 48 } 49