Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0
2#include <linux/zalloc.h>
3#include "mem-info.h"
4
5struct 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
15void 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
26struct 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
37struct 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}