1 // SPDX-License-Identifier: LGPL-2.1
2 
3 #ifndef _PERF_BPF_PID_FILTER_
4 #define _PERF_BPF_PID_FILTER_
5 
6 #include <bpf.h>
7 
8 #define pid_filter(name) pid_map(name, bool)
9 
pid_filter__add(struct bpf_map * pids,pid_t pid)10 static int pid_filter__add(struct bpf_map *pids, pid_t pid)
11 {
12 	bool value = true;
13 	return bpf_map_update_elem(pids, &pid, &value, BPF_NOEXIST);
14 }
15 
pid_filter__has(struct bpf_map * pids,pid_t pid)16 static bool pid_filter__has(struct bpf_map *pids, pid_t pid)
17 {
18 	return bpf_map_lookup_elem(pids, &pid) != NULL;
19 }
20 
21 #endif // _PERF_BPF_PID_FILTER_
22