34 	char mnt[PATH_MAX + 1];  in open_cgroup()  local
38 	if (cgroupfs_find_mountpoint(mnt, PATH_MAX + 1, "perf_event"))  in open_cgroup()
41 	scnprintf(path, PATH_MAX, "%s/%s", mnt, name);  in open_cgroup()
69 	char mnt[PATH_MAX + 1];  in read_cgroup_id()  local
71 	if (cgroupfs_find_mountpoint(mnt, PATH_MAX + 1, "perf_event"))  in read_cgroup_id()
74 	scnprintf(path, PATH_MAX, "%s/%s", mnt, cgrp->name);  in read_cgroup_id()
89 	char mnt[PATH_MAX + 1];  in cgroup_is_v2()  local
92 	if (cgroupfs_find_mountpoint(mnt, PATH_MAX + 1, subsys))  in cgroup_is_v2()
95 	if (statfs(mnt, &stbuf) < 0)  in cgroup_is_v2()
302 	char mnt[PATH_MAX];  in match_cgroups()  local
309 	if (cgroupfs_find_mountpoint(mnt, sizeof(mnt), "perf_event"))  in match_cgroups()
313 	prefix_len = strlen(mnt);  in match_cgroups()
316 	if (nftw(mnt, add_cgroup_name, 20, 0) < 0)  in match_cgroups()
601 	char mnt[PATH_MAX];  in read_all_cgroups()  local
605 	if (cgroupfs_find_mountpoint(mnt, sizeof(mnt), "perf_event"))  in read_all_cgroups()
609 	prefix_len = strlen(mnt);  in read_all_cgroups()
612 	if (nftw(mnt, add_cgroup_name, 20, 0) < 0)  in read_all_cgroups()