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selftests/bpf: Make sure mount directory exists 

The mount directory for the selftests cgroup tree might
not exist so let's make sure it does exist by creating
it ourselves if it doesn't exist.

Signed-off-by: Daan De Meyer <daan.j.demeyer@gmail.com>
Link: https://lore.kernel.org/r/20231011185113.140426-9-daan.j.demeyer@gmail.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
This commit is contained in:
Daan De Meyer 2023-10-11 20:51:10 +02:00 committed by Martin KaFai Lau
parent 3243fef6a4
commit af2752ed45
1 changed files with 5 additions and 0 deletions
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5
tools/testing/selftests/bpf/cgroup_helpers.c
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@ -199,6 +199,11 @@ int setup_cgroup_environment(void)
format_cgroup_path(cgroup_workdir, "");
if (mkdir(CGROUP_MOUNT_PATH, 0777) && errno != EEXIST) {
log_err("mkdir mount");
return 1;
}
if (unshare(CLONE_NEWNS)) {
log_err("unshare");
return 1;