diff options
Diffstat (limited to 'tools/testing')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/rcu_read_lock.c | 5 | ||||
| -rw-r--r-- | tools/testing/selftests/bpf/progs/task_kfunc_success.c | 9 |
2 files changed, 12 insertions, 2 deletions
diff --git a/tools/testing/selftests/bpf/progs/rcu_read_lock.c b/tools/testing/selftests/bpf/progs/rcu_read_lock.c index cf06a34fcb02..125f908024d3 100644 --- a/tools/testing/selftests/bpf/progs/rcu_read_lock.c +++ b/tools/testing/selftests/bpf/progs/rcu_read_lock.c @@ -161,6 +161,11 @@ int task_acquire(void *ctx) /* acquire a reference which can be used outside rcu read lock region */ gparent = bpf_task_acquire_not_zero(gparent); if (!gparent) + /* Until we resolve the issues with using task->rcu_users, we + * expect bpf_task_acquire_not_zero() to return a NULL task. + * See the comment at the definition of + * bpf_task_acquire_not_zero() for more details. + */ goto out; (void)bpf_task_storage_get(&map_a, gparent, 0, 0); diff --git a/tools/testing/selftests/bpf/progs/task_kfunc_success.c b/tools/testing/selftests/bpf/progs/task_kfunc_success.c index 60c7ead41cfc..9f359cfd29e7 100644 --- a/tools/testing/selftests/bpf/progs/task_kfunc_success.c +++ b/tools/testing/selftests/bpf/progs/task_kfunc_success.c @@ -123,12 +123,17 @@ int BPF_PROG(test_task_get_release, struct task_struct *task, u64 clone_flags) } kptr = bpf_task_kptr_get(&v->task); - if (!kptr) { + if (kptr) { + /* Until we resolve the issues with using task->rcu_users, we + * expect bpf_task_kptr_get() to return a NULL task. See the + * comment at the definition of bpf_task_acquire_not_zero() for + * more details. + */ + bpf_task_release(kptr); err = 3; return 0; } - bpf_task_release(kptr); return 0; } |