check_vma
if (check_vma(dev_dax, vmf->vma, __func__))
if (check_vma(dev_dax, vmf->vma, __func__))
if (check_vma(dev_dax, vmf->vma, __func__))
rc = check_vma(wq, vma, __func__);
find_addr_ret = bpf_find_vma(task, addr, check_vma, &data, 0);
find_zero_ret = bpf_find_vma(task, 0, check_vma, &data, 0);
find_addr_ret = bpf_find_vma(task, addr, check_vma, &data, 0);
find_zero_ret = bpf_find_vma(task, 0, check_vma, &data, 0);