prison_add_allow
pr_allow_vmm_flag = prison_add_allow(NULL, "vmm", NULL,
pr_allow_vmm_ppt_flag = prison_add_allow(NULL, "vmm_ppt", NULL,
vfsp->vfc_prison_flag = prison_add_allow("mount", vfsp->vfc_name,
vfsp->vfc_prison_flag = prison_add_allow("mount", vfsp->vfc_name,
unsigned prison_add_allow(const char *prefix, const char *name,