On 14 Sep 2010 at 16:04, Roland McGrath wrote: > > userland could never rely on the kernel's policy at all since get_arg_page > > could have failed for more reasons than overstepping the currently hardcoded > > ARG_MAX check in there. > > I don't see how it could fail except for OOM cases where get_user_pages() > failed rather than blocking. Is that what you mean? yes but it's not only OOM (ENOMEM from some allocation), but it can be also EPERM from LSM (if mmap_min_addr is set too high) or EFAULT from get_user_pages (e.g., if VM_FAULT_HWPOISON was returned for a requested page). -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
