On Thu, Dec 14, 2017 at 08:35:50AM -0800, Andy Lutomirski wrote: > > @@ -3252,6 +3256,7 @@ static const struct vm_operations_struct > > .fault = special_mapping_fault, > > .mremap = special_mapping_mremap, > > .name = special_mapping_name, > > + .split = special_mapping_split, > > }; > > > > static const struct vm_operations_struct legacy_special_mapping_vmops = { > > Disallowing splitting seems fine. Disallowing munmap might not be. > Certainly CRIU relies on being able to mremap() the VDSO. And for mremap() we need do_munmap() to work, argh. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>