> - * Since the F_SEAL_FUTURE_WRITE seals allow for a MAP_SHARED > - * read-only mapping, take care to not allow mprotect to revert > - * protections. > + * Since an F_SEAL_FUTURE_WRITE sealed memfd can be mapped as > + * MAP_SHARED and read-only, take care to not allow mprotect to > + * revert protections on such mappings. Do this only for shared > + * mappings. For private mappings, don't need to mask VM_MAYWRITE This adds an > 80 char line.