Re: [PATCH v2] vmalloc: Fix issues with flush flag

[David Miller]

From: "Edgecombe, Rick P" <rick.p.edgecombe@xxxxxxxxx>
Date: Tue, 21 May 2019 01:20:33 +0000

> Should it handle executing an unmapped page gracefully? Because this
> change is causing that to happen much earlier. If something was relying
> on a cached translation to execute something it could find the mapping
> disappear.

Does this work by not mapping any kernel mappings at the beginning,
and then filling in the BPF mappings in response to faults?