[PATCH v2 15/20] vmalloc: New flags for safe vfree on special perms

Borislav Petkov bp at alien8.de
Wed Feb 20 16:14:12 UTC 2019

On Tue, Feb 19, 2019 at 07:42:53PM +0000, Edgecombe, Rick P wrote:
> So to capture both of those intentions, maybe I'll slightly tweak your
> suggestion to VM_FLUSH_RESET_PERMS?

Yeah, sure, better.

VM_HAS_SPECIAL_PERMS doesn't tell me what those special permissions are
while flush and reset permissions makes a lot more sense, thx.

> I had thought it was easier to read. If its not the case, I'll change it as you
> suggest.

My logic is, the less local vars, the easier to scan the code quickly.

> Ard had expressed interest in having the set_alias_() functions for Arm, and the
> names were chosen to be arch agnostic. He didn't explicitly commit but I was
> under the impression he might create an implementation for ARM and we could
> remove this block.

Yeah, Will has those on his radar too so we should be good here.



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