Re: [PATCH v2 0/3] Create 'old' ptes for faultaround mappings on arm64 with hardware access flag
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: 2021-01-12 21:56:59
Also in:
linux-arm-kernel, lkml
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: 2021-01-12 21:56:59
Also in:
linux-arm-kernel, lkml
On Tue, Jan 12, 2021 at 1:48 PM Will Deacon [off-list ref] wrote:
quoted
And then if somebody actually needs to pass in "modified fault state" (ie that whole "I'm doing fault-around, so I'll use multiple addresses") they'd never modify the address in the fault info, they'd just pass the address as an explicit argument (like most cases already do - the "change addr or flags in vmf" is actually already _fairly_ rare).Alright then, I'll take another crack at this for v3 and see how far I get.
But please do keep it as a separate patch, and if it turns out to be
ugly for whatever reason, treat it as just a "maybe that would help"
suggestion rather than anything stronger..
Linus