linux-kernel - Re: [PATCH v1 0/5] arm64/mm: uffd write-protect and soft-dirty tracking

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Message-ID: <Zijms8ikH7XiWgEx@arm.com>
Date: Wed, 24 Apr 2024 12:02:11 +0100
From: Catalin Marinas <catalin.marinas@....com>
To: Ryan Roberts <ryan.roberts@....com>
Cc: David Hildenbrand <david@...hat.com>,
	Shivansh Vij <shivanshvij@...look.com>,
	Mike Rapoport <rppt@...ux.ibm.com>, Will Deacon <will@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Shuah Khan <shuah@...nel.org>, Joey Gouly <joey.gouly@....com>,
	Ard Biesheuvel <ardb@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Anshuman Khandual <anshuman.khandual@....com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>,
	"linux-kselftest@...r.kernel.org" <linux-kselftest@...r.kernel.org>
Subject: Re: [PATCH v1 0/5] arm64/mm: uffd write-protect and soft-dirty
 tracking

On Wed, Apr 24, 2024 at 11:39:23AM +0100, Ryan Roberts wrote:
>   - Have a chat with Catalin about appetite for soft-dirty on arm64; But likely
>     that will be left here until/unless there is clear justificaiton that the
>     use case cannot be met with uffd-wp.

I agree, I wouldn't use the last software bit if there's a way for CRIU
to eventually use uffd-wp.

-- 
Catalin