linux-kernel - Re: [RFC PATCH 1/4] mm: migrate: Allow misplaced migration without VMA too

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <Z8naQNirs4HfTX0O@gourry-fedora-PF4VCD3F>
Date: Thu, 6 Mar 2025 12:24:16 -0500
From: Gregory Price <gourry@...rry.net>
To: Bharata B Rao <bharata@....com>
Cc: linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	AneeshKumar.KizhakeVeetil@....com, Hasan.Maruf@....com,
	Jonathan.Cameron@...wei.com, Michael.Day@....com,
	akpm@...ux-foundation.org, dave.hansen@...el.com, david@...hat.com,
	feng.tang@...el.com, hannes@...xchg.org, honggyu.kim@...com,
	hughd@...gle.com, jhubbard@...dia.com, k.shutemov@...il.com,
	kbusch@...a.com, kmanaouil.dev@...il.com, leesuyeon0506@...il.com,
	leillc@...gle.com, liam.howlett@...cle.com,
	mgorman@...hsingularity.net, mingo@...hat.com, nadav.amit@...il.com,
	nphamcs@...il.com, peterz@...radead.org, raghavendra.kt@....com,
	riel@...riel.com, rientjes@...gle.com, rppt@...nel.org,
	shivankg@....com, shy828301@...il.com, sj@...nel.org,
	vbabka@...e.cz, weixugc@...gle.com, willy@...radead.org,
	ying.huang@...ux.alibaba.com, ziy@...dia.com, dave@...olabs.net,
	yuanchu@...gle.com, hyeonggon.yoo@...com
Subject: Re: [RFC PATCH 1/4] mm: migrate: Allow misplaced migration without
 VMA too

On Thu, Mar 06, 2025 at 11:15:29AM +0530, Bharata B Rao wrote:
> migrate_misplaced_folio_prepare() can be called from a
> context where VMA isn't available. Allow the migration
> to work from such contexts too.
> 
> Signed-off-by: Bharata B Rao <bharata@....com>

I have a similar patch in the unmapped pagecache RFC

we may also need this:
https://lore.kernel.org/linux-mm/20250107000346.1338481-4-gourry@gourry.net/

May be worth just pulling these ahead to avoid conflict.

~Gregory