linux-kernel - Re: [PATCH] mm/gup: don't check page lru flag before draining it

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: <ZmR1dVUB5mE2If9t@casper.infradead.org>
Date: Sat, 8 Jun 2024 16:15:01 +0100
From: Matthew Wilcox <willy@...radead.org>
To: yangge1116 <yangge1116@....com>
Cc: David Hildenbrand <david@...hat.com>,
	Baolin Wang <baolin.wang@...ux.alibaba.com>,
	akpm@...ux-foundation.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, liuzixing@...on.cn
Subject: Re: [PATCH] mm/gup: don't check page lru flag before draining it

On Sat, Jun 08, 2024 at 12:38:49PM +0800, yangge1116 wrote:
> Can we add a PG_lru_batch flag to determine whether a page is in lru batch?
> If we can, seems this problem will be easier.

Page flags are in short supply.  You'd need a really good justification.