linux-kernel - Re: [PATCH 2/2 v6] mm/mempolicy: Don't create weight sysfs for memoryless nodes

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] [day] [month] [year] [list]

Message-ID: <Z9BcO-CEDHqegZvD@gourry-fedora-PF4VCD3F>
Date: Tue, 11 Mar 2025 11:52:27 -0400
From: Gregory Price <gourry@...rry.net>
To: Yunjeong Mun <yunjeong.mun@...com>
Cc: kernel_team@...ynix.com, Joshua Hahn <joshua.hahnjy@...il.com>,
	harry.yoo@...cle.com, ying.huang@...ux.alibaba.com,
	gregkh@...uxfoundation.org, rakie.kim@...com,
	akpm@...ux-foundation.org, rafael@...nel.org, lenb@...nel.org,
	dan.j.williams@...el.com, Jonathan.Cameron@...wei.com,
	dave.jiang@...el.com, horen.chuang@...ux.dev, hannes@...xchg.org,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
	linux-mm@...ck.org, kernel-team@...a.com,
	Honggyu Kim <honggyu.kim@...com>
Subject: Re: [PATCH 2/2 v6] mm/mempolicy: Don't create weight sysfs for
 memoryless nodes

On Tue, Mar 11, 2025 at 06:51:45PM +0900, Yunjeong Mun wrote:
> Hi Gregory, thanks for kind explanation.
> 
> We believe our propsed hot plug patch should be added as a hot-fix to v6.14, 
> because it can be addressed independently of auto-configuring feature.
> Rakie will send v2 patch soon.
> 

I think having the answer to at least the following question documented
is needed.  I'll wait for v2 to do another review.

> > 2) We need to clearly define what the weight of a node will be when
> >    in manual mode and a node goes (memory -> no memory -> memory)
> >    a) does it retain it's old, manually set weight?
> >    b) does it revert to 1?
> > 

~Gregory