linux-kernel - Re: [PATCH] vmstat: call fold_vm_zone_numa_events() before show per zone NUMA event

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: <20241030163527.cc9075a4aeb60448873aea73@linux-foundation.org>
Date: Wed, 30 Oct 2024 16:35:27 -0700
From: Andrew Morton <akpm@...ux-foundation.org>
To: mengensun88@...il.com
Cc: linux-mm@...ck.org, linux-kernel@...r.kernel.org,
 alexjlzheng@...cent.com, MengEn Sun <mengensun@...cent.com>
Subject: Re: [PATCH] vmstat: call fold_vm_zone_numa_events() before show per
 zone NUMA event

On Wed, 30 Oct 2024 16:37:37 +0800 mengensun88@...il.com wrote:

> From: MengEn Sun <mengensun@...cent.com>
> 
> NUMA events will only be folded from per-CPU statistics to per
> zone and global statistics when the user actually needs it.
> 
> So, we perform this folding when reading the /proc/zoneinfo

When proposing a fix, please always fully describe the
userspace-visible effects of that fix.

> Fixes: f19298b9516c ("mm/vmstat: convert NUMA statistics to basic NUMA counters")

Since v5.14.

The information which I requested will help others decide whether
earlier kernel versions should apply this fix.