linux-kernel - Re: [PATCH 6.6 3/3] net: Allow to use SMP threads for backlog NAPI.

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: <20260119082534.1f705011@kernel.org>
Date: Mon, 19 Jan 2026 08:25:34 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: wen.yang@...ux.dev
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org,
 linux-kernel@...r.kernel.org, Sebastian Andrzej Siewior
 <bigeasy@...utronix.de>, Paolo Abeni <pabeni@...hat.com>
Subject: Re: [PATCH 6.6 3/3] net: Allow to use SMP threads for backlog NAPI.

On Mon, 19 Jan 2026 00:15:46 +0800 wen.yang@...ux.dev wrote:
> From: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
> 
> commit dad6b97702639fba27a2bd3e986982ad6f0db3a7 upstream.
> 
> Backlog NAPI is a per-CPU NAPI struct only (with no device behind it)
> used by drivers which don't do NAPI them self, RPS and parts of the
> stack which need to avoid recursive deadlocks while processing a packet.

This is a rather large change to backport into LTS.