linux-kernel - Re: [RFC net-next v4 1/9] net: napi: Make napi_defer_hard

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: <20241008150833.4385ea50@kernel.org>
Date: Tue, 8 Oct 2024 15:08:33 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Joe Damato <jdamato@...tly.com>
Cc: netdev@...r.kernel.org, mkarsten@...terloo.ca, skhawaja@...gle.com,
 sdf@...ichev.me, bjorn@...osinc.com, amritha.nambiar@...el.com,
 sridhar.samudrala@...el.com, willemdebruijn.kernel@...il.com, "David S.
 Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Paolo
 Abeni <pabeni@...hat.com>, Jonathan Corbet <corbet@....net>, Jiri Pirko
 <jiri@...nulli.us>, Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
 Lorenzo Bianconi <lorenzo@...nel.org>, Kory Maincent
 <kory.maincent@...tlin.com>, Johannes Berg <johannes.berg@...el.com>, Breno
 Leitao <leitao@...ian.org>, Alexander Lobakin
 <aleksander.lobakin@...el.com>, linux-doc@...r.kernel.org (open
 list:DOCUMENTATION), linux-kernel@...r.kernel.org (open list)
Subject: Re: [RFC net-next v4 1/9] net: napi: Make napi_defer_hard_irqs
 per-NAPI

On Tue,  1 Oct 2024 23:52:32 +0000 Joe Damato wrote:
> @@ -377,6 +377,7 @@ struct napi_struct {
>  	struct list_head	dev_list;
>  	struct hlist_node	napi_hash_node;
>  	int			irq;
> +	u32			defer_hard_irqs;

This will be read on every unmasking, let's put it above 
the "/* control-path-only fields follow */" comment