netdev - Re: [PATCH net-next 2/3] net: use llist for sd->defer

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Message-ID: <CAAVpQUB+paJuEwVV6gHBTmsTU6s9LJdEN_HUBkoS0WUk3NMZqA@mail.gmail.com>
Date: Sat, 27 Sep 2025 12:52:06 -0700
From: Kuniyuki Iwashima <kuniyu@...gle.com>
To: Eric Dumazet <edumazet@...gle.com>
Cc: "David S . Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, 
	Paolo Abeni <pabeni@...hat.com>, Simon Horman <horms@...nel.org>, 
	Willem de Bruijn <willemb@...gle.com>, netdev@...r.kernel.org, eric.dumazet@...il.com
Subject: Re: [PATCH net-next 2/3] net: use llist for sd->defer_list

On Fri, Sep 26, 2025 at 8:13 AM Eric Dumazet <edumazet@...gle.com> wrote:
>
> Get rid of sd->defer_lock and adopt llist operations.
>
> We optimize skb_attempt_defer_free() for the common case,
> where the packet is queued. Otherwise sd->defer_count
> is increasing, until skb_defer_free_flush() clears it.
>
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Reviewed-by: Kuniyuki Iwashima <kuniyu@...gle.com>