netdev - Re: [RFC net-next 02/13] net: page_pool: avoid touching slow on the fastpath

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Message-ID: <d1923d62-ced4-dc16-ccee-bcfff78ccfa7@kernel.org>
Date: Thu, 17 Aug 2023 11:32:11 +0200
From: Jesper Dangaard Brouer <hawk@...nel.org>
To: Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org
Cc: hawk@...nel.org, ilias.apalodimas@...aro.org,
 aleksander.lobakin@...el.com, linyunsheng@...wei.com, almasrymina@...gle.com
Subject: Re: [RFC net-next 02/13] net: page_pool: avoid touching slow on the
 fastpath



On 17/08/2023 01.42, Jakub Kicinski wrote:
> To fully benefit from previous commit add one byte of state
> in the first cache line recording if we need to look at
> the slow part.
> 
> The packing isn't all that impressive right now, we create
> a 7B hole. I'm expecting Olek's rework will reshuffle this,
> anyway.
> 
> Signed-off-by: Jakub Kicinski<kuba@...nel.org>
> ---
>   include/net/page_pool/types.h | 2 ++
>   net/core/page_pool.c          | 4 +++-
>   2 files changed, 5 insertions(+), 1 deletion(-)

As followup to 1/13 LGTM

Acked-by: Jesper Dangaard Brouer <hawk@...nel.org>