netdev - Re: [PATCH net-next 1/2] net-zerocopy: Reduce compound page head access

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Date:   Wed, 22 Mar 2023 14:40:28 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Coco Li <lixiaoyan@...gle.com>
Cc:     davem@...emloft.net, dsahern@...nel.org, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, shuah@...nel.org,
        asml.silence@...il.com, shakeelb@...gle.com,
        socketcan@...tkopp.net, viro@...iv.linux.org.uk,
        netdev@...r.kernel.org, inux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org
Subject: Re: [PATCH net-next 1/2] net-zerocopy: Reduce compound page head access

Hello:

This series was applied to netdev/net-next.git (main)
by Paolo Abeni <pabeni@...hat.com>:

On Tue, 21 Mar 2023 16:12:01 +0800 you wrote:
> From: Xiaoyan Li <lixiaoyan@...gle.com>
> 
> When compound pages are enabled, although the mm layer still
> returns an array of page pointers, a subset (or all) of them
> may have the same page head since a max 180kb skb can span 2
> hugepages if it is on the boundary, be a mix of pages and 1 hugepage,
> or fit completely in a hugepage. Instead of referencing page head
> on all page pointers, use page length arithmetic to only call page
> head when referencing a known different page head to avoid touching
> a cold cacheline.
> 
> [...]

Here is the summary with links:
  - [net-next,1/2] net-zerocopy: Reduce compound page head access
    https://git.kernel.org/netdev/net-next/c/593ef60c7445
  - [net-next,2/2] selftests/net: Add SHA256 computation over data sent in tcp_mmap
    https://git.kernel.org/netdev/net-next/c/5c5945dc695c

You are awesome, thank you!
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