linux-kernel - Re: [PATCH net] page_pool: fix inconsistency for page_pool_ring

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Message-ID: <e36a2091-82be-6071-245e-0cdd068ff857@huawei.com>
Date:   Tue, 23 May 2023 10:34:23 +0800
From:   Yunsheng Lin <linyunsheng@...wei.com>
To:     Jakub Kicinski <kuba@...nel.org>
CC:     Ilias Apalodimas <ilias.apalodimas@...aro.org>,
        Jesper Dangaard Brouer <jbrouer@...hat.com>,
        <davem@...emloft.net>, <pabeni@...hat.com>, <brouer@...hat.com>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        John Fastabend <john.fastabend@...il.com>
Subject: Re: [PATCH net] page_pool: fix inconsistency for
 page_pool_ring_[un]lock()

On 2023/5/23 10:22, Jakub Kicinski wrote:
> On Tue, 23 May 2023 10:13:14 +0800 Yunsheng Lin wrote:
>> On 2023/5/22 19:45, Ilias Apalodimas wrote:
>>>> Thanks for spotting and fixing this! :-)  
>>
>> It was spotted when implementing the below patch:)
>>
>> https://patchwork.kernel.org/project/netdevbpf/patch/168269857929.2191653.13267688321246766547.stgit@firesoul/#25325801
>>
>> Do you still working on optimizing the page_pool destroy
>> process? If not, do you mind if I carry it on based on
>> that?
> 
> Not sure what you mean, this patch is a fix and the destroy
> optimizations where targeted at net-next. Fix goes in first,
> and then after the tree merge on Thu the work in net-next can 
> progress.

Sure, it will be sent as RFC if this patch is not merged to
net-next yet:)