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

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Message-ID: <c475a980-50fb-e966-80a0-d9ccca9435d4@huawei.com>
Date:   Tue, 23 May 2023 16:16:58 +0800
From:   Yunsheng Lin <linyunsheng@...wei.com>
To:     Jesper Dangaard Brouer <jbrouer@...hat.com>,
        Ilias Apalodimas <ilias.apalodimas@...aro.org>
CC:     <brouer@...hat.com>, <davem@...emloft.net>, <kuba@...nel.org>,
        <pabeni@...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 15:08, Jesper Dangaard Brouer wrote:
 > On 23/05/2023 04.13, Yunsheng Lin wrote:
>> Do you still working on optimizing the page_pool destroy
>> process? If not, do you mind if I carry it on based on
>> that?
> 
> I'm still working on improving the page_pool destroy process.
> I prefer to do the implementation myself.

Sure, let me know if you want a hand for that.

> 
> I've not submitted another version, because I'm currently using the
> workqueue to detect/track a memory leak in mlx5.
> 
> The mlx5 driver combined with XDP redirect is leaking memory, and will
> eventually lead to OOM.  The workqueue warning doesn't point to the
> actual problem, but it makes is easier to notice that there is a problem.
> 
> --Jesper
> 
> .
>