linux-kernel - Re: [PATCH] net/smc: Optimize the search method of reused buf

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Message-ID: <8a0e0ee5-3db1-34c3-d8e7-1d1639c4b425@huawei.com>
Date: Fri, 1 Nov 2024 11:11:20 +0800
From: Li Qiang <liqiang64@...wei.com>
To: Jakub Kicinski <kuba@...nel.org>
CC: <wenjia@...ux.ibm.com>, <jaka@...ux.ibm.com>, <alibuda@...ux.alibaba.com>,
	<tonylu@...ux.alibaba.com>, <guwen@...ux.alibaba.com>,
	<linux-s390@...r.kernel.org>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <luanjianhai@...wei.com>,
	<zhangxuzhou4@...wei.com>, <dengguangxing@...wei.com>, <gaochao24@...wei.com>
Subject: Re: [PATCH] net/smc: Optimize the search method of reused buf_desc



在 2024/11/1 10:06, Jakub Kicinski 写道:
> On Tue, 29 Oct 2024 14:54:15 +0800 liqiang wrote:
>> We create a lock-less link list for the currently 
>> idle reusable smc_buf_desc.
>>
>> When the 'used' filed mark to 0, it is added to 
>> the lock-less linked list. 
>>
>> When a new connection is established, a suitable 
>> element is obtained directly, which eliminates the 
>> need for traversal and search, and does not require 
>> locking resource.
>>
>> A lock-free linked list is a linked list that uses 
>> atomic operations to optimize the producer-consumer model.
> 
> Not sure what the story here is but the patch does not apply to net-next
> 

Thanks for the reminder.
I will resend the patch to adapt to net-next later.

-- 
Cheers,
Li Qiang