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From: Eric Dumazet <eric.dumazet@gmail.com>
To: Yunsheng Lin <linyunsheng@huawei.com>,
	Eric Dumazet <eric.dumazet@gmail.com>,
	Cong Wang <xiyou.wangcong@gmail.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>,
	Jiri Pirko <jiri@resnulli.us>, David Miller <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Linux Kernel Network Developers <netdev@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	linuxarm@huawei.com
Subject: Re: [PATCH net-next] net: sch_generic: aviod concurrent reset and enqueue op for lockless qdisc
Date: Thu, 3 Sep 2020 09:24:50 +0200	[thread overview]
Message-ID: <1c01f9e0-fde4-a8ee-caa3-598738a9a98d@gmail.com> (raw)
In-Reply-To: <041539d7-fb42-908d-5638-49ca51d758f1@huawei.com>



On 9/2/20 6:14 PM, Yunsheng Lin wrote:

> 
> It seems semantics for some_qdisc_is_busy() is changed, which does not only do
> the checking, but also do the reseting?

Yes, obviously, we would have to rename to a better name.

> 
> Also, qdisc_reset() could be called multi times for the same qdisc if some_qdisc_is_busy()
> return true multi times?

This should not matter, qdisc_reset() can be called multiple times,
as we also call it from qdisc_destroy() anyway.


  reply	other threads:[~2020-09-03  7:25 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-01  0:55 Yunsheng Lin
2020-09-01  6:48 ` Eric Dumazet
2020-09-01  7:27   ` Yunsheng Lin
2020-09-01 18:34     ` David Miller
2020-09-02  1:43       ` Yunsheng Lin
2020-09-01 18:24 ` Cong Wang
2020-09-02  1:42   ` Yunsheng Lin
2020-09-02  4:41     ` Cong Wang
2020-09-02  6:34       ` Yunsheng Lin
2020-09-02  7:32         ` Eric Dumazet
2020-09-02  8:14           ` Yunsheng Lin
2020-09-02  9:20             ` Eric Dumazet
2020-09-03  1:14               ` Yunsheng Lin
2020-09-03  7:24                 ` Eric Dumazet [this message]
2020-09-04  8:10                   ` Yunsheng Lin
2020-09-03  0:35         ` Cong Wang
2020-09-03  1:21           ` Yunsheng Lin
2020-09-03  1:48             ` Cong Wang
2020-09-03  2:22               ` Yunsheng Lin
2020-09-03  2:53                 ` Cong Wang
2020-09-04  1:30                   ` John Fastabend
2020-09-04  8:08                     ` Yunsheng Lin
2020-09-06  8:52 ` [net] 6fd0d0dede: hwsim.ap_ht40_5ghz_switch.fail kernel test robot

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