Re: [PATCH 4/4] block, bfq: update pos_root for idle bfq_queue in bfq_bfqq_move()

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To: Jan Kara <jack@xxxxxxx>
Subject: Re: [PATCH 4/4] block, bfq: update pos_root for idle bfq_queue in bfq_bfqq_move()
From: "yukuai (C)" <yukuai3@xxxxxxxxxx>
Date: Fri, 7 Jan 2022 09:04:45 +0800
Cc: <tj@xxxxxxxxxx>, <axboe@xxxxxxxxx>, <paolo.valente@xxxxxxxxxx>, <fchecconi@xxxxxxxxx>, <avanzini.arianna@xxxxxxxxx>, <cgroups@xxxxxxxxxxxxxxx>, <linux-block@xxxxxxxxxxxxxxx>, <linux-kernel@xxxxxxxxxxxxxxx>, <yi.zhang@xxxxxxxxxx>
In-reply-to: <20220103153732.pcfsmadzlqqroxcj@quack3>
References: <20211221032135.878550-1-yukuai3@huawei.com> <20211221032135.878550-5-yukuai3@huawei.com> <20211221115001.GD24748@quack2.suse.cz> <6ca1e924-47fa-b94e-598c-69a9549eb68e@huawei.com> <20211222141722.GC685@quack2.suse.cz> <9743fc5a-f3f0-a23a-5d21-0c04c90e90e1@huawei.com> <5b42943f-4a8e-c4ec-05da-57e36cc14113@huawei.com> <20220103153732.pcfsmadzlqqroxcj@quack3>
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在 2022/01/03 23:37, Jan Kara 写道:

OK, thanks for following up on this. So do I understand you correctly that
the problem with empty bfqq being in pos_tree does not exist in current
upstream kernel?


Yes, I had this patch removed in v2 patchset.

Thanks,
Kuai

References:
- [PATCH 0/4] block, bfq: minor cleanup and fix
  - From: Yu Kuai
- [PATCH 4/4] block, bfq: update pos_root for idle bfq_queue in bfq_bfqq_move()
  - From: Yu Kuai
- Re: [PATCH 4/4] block, bfq: update pos_root for idle bfq_queue in bfq_bfqq_move()
  - From: Jan Kara
- Re: [PATCH 4/4] block, bfq: update pos_root for idle bfq_queue in bfq_bfqq_move()
  - From: yukuai (C)
- Re: [PATCH 4/4] block, bfq: update pos_root for idle bfq_queue in bfq_bfqq_move()
  - From: Jan Kara
- Re: [PATCH 4/4] block, bfq: update pos_root for idle bfq_queue in bfq_bfqq_move()
  - From: yukuai (C)
- Re: [PATCH 4/4] block, bfq: update pos_root for idle bfq_queue in bfq_bfqq_move()
  - From: yukuai (C)
- Re: [PATCH 4/4] block, bfq: update pos_root for idle bfq_queue in bfq_bfqq_move()
  - From: Jan Kara

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