linux-kernel - Re: [PATCH -next v5 0/8] bugfix and cleanup for blk-throttle

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Date:   Fri, 17 Jun 2022 09:15:05 +0800
From:   Yu Kuai <yukuai3@...wei.com>
To:     <tj@...nel.org>, <mkoutny@...e.com>, <axboe@...nel.dk>,
        <ming.lei@...hat.com>
CC:     <cgroups@...r.kernel.org>, <linux-block@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <yi.zhang@...wei.com>
Subject: Re: [PATCH -next v5 0/8] bugfix and cleanup for blk-throttle

Hi, Tejun (and Ming, Michal)

Can you guys take a look at this patchset?

Thanks

在 2022/06/09 8:59, Yu Kuai 写道:
> 在 2022/06/02 19:14, Yu Kuai 写道:
>> 在 2022/05/28 14:43, Yu Kuai 写道:
>>> Changes in v5:
>>>   - add comments in patch 4
>>>   - clear bytes/io_skipped in throtl_start_new_slice_with_credit() in
>>>   patch 4
>>>   - and cleanup patches 5-8
>>> Changes in v4:
>>>   - add reviewed-by tag for patch 1
>>>   - add patch 2,3
>>>   - use a different way to fix io hung in patch 4
>>> Changes in v3:
>>>   - fix a check in patch 1
>>>   - fix link err in patch 2 on 32-bit platform
>>>   - handle overflow in patch 2
>>> Changes in v2:
>>>   - use a new solution suggested by Ming
>>>   - change the title of patch 1
>>>   - add patch 2
>>>
>>> Patch 1 fix that blk-throttle can't work if multiple bios are throttle,
>>> Patch 2 fix overflow while calculating wait time
>>> Patch 3,4 fix io hung due to configuration updates.
>>> Patch 5-8 are cleanup patches, there are no functional changes, just
>>> some places that I think can be optimized during code review.
>>
>> friendly ping ...
> 
> friendly ping ...
> 
> I'll resend this patchset soon if there are still no response.
> 
> Thanks,
> Kuai
>>>
>>> Previous version:
>>> v1: 
>>> https://lore.kernel.org/all/20220517134909.2910251-1-yukuai3@huawei.com/
>>> v2: 
>>> https://lore.kernel.org/all/20220518072751.1188163-1-yukuai3@huawei.com/
>>> v3: 
>>> https://lore.kernel.org/all/20220519085811.879097-1-yukuai3@huawei.com/
>>> v4: 
>>> https://lore.kernel.org/all/20220523082633.2324980-1-yukuai3@huawei.com/
>>>
>>> Yu Kuai (8):
>>>    blk-throttle: fix that io throttle can only work for single bio
>>>    blk-throttle: prevent overflow while calculating wait time
>>>    blk-throttle: factor out code to calculate ios/bytes_allowed
>>>    blk-throttle: fix io hung due to config updates
>>>    blk-throttle: use 'READ/WRITE' instead of '0/1'
>>>    blk-throttle: calling throtl_dequeue/enqueue_tg in pairs
>>>    blk-throttle: cleanup tg_update_disptime()
>>>    blk-throttle: clean up flag 'THROTL_TG_PENDING'
>>>
>>>   block/blk-throttle.c | 158 +++++++++++++++++++++++++++++--------------
>>>   block/blk-throttle.h |  16 +++--
>>>   2 files changed, 120 insertions(+), 54 deletions(-)
>>>