linux-kernel - Re: [PATCH v9 0/4] blk-throttle bugfix

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Date:   Mon, 12 Sep 2022 00:20:25 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     mkoutny@...e.com, tj@...nel.org, ming.lei@...hat.com,
        Yu Kuai <yukuai1@...weicloud.com>
Cc:     cgroups@...r.kernel.org, linux-block@...r.kernel.org,
        yukuai3@...wei.com, linux-kernel@...r.kernel.org,
        yi.zhang@...wei.com
Subject: Re: [PATCH v9 0/4] blk-throttle bugfix

On Mon, 29 Aug 2022 10:22:36 +0800, Yu Kuai wrote:
> From: Yu Kuai <yukuai3@...wei.com>
> 
> Changes in v9:
>  - renaming the flag BIO_THROTTLED to BIO_BPS_THROTTLED, and always
>  apply iops limit in path 1;
>  - add tag for patch 4
> Changes in v8:
>  - use a new solution in patch 1
>  - move cleanups to a separate patchset
>  - rename bytes/io_skipped to carryover_bytes/ios in patch 4
> Changes in v7:
>  - add patch 5 to improve handling of re-entered bio for bps limit
>  - as suggested by Tejun, add some comments
>  - sdd some Acked tag by Tejun
> Changes in v6:
>  - rename parameter in patch 3
>  - add comments and reviewed tag for patch 4
> 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
> 
> [...]

Applied, thanks!

[1/4] blk-throttle: fix that io throttle can only work for single bio
      commit: 320fb0f91e55ba248d4bad106b408e59099cfa89
[2/4] blk-throttle: prevent overflow while calculating wait time
      commit: 8d6bbaada2e0a65f9012ac4c2506460160e7237a
[3/4] blk-throttle: factor out code to calculate ios/bytes_allowed
      commit: 681cd46fff8cd81e387747c7850f2e730d3e0b74
[4/4] blk-throttle: fix io hung due to configuration updates
      commit: a880ae93e5b5bb5d8d5500077a391e3f5ec7715c

Best regards,
-- 
Jens Axboe