atomic queue limit updates for stackable devices v2 · Christoph Hellwig <hch@lst.de> · 2024-02-26
[PATCH 01/16] block: add a queue_limits_set helper · Christoph Hellwig <hch@lst.de> · 2024-02-26
[PATCH 02/16] block: add a queue_limits_stack_bdev helper · Christoph Hellwig <hch@lst.de> · 2024-02-26
[PATCH 03/16] dm: use queue_limits_set · Christoph Hellwig <hch@lst.de> · 2024-02-26
[PATCH 04/16] md: add queue limit helpers · Christoph Hellwig <hch@lst.de> · 2024-02-26
Re: [PATCH 04/16] md: add queue limit helpers · Yu Kuai <hidden> · 2024-02-26
Re: [PATCH 04/16] md: add queue limit helpers · Christoph Hellwig <hch@lst.de> · 2024-02-27
Re: [PATCH 04/16] md: add queue limit helpers · Yu Kuai <hidden> · 2024-02-28
[PATCH 05/16] md/raid0: use the atomic queue limit update APIs · Christoph Hellwig <hch@lst.de> · 2024-02-26
[PATCH 06/16] md/raid1: use the atomic queue limit update APIs · Christoph Hellwig <hch@lst.de> · 2024-02-26
Re: [PATCH 06/16] md/raid1: use the atomic queue limit update APIs · Yu Kuai <hidden> · 2024-02-26
Re: [PATCH 06/16] md/raid1: use the atomic queue limit update APIs · Christoph Hellwig <hch@lst.de> · 2024-02-27
Re: [PATCH 06/16] md/raid1: use the atomic queue limit update APIs · Song Liu <song@kernel.org> · 2024-02-27
Re: [PATCH 06/16] md/raid1: use the atomic queue limit update APIs · Yu Kuai <hidden> · 2024-02-28
[PATCH 07/16] md/raid10: use the atomic queue limit update APIs · Christoph Hellwig <hch@lst.de> · 2024-02-26
[PATCH 08/16] md/raid5: use the atomic queue limit update APIs · Christoph Hellwig <hch@lst.de> · 2024-02-26
[PATCH 09/16] block: remove disk_stack_limits · Christoph Hellwig <hch@lst.de> · 2024-02-26
[PATCH 10/16] drbd: pass the max_hw_sectors limit to blk_alloc_disk · Christoph Hellwig <hch@lst.de> · 2024-02-26
[PATCH 11/16] drbd: refactor drbd_reconsider_queue_parameters · Christoph Hellwig <hch@lst.de> · 2024-02-26
[PATCH 12/16] drbd: refactor the backing dev max_segments calculation · Christoph Hellwig <hch@lst.de> · 2024-02-26
[PATCH 13/16] drbd: merge drbd_setup_queue_param into drbd_reconsider_queue_parameters · Christoph Hellwig <hch@lst.de> · 2024-02-26
[PATCH 14/16] drbd: don't set max_write_zeroes_sectors in decide_on_discard_support · Christoph Hellwig <hch@lst.de> · 2024-02-26
[PATCH 15/16] drbd: split out a drbd_discard_supported helper · Christoph Hellwig <hch@lst.de> · 2024-02-26
[PATCH 16/16] drbd: atomically update queue limits in drbd_reconsider_queue_parameters · Christoph Hellwig <hch@lst.de> · 2024-02-26

Re: [PATCH 04/16] md: add queue limit helpers

From: Christoph Hellwig <hch@lst.de>
Date: 2024-02-27 14:36:29
Also in: dm-devel, linux-block

On Mon, Feb 26, 2024 at 07:38:17PM +0800, Yu Kuai wrote:

Any reason to use blk_mq_freeze/unfreeze_queue ? I don't think this is
meaningful for raid, this only wait for IO submission, not IO done.

raid should already handle concurrent IO with reshape, so I think this
can just be removed.

We can't just change limits under the driver if I/Os are being sumitted.
That is one of the points of the whole queue limits exercises.

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