From: Mike Snitzer <[email protected]>
To: Jeffle Xu <[email protected]>
Cc: [email protected], [email protected],
[email protected], [email protected]
Subject: Re: [PATCH v2 3/6] block: add iopoll method to support bio-based IO polling
Date: Wed, 27 Jan 2021 12:14:42 -0500 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
On Mon, Jan 25 2021 at 7:13am -0500,
Jeffle Xu <[email protected]> wrote:
> ->poll_fn was introduced in commit ea435e1b9392 ("block: add a poll_fn
> callback to struct request_queue") to support bio-based queues such as
> nvme multipath, but was later removed in commit 529262d56dbe ("block:
> remove ->poll_fn").
>
> Given commit c62b37d96b6e ("block: move ->make_request_fn to struct
> block_device_operations") restore the possibility of bio-based IO
> polling support by adding an ->iopoll method to gendisk->fops.
> Elevate bulk of blk_mq_poll() implementation to blk_poll() and reduce
> blk_mq_poll() to blk-mq specific code that is called from blk_poll().
>
> Signed-off-by: Jeffle Xu <[email protected]>
> Suggested-by: Mike Snitzer <[email protected]>
Reviewed-by: Mike Snitzer <[email protected]>
next prev parent reply other threads:[~2021-01-27 17:18 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-25 12:13 [PATCH v2 0/6] dm: support IO polling for bio-based dm device Jeffle Xu
2021-01-25 12:13 ` [PATCH v2 1/6] block: move definition of blk_qc_t to types.h Jeffle Xu
2021-01-25 12:13 ` [PATCH v2 2/6] block: add queue_to_disk() to get gendisk from request_queue Jeffle Xu
2021-01-27 17:20 ` Mike Snitzer
2021-01-25 12:13 ` [PATCH v2 3/6] block: add iopoll method to support bio-based IO polling Jeffle Xu
2021-01-27 17:14 ` Mike Snitzer [this message]
2021-01-28 8:40 ` Christoph Hellwig
2021-01-28 11:52 ` JeffleXu
2021-01-28 14:36 ` Christoph Hellwig
2021-01-25 12:13 ` [PATCH v2 4/6] dm: always return BLK_QC_T_NONE for bio-based device Jeffle Xu
2021-01-25 12:13 ` [PATCH v2 5/6] block: add QUEUE_FLAG_POLL_CAP flag Jeffle Xu
2021-01-27 17:13 ` Mike Snitzer
2021-01-28 2:07 ` JeffleXu
2021-01-25 12:13 ` [PATCH v2 6/6] dm: support IO polling for bio-based dm device Jeffle Xu
2021-01-29 7:37 ` JeffleXu
2021-01-27 17:19 ` [PATCH v2 0/6] " Mike Snitzer
2021-01-28 3:06 ` JeffleXu
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