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From: Christoph Hellwig <hch@infradead.org>
To: Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@infradead.org>, linux-block@vger.kernel.org
Subject: Re: [PATCH 8/9] io_uring: utilize the io_batch infrastructure for more efficient polled IO
Date: Fri, 15 Oct 2021 21:29:57 -0700	[thread overview]
Message-ID: <YWpVRXYGuN8mA7nH@infradead.org> (raw)
In-Reply-To: <c80263c8-f6d6-e3d9-058f-26d64c7e5acc@kernel.dk>

On Thu, Oct 14, 2021 at 12:14:19PM -0600, Jens Axboe wrote:
> > Either way this should be commented as right now it looks pretty
> > arbitrary.
> 
> I got rid of this and added a dev_id kind of cookie that gets matched
> on batched addition.

Thinking about this a bit more.  I don't think we need to differenciate
devices, just complete handlers.  That is everything using the same
->complete_batch handler could go onto the same list.  Which means
different nvme devices can be polled together.  So I think we can
just check the complete/complete_batch handler and be done with it.
The big benefit besides saving a field is that this is pretty much
self-explaining.

  reply	other threads:[~2021-10-16  4:30 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-13 16:54 [PATCHSET v2 0/9] Batched completions Jens Axboe
2021-10-13 16:54 ` [PATCH 1/9] block: define io_batch structure Jens Axboe
2021-10-14  5:45   ` Christoph Hellwig
2021-10-14 15:50     ` Jens Axboe
2021-10-14 16:06       ` Christoph Hellwig
2021-10-14 18:14         ` Jens Axboe
2021-10-13 16:54 ` [PATCH 2/9] block: add a struct io_batch argument to fops->iopoll() Jens Axboe
2021-10-13 16:54 ` [PATCH 3/9] sbitmap: add helper to clear a batch of tags Jens Axboe
2021-10-13 16:54 ` [PATCH 4/9] sbitmap: test bit before calling test_and_set_bit() Jens Axboe
2021-10-14  7:20   ` Hannes Reinecke
2021-10-14 13:01     ` Jens Axboe
2021-10-14 18:41   ` Bart Van Assche
2021-10-13 16:54 ` [PATCH 5/9] block: add support for blk_mq_end_request_batch() Jens Axboe
2021-10-14  7:32   ` Christoph Hellwig
2021-10-14 15:27     ` Jens Axboe
2021-10-13 16:54 ` [PATCH 6/9] nvme: add support for batched completion of polled IO Jens Axboe
2021-10-14  7:43   ` Christoph Hellwig
2021-10-14 15:30     ` Jens Axboe
2021-10-14 15:34       ` Jens Axboe
2021-10-14 16:07       ` Christoph Hellwig
2021-10-14 16:11         ` Jens Axboe
2021-10-13 16:54 ` [PATCH 7/9] block: assign batch completion handler in blk_poll() Jens Axboe
2021-10-14  7:48   ` Christoph Hellwig
2021-10-14 15:43     ` Jens Axboe
2021-10-13 16:54 ` [PATCH 8/9] io_uring: utilize the io_batch infrastructure for more efficient polled IO Jens Axboe
2021-10-14  8:03   ` Christoph Hellwig
2021-10-14 15:45     ` Jens Axboe
2021-10-14 16:08       ` Christoph Hellwig
2021-10-14 18:14         ` Jens Axboe
2021-10-16  4:29           ` Christoph Hellwig [this message]
2021-10-16 14:33             ` Jens Axboe
2021-10-13 16:54 ` [PATCH 9/9] nvme: wire up completion batching for the IRQ path Jens Axboe
2021-10-14  7:53   ` Christoph Hellwig
2021-10-14 15:49     ` Jens Axboe
  -- strict thread matches above, loose matches on Subject: below --
2021-10-12 18:17 [PATCHSET 0/9] Batched completions Jens Axboe
2021-10-12 18:17 ` [PATCH 8/9] io_uring: utilize the io_batch infrastructure for more efficient polled IO Jens Axboe

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