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Re: [PATCH 21/26] block: move the poll flag to queue_limits
- To: Damien Le Moal <dlemoal@xxxxxxxxxx>
- From: Christoph Hellwig <hch@xxxxxx>
- Date: Wed, 12 Jun 2024 07:03:41 +0200
- Cc: Christoph Hellwig <hch@xxxxxx>, Jens Axboe <axboe@xxxxxxxxx>, Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>, Richard Weinberger <richard@xxxxxx>, Philipp Reisner <philipp.reisner@xxxxxxxxxx>, Lars Ellenberg <lars.ellenberg@xxxxxxxxxx>, Christoph Böhmwalder <christoph.boehmwalder@xxxxxxxxxx>, Josef Bacik <josef@xxxxxxxxxxxxxx>, Ming Lei <ming.lei@xxxxxxxxxx>, "Michael S. Tsirkin" <mst@xxxxxxxxxx>, Jason Wang <jasowang@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Alasdair Kergon <agk@xxxxxxxxxx>, Mike Snitzer <snitzer@xxxxxxxxxx>, Mikulas Patocka <mpatocka@xxxxxxxxxx>, Song Liu <song@xxxxxxxxxx>, Yu Kuai <yukuai3@xxxxxxxxxx>, Vineeth Vijayan <vneethv@xxxxxxxxxxxxx>, "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>, linux-m68k@xxxxxxxxxxxxxxxxxxxx, linux-um@xxxxxxxxxxxxxxxxxxx, drbd-dev@xxxxxxxxxxxxxxxx, nbd@xxxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, ceph-devel@xxxxxxxxxxxxxxx, virtualization@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-bcache@xxxxxxxxxxxxxxx, dm-devel@xxxxxxxxxxxxxxx, linux-raid@xxxxxxxxxxxxxxx, linux-mmc@xxxxxxxxxxxxxxx, linux-mtd@xxxxxxxxxxxxxxxxxxx, nvdimm@xxxxxxxxxxxxxxx, linux-nvme@xxxxxxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, linux-scsi@xxxxxxxxxxxxxxx, linux-block@xxxxxxxxxxxxxxx
- Delivery-date: Wed, 12 Jun 2024 05:03:53 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On Tue, Jun 11, 2024 at 05:21:07PM +0900, Damien Le Moal wrote:
> Kind of the same remark as for io_stat about this not really being a device
> feature. But I guess seeing "features" as a queue feature rather than just a
> device feature makes it OK to have poll (and io_stat) as a feature rather than
> a flag.
So unlike io_stat this very much is a feature and a feature only as
we don't even allow changing it. It purely exposes a device (or
rather driver) capability.
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