From: Pankaj Raghav <pankydev8@gmail.com>
To: Christoph Hellwig <hch@lst.de>
Cc: Jens Axboe <axboe@kernel.dk>,
Jeffle Xu <jefflexu@linux.alibaba.com>,
Ming Lei <ming.lei@redhat.com>,
Damien Le Moal <Damien.LeMoal@wdc.com>,
Keith Busch <kbusch@kernel.org>, Sagi Grimberg <sagi@grimberg.me>,
"Wunderlich, Mark" <mark.wunderlich@intel.com>,
"Vasudevan, Anil" <anil.vasudevan@intel.com>,
linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-nvme@lists.infradead.org,
Pankaj Raghav <p.raghav@samsung.com>
Subject: Re: [PATCH 14/16] block: switch polling to be bio based
Date: Fri, 15 Oct 2021 10:30:26 +0200 [thread overview]
Message-ID: <20211015083026.3geaix6r6kcnncu7@quentin> (raw)
In-Reply-To: <20211012111226.760968-15-hch@lst.de>
On Tue, Oct 12, 2021 at 01:12:24PM +0200, Christoph Hellwig wrote:
> diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
> index 2b80c98fc373e..2a8689e949b4c 100644
> --- a/include/linux/blkdev.h
> +++ b/include/linux/blkdev.h
> @@ -25,6 +25,7 @@ struct request;
> struct sg_io_hdr;
> struct blkcg_gq;
> struct blk_flush_queue;
> +struct kiocb;
> struct pr_ops;
> struct rq_qos;
> struct blk_queue_stats;
> @@ -550,7 +551,7 @@ static inline unsigned int blk_queue_depth(struct request_queue *q)
>
> extern int blk_register_queue(struct gendisk *disk);
> extern void blk_unregister_queue(struct gendisk *disk);
> -blk_qc_t submit_bio_noacct(struct bio *bio);
> +void submit_bio_noacct(struct bio *bio);
>
> extern int blk_lld_busy(struct request_queue *q);
> extern void blk_queue_split(struct bio **);
> @@ -568,7 +569,8 @@ blk_status_t errno_to_blk_status(int errno);
> #define BLK_POLL_ONESHOT (1 << 0)
> /* do not sleep to wait for the expected completion time */
> #define BLK_POLL_NOSLEEP (1 << 1)
Minor comment: Could we also have a flag #define BLK_POLL_SPIN 0?
It can improve the readability from the caller side instead of having
just a 0 to indicate spinning.
Regards,
Pankaj Raghav
next prev parent reply other threads:[~2021-10-15 8:30 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-12 11:12 switch block layer polling to a bio based model v4 Christoph Hellwig
2021-10-12 11:12 ` [PATCH 01/16] direct-io: remove blk_poll support Christoph Hellwig
2021-10-13 10:42 ` Sagi Grimberg
2021-10-28 1:26 ` Chaitanya Kulkarni
2021-10-12 11:12 ` [PATCH 02/16] block: don't try to poll multi-bio I/Os in __blkdev_direct_IO Christoph Hellwig
2021-10-12 11:12 ` [PATCH 03/16] iomap: don't try to poll multi-bio I/Os in __iomap_dio_rw Christoph Hellwig
2021-10-12 11:12 ` [PATCH 04/16] io_uring: fix a layering violation in io_iopoll_req_issued Christoph Hellwig
2021-10-12 11:12 ` [PATCH 05/16] blk-mq: factor out a blk_qc_to_hctx helper Christoph Hellwig
2021-10-12 11:12 ` [PATCH 06/16] blk-mq: factor out a "classic" poll helper Christoph Hellwig
2021-10-12 11:12 ` [PATCH 07/16] blk-mq: remove blk_qc_t_to_tag and blk_qc_t_is_internal Christoph Hellwig
2021-10-12 11:12 ` [PATCH 08/16] blk-mq: remove blk_qc_t_valid Christoph Hellwig
2021-10-12 11:12 ` [PATCH 09/16] block: replace the spin argument to blk_iopoll with a flags argument Christoph Hellwig
2021-10-13 10:44 ` Sagi Grimberg
2021-10-12 11:12 ` [PATCH 10/16] io_uring: don't sleep when polling for I/O Christoph Hellwig
2021-10-13 10:45 ` Sagi Grimberg
2021-10-12 11:12 ` [PATCH 11/16] block: rename REQ_HIPRI to REQ_POLLED Christoph Hellwig
2021-10-13 10:45 ` Sagi Grimberg
2021-10-12 11:12 ` [PATCH 12/16] block: use SLAB_TYPESAFE_BY_RCU for the bio slab Christoph Hellwig
2021-10-12 11:12 ` [PATCH 13/16] block: define 'struct bvec_iter' as packed Christoph Hellwig
2021-10-12 11:12 ` [PATCH 14/16] block: switch polling to be bio based Christoph Hellwig
2021-10-13 9:59 ` Ming Lei
2021-10-13 10:45 ` Sagi Grimberg
2021-10-15 8:30 ` Pankaj Raghav [this message]
2021-10-15 13:24 ` Christoph Hellwig
2021-11-03 7:11 ` chenxiang (M)
2021-11-03 7:22 ` Christoph Hellwig
2021-11-03 8:05 ` chenxiang (M)
2021-10-12 11:12 ` [PATCH 15/16] block: don't allow writing to the poll queue attribute Christoph Hellwig
2021-10-12 11:12 ` [PATCH 16/16] nvme-multipath: enable polled I/O Christoph Hellwig
2021-10-13 10:46 ` Sagi Grimberg
2021-10-12 14:47 ` switch block layer polling to a bio based model v4 Jens Axboe
2021-10-12 14:57 ` Sagi Grimberg
2021-10-12 14:58 ` Jens Axboe
2021-10-12 15:09 ` Sagi Grimberg
2021-10-12 15:06 ` Christoph Hellwig
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