From: Hannes Reinecke <hare@suse.de>
To: Ming Lei <ming.lei@redhat.com>, Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org,
Jeffle Xu <jefflexu@linux.alibaba.com>,
Mike Snitzer <snitzer@redhat.com>,
dm-devel@redhat.com
Subject: Re: [PATCH V3 06/13] block: add new field into 'struct bvec_iter'
Date: Wed, 24 Mar 2021 16:33:08 +0100 [thread overview]
Message-ID: <b433eb9e-3d70-8791-93c5-6084bb3a76ed@suse.de> (raw)
In-Reply-To: <20210324121927.362525-7-ming.lei@redhat.com>
On 3/24/21 1:19 PM, Ming Lei wrote:
> There is a hole at the end of 'struct bvec_iter', so put a new field
> here and we can save cookie returned from submit_bio() here for
> supporting bio based polling.
>
> This way can avoid to extend bio unnecessarily.
>
> Meantime add two helpers to get/set this field.
>
> Signed-off-by: Ming Lei <ming.lei@redhat.com>
> ---
> block/blk.h | 10 ++++++++++
> include/linux/bvec.h | 8 ++++++++
> 2 files changed, 18 insertions(+)
>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cheers,
Hannes
--
Dr. Hannes Reinecke Kernel Storage Architect
hare@suse.de +49 911 74053 688
SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg
HRB 36809 (AG Nürnberg), Geschäftsführer: Felix Imendörffer
WARNING: multiple messages have this Message-ID (diff)
From: Hannes Reinecke <hare@suse.de>
To: Ming Lei <ming.lei@redhat.com>, Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org,
Jeffle Xu <jefflexu@linux.alibaba.com>,
dm-devel@redhat.com, Mike Snitzer <snitzer@redhat.com>
Subject: Re: [dm-devel] [PATCH V3 06/13] block: add new field into 'struct bvec_iter'
Date: Wed, 24 Mar 2021 16:33:08 +0100 [thread overview]
Message-ID: <b433eb9e-3d70-8791-93c5-6084bb3a76ed@suse.de> (raw)
In-Reply-To: <20210324121927.362525-7-ming.lei@redhat.com>
On 3/24/21 1:19 PM, Ming Lei wrote:
> There is a hole at the end of 'struct bvec_iter', so put a new field
> here and we can save cookie returned from submit_bio() here for
> supporting bio based polling.
>
> This way can avoid to extend bio unnecessarily.
>
> Meantime add two helpers to get/set this field.
>
> Signed-off-by: Ming Lei <ming.lei@redhat.com>
> ---
> block/blk.h | 10 ++++++++++
> include/linux/bvec.h | 8 ++++++++
> 2 files changed, 18 insertions(+)
>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cheers,
Hannes
--
Dr. Hannes Reinecke Kernel Storage Architect
hare@suse.de +49 911 74053 688
SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg
HRB 36809 (AG Nürnberg), Geschäftsführer: Felix Imendörffer
--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel
next prev parent reply other threads:[~2021-03-24 15:34 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-24 12:19 [PATCH V3 00/13] block: support bio based io polling Ming Lei
2021-03-24 12:19 ` [dm-devel] " Ming Lei
2021-03-24 12:19 ` [PATCH V3 01/13] block: add helper of blk_queue_poll Ming Lei
2021-03-24 12:19 ` [dm-devel] " Ming Lei
2021-03-24 13:19 ` Hannes Reinecke
2021-03-24 13:19 ` [dm-devel] " Hannes Reinecke
2021-03-24 17:54 ` Christoph Hellwig
2021-03-24 17:54 ` [dm-devel] " Christoph Hellwig
2021-03-25 1:56 ` JeffleXu
2021-03-25 1:56 ` [dm-devel] " JeffleXu
2021-03-24 12:19 ` [PATCH V3 02/13] block: add one helper to free io_context Ming Lei
2021-03-24 12:19 ` [dm-devel] " Ming Lei
2021-03-24 13:21 ` Hannes Reinecke
2021-03-24 13:21 ` [dm-devel] " Hannes Reinecke
2021-03-24 12:19 ` [PATCH V3 03/13] block: add helper of blk_create_io_context Ming Lei
2021-03-24 12:19 ` [dm-devel] " Ming Lei
2021-03-24 13:22 ` Hannes Reinecke
2021-03-24 13:22 ` [dm-devel] " Hannes Reinecke
2021-03-24 15:52 ` Keith Busch
2021-03-24 15:52 ` [dm-devel] " Keith Busch
2021-03-24 18:17 ` Christoph Hellwig
2021-03-24 18:17 ` [dm-devel] " Christoph Hellwig
2021-03-25 0:30 ` Ming Lei
2021-03-25 0:30 ` [dm-devel] " Ming Lei
2021-03-24 12:19 ` [PATCH V3 04/13] block: create io poll context for submission and poll task Ming Lei
2021-03-24 12:19 ` [dm-devel] " Ming Lei
2021-03-24 13:26 ` Hannes Reinecke
2021-03-24 13:26 ` [dm-devel] " Hannes Reinecke
2021-03-25 2:34 ` JeffleXu
2021-03-25 2:34 ` [dm-devel] " JeffleXu
2021-03-25 2:51 ` Ming Lei
2021-03-25 2:51 ` [dm-devel] " Ming Lei
2021-03-25 3:01 ` JeffleXu
2021-03-25 3:01 ` [dm-devel] " JeffleXu
2021-03-24 12:19 ` [PATCH V3 05/13] block: add req flag of REQ_POLL_CTX Ming Lei
2021-03-24 12:19 ` [dm-devel] " Ming Lei
2021-03-24 15:32 ` Hannes Reinecke
2021-03-24 15:32 ` [dm-devel] " Hannes Reinecke
2021-03-25 0:32 ` Ming Lei
2021-03-25 0:32 ` [dm-devel] " Ming Lei
2021-03-25 6:55 ` JeffleXu
2021-03-25 6:55 ` [dm-devel] " JeffleXu
2021-03-24 12:19 ` [PATCH V3 06/13] block: add new field into 'struct bvec_iter' Ming Lei
2021-03-24 12:19 ` [dm-devel] " Ming Lei
2021-03-24 15:33 ` Hannes Reinecke [this message]
2021-03-24 15:33 ` Hannes Reinecke
2021-03-24 12:19 ` [PATCH V3 07/13] block/mq: extract one helper function polling hw queue Ming Lei
2021-03-24 12:19 ` [dm-devel] " Ming Lei
2021-03-25 6:50 ` Hannes Reinecke
2021-03-25 6:50 ` [dm-devel] " Hannes Reinecke
2021-03-24 12:19 ` [PATCH V3 08/13] block: prepare for supporting bio_list via other link Ming Lei
2021-03-24 12:19 ` [dm-devel] " Ming Lei
2021-03-26 15:02 ` Hannes Reinecke
2021-03-26 15:02 ` [dm-devel] " Hannes Reinecke
2021-03-24 12:19 ` [PATCH V3 09/13] block: use per-task poll context to implement bio based io polling Ming Lei
2021-03-24 12:19 ` [dm-devel] " Ming Lei
2021-03-25 6:34 ` JeffleXu
2021-03-25 6:34 ` [dm-devel] " JeffleXu
2021-03-25 8:05 ` Ming Lei
2021-03-25 8:05 ` [dm-devel] " Ming Lei
2021-03-25 9:18 ` JeffleXu
2021-03-25 9:18 ` [dm-devel] " JeffleXu
2021-03-25 9:56 ` Ming Lei
2021-03-25 9:56 ` [dm-devel] " Ming Lei
2021-03-24 12:19 ` [PATCH V3 10/13] blk-mq: limit hw queues to be polled in each blk_poll() Ming Lei
2021-03-24 12:19 ` [dm-devel] " Ming Lei
2021-03-24 12:19 ` [PATCH V3 11/13] block: add queue_to_disk() to get gendisk from request_queue Ming Lei
2021-03-24 12:19 ` [dm-devel] " Ming Lei
2021-03-24 12:19 ` [PATCH V3 12/13] block: add poll_capable method to support bio-based IO polling Ming Lei
2021-03-24 12:19 ` [dm-devel] " Ming Lei
2021-03-24 12:19 ` [PATCH V3 13/13] dm: support IO polling for bio-based dm device Ming Lei
2021-03-24 12:19 ` [dm-devel] " Ming Lei
2021-03-25 18:45 ` Mike Snitzer
2021-03-25 18:45 ` [dm-devel] " Mike Snitzer
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