[dm-devel] [PATCH V3 04/13] block: create io poll context for submission and poll task

[Hannes Reinecke]

On 3/24/21 1:19 PM, Ming Lei wrote:
> Create per-task io poll context for both IO submission and poll task
> if the queue is bio based and supports polling.
> 
> This io polling context includes two queues:
> 
> 1) submission queue(sq) for storing HIPRI bio, written by submission task
>     and read by poll task.
> 2) polling queue(pq) for holding data moved from sq, only used in poll
>     context for running bio polling.
> 
> Following patches will support bio based io polling.
> 
> Signed-off-by: Ming Lei <ming.lei at redhat.com>
> ---
>   block/blk-core.c          | 71 ++++++++++++++++++++++++++++++++-------
>   block/blk-ioc.c           |  1 +
>   block/blk-mq.c            | 14 ++++++++
>   block/blk.h               | 45 +++++++++++++++++++++++++
>   include/linux/iocontext.h |  2 ++
>   5 files changed, 121 insertions(+), 12 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare at suse.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                Kernel Storage Architect
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