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@xxxxxxxxxx>
---
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@xxxxxxx>
Cheers,
Hannes
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