Jens Axboe 1c2d2fff6d block: wire-up support for passthrough plugging
Add support for plugging in passthrough path. When plugging is enabled, the
requests are added to a plug instead of getting dispatched to the driver.
And when the plug is finished, the whole batch gets dispatched via
->queue_rqs which turns out to be more efficient. Otherwise dispatching
used to happen via ->queue_rq, one request at a time.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220511054750.20432-3-joshi.k@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-05-11 07:40:58 -06:00
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