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nvme: wire up async polling for io passthrough commands
Store a cookie during submission, and use that to implement completion-polling inside the ->uring_cmd_iopoll handler. This handler makes use of existing bio poll facility. Signed-off-by: Kanchan Joshi <[email protected]> Signed-off-by: Anuj Gupta <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
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