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Previously the rnbd client requested the rtrs to allocate rnbd_iu just after the rtrs_iu. So the rnbd client passes the size of rnbd_iu for rtrs_clt_open() and rtrs creates an array of rnbd_iu and rtrs_iu. For IO handling, rnbd_iu exists after the request because we pass the size of rnbd_iu when setting the tag-set. Therefore we do not use the rnbd_iu allocated by rtrs for IO handling. We only use the rnbd_iu allocated by rtrs when doing session initialization. Almost all rnbd_iu allocated by rtrs are wasted. By this patch the rnbd client does not request rnbd_iu allocation to rtrs but allocate it for itself when doing session initialization. Also remove unused rtrs_permit_to_pdu from rtrs. Signed-off-by: Gioh Kim <gi-oh.kim@cloud.ionos.com> Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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