lightnvm: Remove redundant rq->__data_len initialization
Since both blk_old_get_request() and blk_mq_alloc_request() initialize rq->__data_len to zero, it is not necessary to initialize that member in nvme_nvm_alloc_request(). Hence remove the rq->__data_len initialization from nvme_nvm_alloc_request(). Signed-off-by: NBart Van Assche <bart.vanassche@wdc.com> Signed-off-by: NMatias Bjørling <mb@lightnvm.io> Signed-off-by: NJens Axboe <axboe@kernel.dk>
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