Commit f0b01b6a authored Nov 28, 2016 by Javier González Committed by Jens Axboe Nov 29, 2016

lightnvm: rrpc: split bios of size > 256kb



rrpc cannot handle bios of size > 256kb due to NVMe using a 64 bit
bitmap to signal I/O completion. If a larger bio comes, split it
explicitly.

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>

parent 402ab9a8

drivers/lightnvm/rrpc.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -943,6 +943,8 @@ static blk_qc_t rrpc_make_rq(struct request_queue q, struct bio bio)
		struct nvm_rq *rqd;
		int err;

		blk_queue_split(q, &bio, q->bio_split);

		if (bio_op(bio) == REQ_OP_DISCARD) {
		rrpc_discard(rrpc, bio);
		return BLK_QC_T_NONE;