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nvme-rdma: use blk_rq_payload_bytes instead of blk_rq_bytes

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blk_rq_bytes does the wrong thing for special payloads like discards and
might cause the driver to not set up a SGL.

Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Sagi Grimberg <[email protected]>
Reviewed-by: Johannes Thumshirn <[email protected]>
Signed-off-by: Keith Busch <[email protected]>
This commit is contained in:
Christoph Hellwig 2018-02-22 07:24:09 -08:00 • committed by Keith Busch
commit 0d30992395
1 changed files with 2 additions and 2 deletions
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4
drivers/nvme/host/rdma.c
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@ -1051,7 +1051,7 @@ static void nvme_rdma_unmap_data(struct nvme_rdma_queue *queue,
struct nvme_rdma_device *dev = queue->device;
struct ib_device *ibdev = dev->dev;
if (!blk_rq_bytes(rq))
if (!blk_rq_payload_bytes(rq))
return;
if (req->mr) {
@ -1166,7 +1166,7 @@ static int nvme_rdma_map_data(struct nvme_rdma_queue *queue,
c->common.flags |= NVME_CMD_SGL_METABUF;
if (!blk_rq_bytes(rq))
if (!blk_rq_payload_bytes(rq))
return nvme_rdma_set_sg_null(c);
req->sg_table.sgl = req->first_sgl;