block, drivers: add REQ_OP_FLUSH operation
This adds a REQ_OP_FLUSH operation that is sent to request_fn
based drivers by the block layer's flush code, instead of
sending requests with the request->cmd_flags REQ_FLUSH bit set.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 089b8b8..abdfdcf 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -290,7 +290,7 @@
if (req->cmd_type == REQ_TYPE_DRV_PRIV)
memcpy(cmd, req->cmd, sizeof(*cmd));
- else if (req->cmd_flags & REQ_FLUSH)
+ else if (req_op(req) == REQ_OP_FLUSH)
nvme_setup_flush(ns, cmd);
else if (req_op(req) == REQ_OP_DISCARD)
ret = nvme_setup_discard(ns, req, cmd);
