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>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index 910e065918af..5c07a23e2ada 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -597,7 +597,7 @@ static void skd_request_fn(struct request_queue *q)
                 data_dir = rq_data_dir(req);
                 io_flags = req->cmd_flags;
 
-                if (io_flags & REQ_FLUSH)
+                if (req_op(req) == REQ_OP_FLUSH)
                         flush++;
 
                 if (io_flags & REQ_FUA)