[PATCH 10/11] block: for async O_DIRECT, mark us as polling if asked to

[Jens Axboe <axboe@xxxxxxxxx>]

Inherit the iocb IOCB_HIPRI flag, and pass on REQ_HIPRI for
those kinds of requests.

Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
---
 fs/block_dev.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/block_dev.c b/fs/block_dev.c
index 7810f5b588ea..c124982b810d 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -386,6 +386,9 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages)
 
 		nr_pages = iov_iter_npages(iter, BIO_MAX_PAGES);
 		if (!nr_pages) {
+			if (iocb->ki_flags & IOCB_HIPRI)
+				bio->bi_opf |= REQ_HIPRI;
+
 			qc = submit_bio(bio);
 			break;
 		}
-- 
2.17.1