We get all sorts of unreliable and funky results since the bio is
designed to align on a cacheline, which it does not when inlined like
this.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/fops.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/fops.c b/block/fops.c
index 1d4f862950bb..7eebd590342b 100644
--- a/block/fops.c
+++ b/block/fops.c

@@ -137,7 +137,7 @@ struct blkdev_dio {
 	size_t			size;
 	atomic_t		ref;
 	unsigned int		flags;
-	struct bio		bio;
+	struct bio		bio ____cacheline_aligned_in_smp;
 };
 
 static struct bio_set blkdev_dio_pool;

-- 
2.33.1