block: switch bios to blk_status_t

Replace bi_error with a new bi_status to allow for a clear conversion.
Note that device mapper overloaded bi_error with a private value, which
we'll have to keep arround at least for now and thus propagate to a
proper blk_status_t value.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c
index c9539917a59b..3d04d5ce19d9 100644
--- a/drivers/md/dm-flakey.c
+++ b/drivers/md/dm-flakey.c
@@ -358,7 +358,8 @@ map_bio:
         return DM_MAPIO_REMAPPED;
 }
 
-static int flakey_end_io(struct dm_target *ti, struct bio *bio, int *error)
+static int flakey_end_io(struct dm_target *ti, struct bio *bio,
+                blk_status_t *error)
 {
         struct flakey_c *fc = ti->private;
         struct per_bio_data *pb = dm_per_bio_data(bio, sizeof(struct per_bio_data));
@@ -377,7 +378,7 @@ static int flakey_end_io(struct dm_target *ti, struct bio *bio, int *error)
                          * Error read during the down_interval if drop_writes
                          * and error_writes were not configured.
                          */
-                        *error = -EIO;
+                        *error = BLK_STS_IOERR;
                 }
         }