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>
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index 77bcf50..0822e4a 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -490,9 +490,9 @@ static void hold_bio(struct mirror_set *ms, struct bio *bio)
* If device is suspended, complete the bio.
*/
if (dm_noflush_suspending(ms->ti))
- bio->bi_error = DM_ENDIO_REQUEUE;
+ bio->bi_status = BLK_STS_DM_REQUEUE;
else
- bio->bi_error = -EIO;
+ bio->bi_status = BLK_STS_IOERR;
bio_endio(bio);
return;
@@ -626,7 +626,7 @@ static void write_callback(unsigned long error, void *context)
* degrade the array.
*/
if (bio_op(bio) == REQ_OP_DISCARD) {
- bio->bi_error = -EOPNOTSUPP;
+ bio->bi_status = BLK_STS_NOTSUPP;
bio_endio(bio);
return;
}
@@ -1236,7 +1236,8 @@ static int mirror_map(struct dm_target *ti, struct bio *bio)
return DM_MAPIO_REMAPPED;
}
-static int mirror_end_io(struct dm_target *ti, struct bio *bio, int *error)
+static int mirror_end_io(struct dm_target *ti, struct bio *bio,
+ blk_status_t *error)
{
int rw = bio_data_dir(bio);
struct mirror_set *ms = (struct mirror_set *) ti->private;
@@ -1255,7 +1256,7 @@ static int mirror_end_io(struct dm_target *ti, struct bio *bio, int *error)
return DM_ENDIO_DONE;
}
- if (*error == -EOPNOTSUPP)
+ if (*error == BLK_STS_NOTSUPP)
return DM_ENDIO_DONE;
if (bio->bi_opf & REQ_RAHEAD)
@@ -1277,7 +1278,7 @@ static int mirror_end_io(struct dm_target *ti, struct bio *bio, int *error)
bd = &bio_record->details;
dm_bio_restore(bd, bio);
- bio->bi_error = 0;
+ bio->bi_status = 0;
queue_bio(ms, bio, rw);
return DM_ENDIO_INCOMPLETE;