dm: add zone open, close and finish support
Implement REQ_OP_ZONE_OPEN, REQ_OP_ZONE_CLOSE and REQ_OP_ZONE_FINISH
support to allow explicit control of zone states.
Contains contributions from Matias Bjorling, Hans Holmberg and
Damien Le Moal.
Acked-by: Mike Snitzer <snitzer@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ajay Joshi <ajay.joshi@wdc.com>
Signed-off-by: Matias Bjorling <matias.bjorling@wdc.com>
Signed-off-by: Hans Holmberg <hans.holmberg@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c
index 2900fbd..76587e9 100644
--- a/drivers/md/dm-flakey.c
+++ b/drivers/md/dm-flakey.c
@@ -280,7 +280,7 @@ static void flakey_map_bio(struct dm_target *ti, struct bio *bio)
struct flakey_c *fc = ti->private;
bio_set_dev(bio, fc->dev->bdev);
- if (bio_sectors(bio) || bio_op(bio) == REQ_OP_ZONE_RESET)
+ if (bio_sectors(bio) || op_is_zone_mgmt(bio_op(bio)))
bio->bi_iter.bi_sector =
flakey_map_sector(ti, bio->bi_iter.bi_sector);
}
@@ -322,8 +322,7 @@ static int flakey_map(struct dm_target *ti, struct bio *bio)
struct per_bio_data *pb = dm_per_bio_data(bio, sizeof(struct per_bio_data));
pb->bio_submitted = false;
- /* Do not fail reset zone */
- if (bio_op(bio) == REQ_OP_ZONE_RESET)
+ if (op_is_zone_mgmt(bio_op(bio)))
goto map_bio;
/* Are we alive ? */
@@ -384,7 +383,7 @@ static int flakey_end_io(struct dm_target *ti, struct bio *bio,
struct flakey_c *fc = ti->private;
struct per_bio_data *pb = dm_per_bio_data(bio, sizeof(struct per_bio_data));
- if (bio_op(bio) == REQ_OP_ZONE_RESET)
+ if (op_is_zone_mgmt(bio_op(bio)))
return DM_ENDIO_DONE;
if (!*error && pb->bio_submitted && (bio_data_dir(bio) == READ)) {