This stub was added so that we could use dm-snap with DM_TYPE_DAX_BIO_BASED
mode devices. That mode and the transition issues associated with it no
longer exist, so we can remove this dead code.
Signed-off-by: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>
---
drivers/md/dm-snap.c | 8 --------
1 file changed, 8 deletions(-)
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index 216035be5661..0143b158d52d 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -2305,13 +2305,6 @@ static int origin_map(struct dm_target *ti, struct bio *bio)
return do_origin(o->dev, bio);
}
-static long origin_dax_direct_access(struct dm_target *ti, pgoff_t pgoff,
- long nr_pages, void **kaddr, pfn_t *pfn)
-{
- DMWARN("device does not support dax.");
- return -EIO;
-}
-
/*
* Set the target "max_io_len" field to the minimum of all the snapshots'
* chunk sizes.
@@ -2371,7 +2364,6 @@ static struct target_type origin_target = {
.postsuspend = origin_postsuspend,
.status = origin_status,
.iterate_devices = origin_iterate_devices,
- .direct_access = origin_dax_direct_access,
};
static struct target_type snapshot_target = {
--
2.14.3
