dm cache: Remove unused functions in bio-prison-v1

dm_cache_size() and dm_cache_dump() are unused since commit
b29d4986d0da ("dm cache: significant rework to leverage dm-bio-prison-v2")

Remove them.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

1 files changed, 0 insertions, 24 deletions

diff --git a/drivers/md/dm-bio-prison-v1.h b/drivers/md/dm-bio-prison-v1.h
index 2a097ed0d85e..d39706c48447 100644
--- a/drivers/md/dm-bio-prison-v1.h
+++ b/drivers/md/dm-bio-prison-v1.h
@@ -73,17 +73,6 @@ void dm_bio_prison_free_cell(struct dm_bio_prison *prison,
 			     struct dm_bio_prison_cell *cell);
 
 /*
- * Creates, or retrieves a cell that overlaps the given key.
- *
- * Returns 1 if pre-existing cell returned, zero if new cell created using
- * @cell_prealloc.
- */
-int dm_get_cell(struct dm_bio_prison *prison,
-		struct dm_cell_key *key,
-		struct dm_bio_prison_cell *cell_prealloc,
-		struct dm_bio_prison_cell **cell_result);
-
-/*
  * Returns false if key is beyond BIO_PRISON_MAX_RANGE or spans a boundary.
  */
 bool dm_cell_key_has_valid_range(struct dm_cell_key *key);
@@ -117,19 +106,6 @@ void dm_cell_visit_release(struct dm_bio_prison *prison,
 			   void (*visit_fn)(void *, struct dm_bio_prison_cell *),
 			   void *context, struct dm_bio_prison_cell *cell);
 
-/*
- * Rather than always releasing the prisoners in a cell, the client may
- * want to promote one of them to be the new holder.  There is a race here
- * though between releasing an empty cell, and other threads adding new
- * inmates.  So this function makes the decision with its lock held.
- *
- * This function can have two outcomes:
- * i) An inmate is promoted to be the holder of the cell (return value of 0).
- * ii) The cell has no inmate for promotion and is released (return value of 1).
- */
-int dm_cell_promote_or_release(struct dm_bio_prison *prison,
-			       struct dm_bio_prison_cell *cell);
-
 /*----------------------------------------------------------------*/
 
 /*