dm exception store: move chunk_fields

Move chunk fields from snapshot to exception store.

Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

1 files changed, 2 insertions, 7 deletions

diff --git a/drivers/md/dm-snap.h b/drivers/md/dm-snap.h
index 93cd8ee8997f..c2e4ebedbd49 100644
--- a/drivers/md/dm-snap.h
+++ b/drivers/md/dm-snap.h
@@ -32,11 +32,6 @@ struct dm_snapshot {
         /* List of snapshots per Origin */
         struct list_head list;
 
-        /* Size of data blocks saved - must be a power of 2 */
-        chunk_t chunk_size;
-        chunk_t chunk_mask;
-        chunk_t chunk_shift;
-
         /* You can't use a snapshot if this is 0 (e.g. if full) */
         int valid;
 
@@ -84,12 +79,12 @@ static inline sector_t get_dev_size(struct block_device *bdev)
 
 static inline chunk_t sector_to_chunk(struct dm_snapshot *s, sector_t sector)
 {
-        return (sector & ~s->chunk_mask) >> s->chunk_shift;
+        return (sector & ~s->store->chunk_mask) >> s->store->chunk_shift;
 }
 
 static inline sector_t chunk_to_sector(struct dm_snapshot *s, chunk_t chunk)
 {
-        return chunk << s->chunk_shift;
+        return chunk << s->store->chunk_shift;
 }
 
 static inline int bdev_equal(struct block_device *lhs, struct block_device *rhs)