summaryrefslogtreecommitdiff
path: root/drivers/md/dm-exception-store.h
diff options
context:
space:
mode:
authorJonathan Brassow <jbrassow@redhat.com>2009-04-02 19:55:33 +0100
committerAlasdair G Kergon <agk@redhat.com>2009-04-02 19:55:33 +0100
commit49beb2b87a972a994ff77633234ca3bf0d30a1d8 (patch)
tree4b281ebd48624d0fbe74b93fa72baa834211ca2f /drivers/md/dm-exception-store.h
parentd0216849519bec8dc96301a3cd80316e71243839 (diff)
dm exception store: move cow pointer
Move COW device from snapshot to exception store. Signed-off-by: Jonathan Brassow <jbrassow@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers/md/dm-exception-store.h')
-rw-r--r--drivers/md/dm-exception-store.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/md/dm-exception-store.h b/drivers/md/dm-exception-store.h
index 449a1e48f7aa..4dbf3577408e 100644
--- a/drivers/md/dm-exception-store.h
+++ b/drivers/md/dm-exception-store.h
@@ -99,6 +99,8 @@ struct dm_exception_store {
struct dm_snapshot *snap;
+ struct dm_dev *cow;
+
/* Size of data blocks saved - must be a power of 2 */
chunk_t chunk_size;
chunk_t chunk_mask;
@@ -155,7 +157,7 @@ int dm_exception_store_type_unregister(struct dm_exception_store_type *type);
int dm_exception_store_create(const char *type_name, struct dm_target *ti,
chunk_t chunk_size, chunk_t chunk_mask,
- chunk_t chunk_shift,
+ chunk_t chunk_shift, struct dm_dev *cow,
struct dm_exception_store **store);
void dm_exception_store_destroy(struct dm_exception_store *store);