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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-12 10:16:46 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-12 10:16:46 -0700
commit8357422d4bf33bc2c35884d4016c3fc9efbbc1d2 (patch)
tree5779dfe36de828d3ef2dacfda48b7961cdc44525 /drivers/md/dm-exception-store.h
parent1021a645344d4a77333e19e60d37b9343be0d7b7 (diff)
parent959eb4e5592cc0b0b07db0ca30d2b1efd790020f (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm
* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm: (33 commits) dm mpath: support discard dm stripe: support discards dm: split discard requests on target boundaries dm stripe: optimize sector division dm stripe: move sector translation to a function dm: error return error for discards dm delay: support discard dm: zero silently drop discards dm: use dm_target_offset macro dm: factor out max_io_len_target_boundary dm: use common __issue_target_request for flush and discard support dm: linear support discard dm crypt: simplify crypt_ctr dm crypt: simplify crypt_config destruction logic dm: allow autoloading of dm mod dm: rename map_info flush_request to target_request_nr dm ioctl: refactor dm_table_complete dm snapshot: implement merge dm: do not initialise full request queue when bio based dm ioctl: make bio or request based device type immutable ...
Diffstat (limited to 'drivers/md/dm-exception-store.h')
-rw-r--r--drivers/md/dm-exception-store.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/md/dm-exception-store.h b/drivers/md/dm-exception-store.h
index e8dfa06af3b..0b2536247cf 100644
--- a/drivers/md/dm-exception-store.h
+++ b/drivers/md/dm-exception-store.h
@@ -126,8 +126,9 @@ struct dm_exception_store {
};
/*
- * Obtain the cow device used by a given snapshot.
+ * Obtain the origin or cow device used by a given snapshot.
*/
+struct dm_dev *dm_snap_origin(struct dm_snapshot *snap);
struct dm_dev *dm_snap_cow(struct dm_snapshot *snap);
/*