commit 55494bf2947dccdf2d98b62374fea7365dfead84
author Mikulas Patocka <mpatocka@redhat.com> Mon Jan 13 19:12:36 2014 -0500
committer Mike Snitzer <snitzer@redhat.com> Tue Jan 14 23:23:02 2014 -0500
tree 08958b0812f1c59732f6a56e2b567ad3a8da7230
parent 2cadabd512acca99e6553d303eaedc97a3178a4d

dm snapshot: use dm-bufio

Use dm-bufio for initial loading of the exceptions.
Introduce a new function dm_bufio_forget that frees the given buffer.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

drivers/md/Kconfig

diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig
index 7441344..39b540a 100644
--- a/drivers/md/Kconfig
+++ b/drivers/md/Kconfig
@@ -238,6 +238,7 @@
 config DM_SNAPSHOT
        tristate "Snapshot target"
        depends on BLK_DEV_DM
+       select DM_BUFIO
        ---help---
          Allow volume managers to take writable snapshots of a device.