drm/bridge: Make the bridge chain a double-linked list

[linux.git] / drivers / md / Kconfig

diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig
index 3834332f4963e9a333c826e5fcf734451156c718..aa98953f4462e5d233cd156e56c415130b90a106 100644 (file)
--- a/drivers/md/Kconfig
+++ b/drivers/md/Kconfig
@@ -271,6 +271,7 @@ config DM_CRYPT
        depends on BLK_DEV_DM
        select CRYPTO
        select CRYPTO_CBC
+       select CRYPTO_ESSIV
        ---help---
          This device-mapper target allows you to create a device that
          transparently encrypts the data on it. You'll need to activate
@@ -346,6 +347,20 @@ config DM_ERA
          over time.  Useful for maintaining cache coherency when using
          vendor snapshots.
 
+config DM_CLONE
+       tristate "Clone target (EXPERIMENTAL)"
+       depends on BLK_DEV_DM
+       default n
+       select DM_PERSISTENT_DATA
+       ---help---
+         dm-clone produces a one-to-one copy of an existing, read-only source
+         device into a writable destination device. The cloned device is
+         visible/mountable immediately and the copy of the source device to the
+         destination device happens in the background, in parallel with user
+         I/O.
+
+         If unsure, say N.
+
 config DM_MIRROR
        tristate "Mirror target"
        depends on BLK_DEV_DM
@@ -490,6 +505,18 @@ config DM_VERITY
 
          If unsure, say N.
 
+config DM_VERITY_VERIFY_ROOTHASH_SIG
+       def_bool n
+       bool "Verity data device root hash signature verification support"
+       depends on DM_VERITY
+       select SYSTEM_DATA_VERIFICATION
+         help
+         Add ability for dm-verity device to be validated if the
+         pre-generated tree of cryptographic checksums passed has a pkcs#7
+         signature file that can validate the roothash of the tree.
+
+         If unsure, say N.
+
 config DM_VERITY_FEC
        bool "Verity forward error correction support"
        depends on DM_VERITY