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[linux-2.6.git] / arch / um / Kconfig_block

diff --git a/arch/um/Kconfig_block b/arch/um/Kconfig_block
index fba53d9..46e97fc 100644 (file)
--- a/arch/um/Kconfig_block
+++ b/arch/um/Kconfig_block
@@ -29,6 +29,20 @@ config BLK_DEV_UBD_SYNC
         wise choice too.  In all other cases (for example, if you're just
         playing around with User-Mode Linux) you can choose N.
 
+# Turn this back on when the driver actually works
+#
+#config BLK_DEV_COW
+#      tristate "COW block device"
+#      help
+#      This is a layered driver which sits above two other block devices.
+#      One is read-only, and the other is a read-write layer which stores
+#      all changes.  This provides the illusion that the read-only layer
+#      can be mounted read-write and changed.
+
+config BLK_DEV_COW_COMMON
+       bool
+       default BLK_DEV_COW || BLK_DEV_UBD
+
 config BLK_DEV_LOOP
        tristate "Loopback device support"