Staging: add cowloop to the build

Now that the code can build, let's add it to the build system.

Cc: "H.J. Thomassen" <hjt@ATComputing.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

4 files changed, 20 insertions, 0 deletions

diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index 2b3c0c45571d..ee073ce39740 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -141,5 +141,7 @@ source "drivers/staging/sep/Kconfig"
 
 source "drivers/staging/iio/Kconfig"
 
+source "drivers/staging/cowloop/Kconfig"
+
 endif # !STAGING_EXCLUDE_BUILD
 endif # STAGING
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index aa9553cc6a58..c5c8cae3645d 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -52,3 +52,4 @@ obj-$(CONFIG_VME_BUS)		+= vme/
 obj-$(CONFIG_RAR_REGISTER)      += rar/
 obj-$(CONFIG_DX_SEP)            += sep/
 obj-$(CONFIG_IIO)               += iio/
+obj-$(CONFIG_COWLOOP)           += cowloop/
diff --git a/drivers/staging/cowloop/Kconfig b/drivers/staging/cowloop/Kconfig
new file mode 100644
index 000000000000..58d2a23bd2c1
--- /dev/null
+++ b/drivers/staging/cowloop/Kconfig
@@ -0,0 +1,16 @@
+config COWLOOP
+        tristate "copy-on-write pseudo Block Driver"
+        depends on BLOCK
+        default n
+        ---help---
+          Cowloop is a "copy-on-write" pseudo block driver. It can be
+          stacked on top of a "real" block driver, and catches all write
+          operations on their way from the file systems layer above to
+          the real driver below, effectively shielding the lower driver
+          from those write accesses. The requests are then diverted to
+          an ordinary file, located somewhere else (configurable). Later
+          read requests are checked to see whether they can be serviced
+          by the "real" block driver below, or must be pulled in from
+          the diverted location. More information and userspace tools to
+          use the driver are on the project's website
+          http://www.ATComputing.nl/cowloop/
diff --git a/drivers/staging/cowloop/Makefile b/drivers/staging/cowloop/Makefile
new file mode 100644
index 000000000000..2b6b81a63d21
--- /dev/null
+++ b/drivers/staging/cowloop/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_COWLOOP)   += cowloop.o