dm integrity: improve the Kconfig help text for DM_INTEGRITY

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Milan Broz <gmazyland@gmail.com>

diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig
index 7468a22f9d10dcf26809d99bcf7dcd0f3b85378e..23dbf20a8999d69d96effb530a56eb6c92faaf61 100644 (file)
--- a/drivers/md/Kconfig
+++ b/drivers/md/Kconfig
@@ -502,13 +502,24 @@ config DM_LOG_WRITES
          If unsure, say N.
 
 config DM_INTEGRITY
-       tristate "Integrity target"
+       tristate "Integrity target support"
        depends on BLK_DEV_DM
        select BLK_DEV_INTEGRITY
        select DM_BUFIO
        select CRYPTO
        select ASYNC_XOR
        ---help---
-          This is the integrity target.
+         This device-mapper target emulates a block device that has
+         additional per-sector tags that can be used for storing
+         integrity information.
+
+         This integrity target is used with the dm-crypt target to
+         provide authenticated disk encryption or it can be used
+         standalone.
+
+         To compile this code as a module, choose M here: the module will
+         be called dm-integrity.
+
+         If unsure, say N.
 
 endif # MD