Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

[linux.git] / Documentation / device-mapper / cache.txt

diff --git a/Documentation/device-mapper/cache.txt b/Documentation/device-mapper/cache.txt
index ff0841711fd524063e2acf0fa4644ec2fbb4b764..8ae1cf8e94daeb6cf142e24624d0e5f4d99d728b 100644 (file)
--- a/Documentation/device-mapper/cache.txt
+++ b/Documentation/device-mapper/cache.txt
@@ -206,6 +206,9 @@ Optional feature arguments are:
                   in a separate btree, which improves speed of shutting
                  down the cache.
 
+   no_discard_passdown : disable passing down discards from the cache
+                         to the origin's data device.
+
 A policy called 'default' is always registered.  This is an alias for
 the policy we currently think is giving best all round performance.