summaryrefslogtreecommitdiff
path: root/include/linux
diff options
context:
space:
mode:
authorGrant Likely <grant.likely@secretlab.ca>2011-10-24 17:03:35 +0200
committerGrant Likely <grant.likely@secretlab.ca>2011-10-24 17:03:35 +0200
commit2bf6f675fa1a0f80b21aff20e6c21e87d6a7c9c9 (patch)
treeef49d741211dcc4f38636b5c422c9c346da09adf /include/linux
parent5762c20593b6b959f1470dc6f1ff4ca4d9570f8d (diff)
parentc3b92c8787367a8bb53d57d9789b558f1295cc96 (diff)
Merge commit 'v3.1' into devicetree/next
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/device-mapper.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index 3fa1f3d90ce..99e3e50b5c5 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -197,6 +197,11 @@ struct dm_target {
* whether or not its underlying devices have support.
*/
unsigned discards_supported:1;
+
+ /*
+ * Set if this target does not return zeroes on discarded blocks.
+ */
+ unsigned discard_zeroes_data_unsupported:1;
};
/* Each target can link one of these into the table */