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-rw-r--r--include/linux/device-mapper.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index 8bdbbfce759a..bdd65e97a129 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -212,6 +212,12 @@ struct dm_target {
char *error;
/*
+ * Set if this target needs to receive flushes regardless of
+ * whether or not its underlying devices have support.
+ */
+ bool flush_supported:1;
+
+ /*
* Set if this target needs to receive discards regardless of
* whether or not its underlying devices have support.
*/