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-rw-r--r--include/linux/device-mapper.h6
-rw-r--r--include/linux/dm-io.h3
-rw-r--r--include/linux/dm-kcopyd.h3
3 files changed, 8 insertions, 4 deletions
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index 32a4423710f..4427e045405 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -191,6 +191,12 @@ struct dm_target {
/* Used to provide an error string from the ctr */
char *error;
+
+ /*
+ * Set if this target needs to receive discards regardless of
+ * whether or not its underlying devices have support.
+ */
+ unsigned discards_supported:1;
};
/* Each target can link one of these into the table */
diff --git a/include/linux/dm-io.h b/include/linux/dm-io.h
index 5c9186b93ff..f4b0aa3126f 100644
--- a/include/linux/dm-io.h
+++ b/include/linux/dm-io.h
@@ -69,8 +69,7 @@ struct dm_io_request {
*
* Create/destroy may block.
*/
-struct dm_io_client *dm_io_client_create(unsigned num_pages);
-int dm_io_client_resize(unsigned num_pages, struct dm_io_client *client);
+struct dm_io_client *dm_io_client_create(void);
void dm_io_client_destroy(struct dm_io_client *client);
/*
diff --git a/include/linux/dm-kcopyd.h b/include/linux/dm-kcopyd.h
index 5db21631169..298d587e349 100644
--- a/include/linux/dm-kcopyd.h
+++ b/include/linux/dm-kcopyd.h
@@ -25,8 +25,7 @@
* To use kcopyd you must first create a dm_kcopyd_client object.
*/
struct dm_kcopyd_client;
-int dm_kcopyd_client_create(unsigned num_pages,
- struct dm_kcopyd_client **result);
+struct dm_kcopyd_client *dm_kcopyd_client_create(void);
void dm_kcopyd_client_destroy(struct dm_kcopyd_client *kc);
/*