[APPENDIX PATCH 12/13] dm-mpath: add hw-handler interface

[Kiyoshi Ueda]

This patch adds a hw-handler interface for request-based dm-multipath.

Signed-off-by: Kiyoshi Ueda <k-ueda@xxxxxxxxxxxxx>
Signed-off-by: Jun'ichi Nomura <j-nomura@xxxxxxxxxxxxx>
---
 drivers/md/dm-hw-handler.h |    1 +
 1 files changed, 1 insertion(+)

Index: 2.6.25-rc1/drivers/md/dm-hw-handler.h
===================================================================
--- 2.6.25-rc1.orig/drivers/md/dm-hw-handler.h
+++ 2.6.25-rc1/drivers/md/dm-hw-handler.h
@@ -35,6 +35,7 @@ struct hw_handler_type {
 	void (*pg_init) (struct hw_handler *hwh, unsigned bypassed,
 			 struct dm_path *path);
 	unsigned (*error) (struct hw_handler *hwh, struct bio *bio);
+	unsigned (*error_rq) (struct hw_handler *hwh, struct request *rq);
 	int (*status) (struct hw_handler *hwh, status_type_t type,
 		       char *result, unsigned int maxlen);
 };
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