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-rw-r--r--include/linux/device-mapper.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index e6bf3b8..0d63106 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -234,6 +234,7 @@ struct gendisk *dm_disk(struct mapped_device *md);
int dm_suspended(struct mapped_device *md);
int dm_noflush_suspending(struct dm_target *ti);
union map_info *dm_get_mapinfo(struct bio *bio);
+union map_info *dm_get_rq_mapinfo(struct request *rq);
/*
* Geometry functions.
@@ -396,4 +397,12 @@ static inline unsigned long to_bytes(sector_t n)
return (n << SECTOR_SHIFT);
}
+/*-----------------------------------------------------------------
+ * Helper for block layer and dm core operations
+ *---------------------------------------------------------------*/
+void dm_dispatch_request(struct request *rq);
+void dm_requeue_unmapped_request(struct request *rq);
+void dm_kill_unmapped_request(struct request *rq, int error);
+int dm_underlying_device_busy(struct request_queue *q);
+
#endif /* _LINUX_DEVICE_MAPPER_H */
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