dm: remove unnecessary wrapper around blk_lld_busy

There is no need for DM to export a wrapper around the already exported
blk_lld_busy().

Signed-off-by: Mike Snitzer <snitzer@redhat.com>

diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index d376dc8..add6391 100644 (file)
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -1627,7 +1627,7 @@ static int __pgpath_busy(struct pgpath *pgpath)
 {
        struct request_queue *q = bdev_get_queue(pgpath->path.dev->bdev);
 
-       return dm_underlying_device_busy(q);
+       return blk_lld_busy(q);
 }
 
 /*

diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 0e5f344..e7095eb 100644 (file)
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -2006,12 +2006,6 @@ out:
        dm_put_live_table(md, srcu_idx);
 }
 
-int dm_underlying_device_busy(struct request_queue *q)
-{
-       return blk_lld_busy(q);
-}
-EXPORT_SYMBOL_GPL(dm_underlying_device_busy);
-
 static int dm_lld_busy(struct request_queue *q)
 {
        int r;

diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index fd23978..51cc1de 100644 (file)
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -605,9 +605,4 @@ static inline unsigned long to_bytes(sector_t n)
        return (n << SECTOR_SHIFT);
 }
 
-/*-----------------------------------------------------------------
- * Helper for block layer and dm core operations
- *---------------------------------------------------------------*/
-int dm_underlying_device_busy(struct request_queue *q);
-
 #endif /* _LINUX_DEVICE_MAPPER_H */