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-rw-r--r--block/blk-core.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/block/blk-core.c b/block/blk-core.c
index d2bba4700e65..6375674e719b 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -110,14 +110,12 @@ void blk_queue_congestion_threshold(struct request_queue *q)
* @bdev: device
*
* Locates the passed device's request queue and returns the address of its
- * backing_dev_info. This function can only be called if @bdev is opened
- * and the return value is never NULL.
+ * backing_dev_info. The return value is never NULL however we may return
+ * &noop_backing_dev_info if the bdev is not currently open.
*/
struct backing_dev_info *blk_get_backing_dev_info(struct block_device *bdev)
{
- struct request_queue *q = bdev_get_queue(bdev);
-
- return q->backing_dev_info;
+ return bdev->bd_bdi;
}
EXPORT_SYMBOL(blk_get_backing_dev_info);