On Thu, Nov 29, 2018 at 07:49:59AM -0800, Christoph Hellwig wrote:

quoted

+		/*
+		 * Use plugging if we have a ->commit_rqs() hook as well,
+		 * as we know the driver uses bd->last in a smart
+		 * fashion.
+		 */

Nipick: this could flow on just two lines:

		/*
		 * Use plugging if we have a ->commit_rqs() hook as well, as we
		 * know the driver uses bd->last in a smart fashion.
		 */

But of course otherwise this looks fine:

Reviewed-by: Christoph Hellwig <hch@lst.de>