On Mon, Sep 14, 2009 at 11:41:19AM +0200, Jens Axboe wrote: > Hi, > > This looks a bit odd, what is the purpose of that? It also appears > currently to be unused, it's never set to anything but NULL. It was introduced in: commit 520808bf20e90fdbdb320264ba7dd5cf9d47dcac Author: Andrew Morton <akpm@xxxxxxxx> Date: Fri May 21 00:46:17 2004 -0700 [PATCH] block device layer: separate backing_dev_info infrastructure and already never set in that commit. I'd say nuke it. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html