> --- a/drivers/block/xen-blkback/xenbus.c > +++ b/drivers/block/xen-blkback/xenbus.c > @@ -3,6 +3,20 @@ > Copyright (C) 2005 Rusty Russell <rusty@xxxxxxxxxxxxxxx> > Copyright (C) 2005 XenSource Ltd > > +In addition to the Xenstore nodes required by the Xen block device > +specification, this implementation of blkback uses a new Xenstore > +node: "opened". blkback sets "opened" to "0" before the hotplug script > +is called. Once the device node has been opened, blkback sets "opened" > +to "1". This is a really odd comment style, and a really strange place for it. To me it feels like this should just be a file in Documentation as it relates to how to use the driver, and doesn't really explain the code.
