On Tue, Oct 29, 2013 at 09:00:48AM -0400, Anna Schumaker wrote: > From what I can tell, I think the allocated flag will just tell the > clients if all the blocks exist on disk or not. Is there a way to have > a hole with allocated blocks? Or maybe it's supposed to represent > partially allocated blocks? I checked the draft, and it doesn't > actually say what they expect allocated to represent... You can have preallocated space, which behaves like a hole in that reads return zeroes. As far as SEEK_DATA/SEEK_HOLE is concerned we tend to treat them as holes when we can as that's what the users expect. Note that at least the pnfs block rfc has a special state representing this kind of preallocated space. -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
