Subject: Re: port-xen/29775: Cannot use a vnode disk for domU
To: Daniel Carosone <dan@geek.com.au>
From: Jason Thorpe <thorpej@shagadelic.org>
List: tech-kern
Date: 03/30/2005 15:31:53
On Mar 30, 2005, at 3:27 PM, Daniel Carosone wrote:
> Now that it's done from a thread that can sleep, teaching vnd to use
> VOP_BALLOC when VOP_BMAP fails on write (and just constructing
> zero-filled buffers on read) - and thus dealing with holey files - is
> quite feasible. With Chuck's recent direct-io changes, though,
> perhaps the whole thing can move up to use VOP_RDWR and eliminate much
> code without skewing the cache.
The direct-io code hasn't been checked in, has it?
-- thorpej