In response to David's DRM pull request, Linus Torvalds had the following to say (and no, this time he is not calling the code untested crap) on the mailing list:
No, the biggest missing feature is that Fedora is _still_ shipping Nouveau, and I'm _still_ not seeing Red Hat people actively trying to get it merged into mainline.
What the _hell_ is going on?
In response, Xavier Bestel was quick to reiterate that at last check the Nouveau developers still want the option of changing their kernel/user-space interface. Per standard Linux practice, once the code has been upstreamed in the mainline Linux kernel, the kernel/user API needs to be maintained to avoid causing any breaks for the user.
The Nouveau project has been around for a few years now and they have kernel mode-setting working on nearly all NVIDIA hardware along with many features like RandR 1.2, NouveauFB, suspend/resume, and there is support emerging for its Gallium3D driver (Nouveau status update), but the developers are still not confident in their API.
Linus has responded to Xavier with:
I've heard all the excuses. If it isn't ready, they shouldn't ship it to millions of people. And if it's ready, they should work on merging it.
By shipping it to millions of people he is referring to Red Hat shipping Nouveau with Fedora, which has been their default NVIDIA driver for two releases. David Airlie nor any of the Nouveau developers have yet to comment on this thread, but we are awaiting their response(s).
If we can see Nouveau's DRM get into the kernel soon (Linux 2.6.34 or 2.6.35?) and then a release of their xf86-video-nouveau X.Org driver, we have hopes of seeing the death of the obfuscated, trouble-ridden, feature-limited xf86-video-nv driver in 2010 by the time that X.Org 7.6 rolls around in October of 2010.