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Message-ID: <4D691ACA.9090405@gmail.com>
Date: Sat, 26 Feb 2011 16:22:50 +0100
From: Maarten Lankhorst <m.b.lankhorst@gmail.com>
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To: linux-kernel@vger.kernel.org
Subject: Taking forward the realtime work
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Hi all,

After digging through the -rt patchset again I wanted to take it forward 
to the current kernel, so far I didn't to get much work done as the code 
seems to be kinda invasive, even with a lot of the things already in 
mainline. However a lot of things in the -rt patch seem to no longer be 
needed, since softirqs are merged, the BKL is gone, and there's a patch 
set out to make mm preemptible.

I've started testing from the mm-preempt patchset, and it seems to boot, 
but now that I'm actually looking at the -rt patchset diff from 
v2.6.33.7 it's not that trivial to port forward, so I'm looking for 
help. Blindly trying to apply the diff forward 6 versions will not work, 
so I'm looking at how to add the patches in such a way that each change 
is done in a logical order, in such a way preferably that at each point 
the kernel is bootable. I understand that for -rt there will be a few 
commits for which that won't be possible, but it seems to me the amount 
of work needed to get -rt working isn't as big any more as it used to be.

Note: There's no guarantee I'll be able to pull it off, but there's this 
itch I need to get rid of. ;)

Cheers,
Maarten
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