Re: [RFC][PATCH 2/2] kernel: extract thread types fromtask_struct::flags

[Andrew Morton]

On Mon, 20 Sep 2010 21:25:16 +0200
Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:

> So can you agree with Linus' proposal of simply moving all type like
> bits over to a new word, or would you rather see the linear type field
> with an extra helper; possibly part of the existing ->flags field?

No strong feelings either way, really.

One thing we should keep an eye out for is the size/speed of code at
the client callsites.  Plucking a field of bits out of the flags word
and then treating that as a scalar would generate quite a bit of code,
I expect.  Let's not do that.
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