Re: [patch 1/4] mempolicy: convert MPOL constants to enum

From: Christoph Lameter
Date: Mon Feb 11 2008 - 15:45:56 EST


On Mon, 11 Feb 2008, David Rientjes wrote:

> On Mon, 11 Feb 2008, Christoph Lameter wrote:
>
> > Then you could follow through with the enum mempolicy thing
> > throughtout. Why not use enum mempolicy in struct mempolicy?
> >
>
> Mempolicy flags, as I implemented them in patch 2 in this series, are not
> integer constants that are enumerated starting at 0. They are individual
> bits that are shifted a pre-defined length and intersected with the
> enumerated mode. This allows both the mode and the flags to be stored in
> the same object.

Ok. Now are you are making the same point that I did before. Lets leave
enum out if we need to do these tricks with the upper bits.
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