Re: [PATCH 01/15] mm: poison struct page for ptlock

[Hugh Dickins]

On Tue, 15 Nov 2005, Andrew Morton wrote:
> 
> It occurs to me that we can do the above if (__GNUC__ > 2), or whatever.
> 
> That way, the only people who have a 4-byte-larger pageframe are those who
> use CONFIG_PREEMPT, NR_CPUS>=4 and gcc-2.x.y.  An acceptably small
> community, I suspect.

I can't really think of this at the moment (though the PageReserved
fixups going smoother this evening).  Acceptably small community, yes.
But wouldn't it plunge us into the very mess of wrappers we were trying
to avoid with anony structunions, to handle the __GNUC__ differences?

Hugh
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