Re: [PATCH 5/5] have smaps show transparent huge pages

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On Thu, Feb 10, 2011 at 10:20:32AM -0800, Dave Hansen wrote:
> On Thu, 2011-02-10 at 19:09 +0100, Andrea Arcangeli wrote:
> > Maybe it'd be cleaner if we didn't need to cast the pmd to pte_t but I
> > guess this makes things simpler. 
> 
> Yeah, I'm not a huge fan of doing that, either.  But, I'm not sure what
> the alternatives are.  We could basically copy smaps_pte_entry() to
> smaps_pmd_entry(), and then try to make pmd variants of all of the pte
> functions and macros we call in there.

I thought at the smaps_pmd_entry possibility too, but I would expect
it to plain duplicate a bit of code just to avoid a single cast, which
is why I thought the cast was ok in this case.

> I know there's a least a bit of precedent in the hugetlbfs code for
> doing things like this, but it's not a _great_ excuse. :)

;)

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