On Mon, Aug 29, 2011 at 03:40:07PM -0700, Michel Lespinasse wrote:

Looks great.

Thanks!

I think some page_mapcount call sites would be easier to read if you
took on my tail_page_count() suggestion (so we can casually see it's a
refcount rather than mapcount). But you don't have to do it if you
don't think it helps. I'm happy enough with the code already :)

I initially tried to do it but I wanted it in internal.h (it's really
an internal thing not mean for any driver whatsoever) but then the
gup.c files wouldn't see it, so I wasn't sure how to proceed and I
dropped it. It's still possible to do it later...

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