Re: [PATCH 4/4] capture pages freed during direct reclaim for allocation by the reclaimer

Peter Zijlstra
2008-09-04T06:38:28Z

On Wed, 2008-09-03 at 16:00 -0500, Christoph Lameter wrote:
> Andy Whitcroft wrote:
>
> >
> > #ifndef __GENERATING_BOUNDS_H
> > @@ -208,6 +211,9 @@ __PAGEFLAG(SlubDebug, slub_debug)
> > */
> > TESTPAGEFLAG(Writeback, writeback) TESTSCFLAG(Writeback, writeback)
> > __PAGEFLAG(Buddy, buddy)
> > +PAGEFLAG(BuddyCapture, buddy_capture) /* A buddy page, but reserved. */
> > + __SETPAGEFLAG(BuddyCapture, buddy_capture)
> > + __CLEARPAGEFLAG(BuddyCapture, buddy_capture)
>
> Doesnt __PAGEFLAG do what you want without having to explicitly specify
> __SET/__CLEAR?

PAGEFLAG() __PAGEFLAG()

does TESTPAGEFLAG() double.