On Mon, 6 Aug 2007, Andi Kleen wrote:
> > > pgoff_t index; /* Our offset within mapping. */
> > > void *freelist; /* SLUB: freelist req. slab lock */
> > > + int reserve; /* page_alloc: page is a reserve page */
> >
> > Extending page struct ???
>
> Note it's an union.
Ok. Then under what conditions can we use reserve? Right after alloc?
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