Re: [PATCH 03/10] mm: tag reseve pages

Christoph Lameter
2007-08-06T18:43:59Z

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?