Re: [PATCH] mm: count only reclaimable lru pages

[Rik van Riel]

Christoph Lameter wrote:
> On Thu, 16 Jul 2009, Peter Zijlstra wrote:
>
> > > What would you suggest?  In fact I'm not totally comfortable with it.
> > > Maybe it would be safer to simply stick with the old _lru_pages
> > > naming?
> > Nah, I like the reclaimable name, these pages are at least potentially
> > reclaimable.
> >
> > lru_pages() is definately not correct anymore since you exclude the
> > unevictable and possibly the anon pages.
>
> Well lets at least add a comment at the beginning of the functions
> explaining that these are potentially reclaimable and list some of the
> types of pages that may not be reclaimable.

The pages that are not reclaimable will be on the
unevictable LRU list, not on the lists we count.

The only case of pages not being evictable is the
anon pages, once swap fills up.

--
All rights reversed.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/