Re: [PATCH 2/3] make new alloc_pages_exact()

[Michal Nazarewicz]

On Tue, 12 Apr 2011 17:04:13 +0200, Dave Hansen <dave@xxxxxxxxxxxxxxxxxx>  
wrote:

> On Tue, 2011-04-12 at 12:28 +0200, Michal Nazarewicz wrote:
> > > Dave Hansen <dave@xxxxxxxxxxxxxxxxxx> wrote:
> > >> +void __free_pages_exact(struct page *page, size_t nr_pages)
> > >> +{
> > >> +	struct page *end = page + nr_pages;
> > >> +
> > >> +	while (page < end) {
> > >> +		__free_page(page);
> > >> +		page++;
> > >> +	}
> > >> +}
> > >> +EXPORT_SYMBOL(__free_pages_exact);
> >
> > On Tue, 12 Apr 2011 00:22:23 +0200, Andrew Morton wrote:
> > > Really, this function duplicates release_pages().
> >
> > It requires an array of pointers to pages which is not great though if  
> > one
> > just wants to free a contiguous sequence of pages.
>
> Actually, the various mem_map[]s _are_ arrays, at least up to
> MAX_ORDER_NR_PAGES at a time.  We can use that property here.

In that case, waiting eagerly for the new patch. :)

--
Best regards,                                         _     _
.o. | Liege of Serenely Enlightened Majesty of      o' \,=./ `o
..o | Computer Science,  Michal "mina86" Nazarewicz    (o o)
ooo +-----<email/xmpp: mnazarewicz@xxxxxxxxxx>-----ooO--(_)--Ooo--
--
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/