On Wed, Jan 18, 2006 at 02:38:11PM -0500, Jason Baron wrote:
>
> On Wed, 18 Jan 2006, Nick Piggin wrote:
>
> > Use page->lru.next to implement the singly linked list of pages rather
> > than the struct deferred_page which needs to be allocated and freed for
> > each page.
> >
> > Signed-off-by: Nick Piggin <[email protected]>
> > Acked-by: Andi Kleen <[email protected]>
> >
> > Index: linux-2.6/arch/x86_64/mm/pageattr.c
> > ===================================================================
>
> ...
>
> > +
> > + flush_map((dpage && !dpage->lru.next) ? (unsigned long)page_address(dpage) : 0);
> > + while (dpage) {
> > + __free_page(dpage);
> > + dpage = (struct page *)dpage->lru.next;
> > }
> > }
> >
>
> do you want to be touching a struct page that was just freed?
>
No, thanks. Good catch.
Nick
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