Re: [PATCH 7/7] mm/balloon_compaction: general cleanup

From: Rafael Aquini
Date: Fri Aug 29 2014 - 17:10:22 EST


On Fri, Aug 29, 2014 at 02:05:21PM -0700, Andrew Morton wrote:
> On Wed, 20 Aug 2014 19:05:09 +0400 Konstantin Khlebnikov <k.khlebnikov@xxxxxxxxxxx> wrote:
>
> > * move special branch for balloon migraion into migrate_pages
> > * remove special mapping for balloon and its flag AS_BALLOON_MAP
> > * embed struct balloon_dev_info into struct virtio_balloon
> > * cleanup balloon_page_dequeue, kill balloon_page_free
> >
>
> grump.
>
> diff -puN include/linux/balloon_compaction.h~mm-balloon_compaction-general-cleanup-fix include/linux/balloon_compaction.h
> --- a/include/linux/balloon_compaction.h~mm-balloon_compaction-general-cleanup-fix
> +++ a/include/linux/balloon_compaction.h
> @@ -145,7 +145,7 @@ static inline void
> balloon_page_insert(struct balloon_dev_info *balloon, struct page *page)
> {
> __SetPageBalloon(page);
> - list_add(&page->lru, head);
> + list_add(&page->lru, &balloon->pages);
> }
>
> static inline void balloon_page_delete(struct page *page, bool isolated)
>
>
> This obviously wasn't tested with CONFIG_BALLOON_COMPACTION=n. Please
> complete the testing of this patchset and let us know the result?
>

That also reminds me why I suggested moving those as static inlines into mm.h,
instead of getting them hidden in mm/balloon_compaction.c

Cheers,
-- Rafael
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