linux-kernel - Re: [PATCH 7/7] mm/balloon_compaction: general cleanup

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Message-Id: <20140829140521.ca9b1dc87c8bc4b075f5b083@linux-foundation.org>
Date:	Fri, 29 Aug 2014 14:05:21 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Konstantin Khlebnikov <k.khlebnikov@...sung.com>
Cc:	linux-mm@...ck.org, Rafael Aquini <aquini@...hat.com>,
	Sasha Levin <sasha.levin@...cle.com>,
	Andrey Ryabinin <ryabinin.a.a@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 7/7] mm/balloon_compaction: general cleanup

On Wed, 20 Aug 2014 19:05:09 +0400 Konstantin Khlebnikov <k.khlebnikov@...sung.com> 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?

Thanks.
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