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| author | Mel Gorman <mgorman@suse.de> | 2012-11-29 13:54:20 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-11-30 08:51:17 -0800 |
| commit | 58d002097b98664e2a39cc708f30d11549d870b2 (patch) | |
| tree | adc25d498f5ff8ffe780080831ab7d896c1ea15e /mm | |
| parent | aa10990e028cac3d5e255711fb9fb47e00700e35 (diff) | |
| download | lwn-58d002097b98664e2a39cc708f30d11549d870b2.tar.gz lwn-58d002097b98664e2a39cc708f30d11549d870b2.zip | |
mm: compaction: fix return value of capture_free_page()
Commit ef6c5be658f6 ("fix incorrect NR_FREE_PAGES accounting (appears
like memory leak)") fixes a NR_FREE_PAGE accounting leak but missed the
return value which was also missed by this reviewer until today.
That return value is used by compaction when adding pages to a list of
isolated free pages and without this follow-up fix, there is a risk of
free list corruption.
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Dave Hansen <dave@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/page_alloc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 92871579cbee..7e208f0ad68c 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1422,7 +1422,7 @@ int capture_free_page(struct page *page, int alloc_order, int migratetype) } } - return 1UL << order; + return 1UL << alloc_order; } /* |