diff options
| author | Vlastimil Babka <vbabka@suse.cz> | 2014-04-23 08:27:19 +1000 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2014-04-23 08:27:19 +1000 |
| commit | eb7930c394bc84ef6bbff69c5ce80711675aaa0f (patch) | |
| tree | 4582c25755b36992ce0633d950b220e1e146ee34 /mm | |
| parent | 717bda08979ba009c256f996078b2f71d7b2b249 (diff) | |
mm-compaction-cleanup-isolate_freepages-fix 2
Cleanup detection of compaction scanners crossing in isolate_freepages().
To make sure compact_finished() observes scanners crossing, we can just
set free_pfn to migrate_pfn instead of confusing max() construct.
Suggested-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Dongjun Shin <d.j.shin@samsung.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Sunghwan Yun <sunghwan.yun@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/compaction.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/compaction.c b/mm/compaction.c index 2577539c026e..6a42ee508e6c 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -758,7 +758,7 @@ static void isolate_freepages(struct zone *zone, * so that compact_finished() may detect this */ if (pfn < low_pfn) - next_free_pfn = max(pfn, zone->zone_start_pfn); + next_free_pfn = cc->migrate_pfn; cc->free_pfn = next_free_pfn; cc->nr_freepages = nr_freepages; |