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| author | Joonsoo Kim <iamjoonsoo.kim@lge.com> | 2013-12-18 17:08:52 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-12-18 19:04:52 -0800 |
| commit | 6815bf3f233e0b10c99a758497d5d236063b010b (patch) | |
| tree | c4977435cc39495194445eaef66ac793b562d03a /mm | |
| parent | b0e5fd7359f1ce8db4ccb862b3aa80d2f2cbf4d0 (diff) | |
| download | blackbird-op-linux-6815bf3f233e0b10c99a758497d5d236063b010b.tar.gz blackbird-op-linux-6815bf3f233e0b10c99a758497d5d236063b010b.zip | |
mm/compaction: respect ignore_skip_hint in update_pageblock_skip
update_pageblock_skip() only fits to compaction which tries to isolate
by pageblock unit. If isolate_migratepages_range() is called by CMA, it
try to isolate regardless of pageblock unit and it don't reference
get_pageblock_skip() by ignore_skip_hint. We should also respect it on
update_pageblock_skip() to prevent from setting the wrong information.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Rafael Aquini <aquini@redhat.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Cc: <stable@vger.kernel.org> [3.7+]
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/compaction.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/mm/compaction.c b/mm/compaction.c index 805165bcd3dd..f58bcd016f43 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -134,6 +134,10 @@ static void update_pageblock_skip(struct compact_control *cc, bool migrate_scanner) { struct zone *zone = cc->zone; + + if (cc->ignore_skip_hint) + return; + if (!page) return; |
