3.11.10.3 -stable review patch. If anyone has any objections, please let me
know.
------------------
From: Joonsoo Kim <iamjoonsoo....@lge.com>
commit 6815bf3f233e0b10c99a758497d5d236063b010b upstream.
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....@lge.com>
Acked-by: Vlastimil Babka <vba...@suse.cz>
Reviewed-by: Naoya Horiguchi <n-horigu...@ah.jp.nec.com>
Reviewed-by: Wanpeng Li <liw...@linux.vnet.ibm.com>
Cc: Christoph Lameter <c...@linux.com>
Cc: Rafael Aquini <aqu...@redhat.com>
Cc: Vlastimil Babka <vba...@suse.cz>
Cc: Wanpeng Li <liw...@linux.vnet.ibm.com>
Cc: Mel Gorman <mgor...@suse.de>
Cc: Rik van Riel <r...@redhat.com>
Cc: Zhang Yanfei <zhangyan...@cn.fujitsu.com>
Signed-off-by: Andrew Morton <a...@linux-foundation.org>
Signed-off-by: Linus Torvalds <torva...@linux-foundation.org>
Signed-off-by: Luis Henriques <luis.henriq...@canonical.com>
---
mm/compaction.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/mm/compaction.c b/mm/compaction.c
index 05ccb4c..9a3e351 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;
--
1.8.3.2
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
