3.8.13.16 -stable review patch. If anyone has any objections, please let me know.
------------------ From: Joonsoo Kim <[email protected]> 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 <[email protected]> Acked-by: Vlastimil Babka <[email protected]> Reviewed-by: Naoya Horiguchi <[email protected]> Reviewed-by: Wanpeng Li <[email protected]> Cc: Christoph Lameter <[email protected]> Cc: Rafael Aquini <[email protected]> Cc: Vlastimil Babka <[email protected]> Cc: Wanpeng Li <[email protected]> Cc: Mel Gorman <[email protected]> Cc: Rik van Riel <[email protected]> Cc: Zhang Yanfei <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]> Signed-off-by: Kamal Mostafa <[email protected]> --- mm/compaction.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/mm/compaction.c b/mm/compaction.c index c62bd06..2a17e96 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -133,6 +133,10 @@ 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 [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
