From: Joonsoo Kim <[email protected]> Subject: 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 <[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]> Cc: <[email protected]> [3.7+] Signed-off-by: Andrew Morton <[email protected]> --- mm/compaction.c | 4 ++++ 1 file changed, 4 insertions(+) diff -puN mm/compaction.c~mm-compaction-respect-ignore_skip_hint-in-update_pageblock_skip mm/compaction.c --- a/mm/compaction.c~mm-compaction-respect-ignore_skip_hint-in-update_pageblock_skip +++ a/mm/compaction.c @@ -134,6 +134,10 @@ static void update_pageblock_skip(struct bool migrate_scanner) { struct zone *zone = cc->zone; + + if (cc->ignore_skip_hint) + return; + if (!page) return; _ -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
