[1] made avoid unnecessary reclaim stall when second shrink_page_list(ie, synchronous shrink_page_list) try to reclaim page_list which has not-dirty pages. But it seems rather awkawrd on unevictable page. The unevictable page in shrink_page_list would be moved into unevictable lru from page_list. So it would be not on page_list when shrink_page_list returns. Nevertheless it skips reclaim stall. This patch fixes it so that it can do reclaim stall in case of mixing mlocked pages and writeback pages on page_list. [1] 7d3579e,vmscan: narrow the scenarios in whcih lumpy reclaim uses synchrounous reclaim CC: Mel Gorman <mgorman@xxxxxxx> CC: Johannes Weiner <jweiner@xxxxxxxxxx> CC: Rik van Riel <riel@xxxxxxxxxx> CC: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> Signed-off-by: Minchan Kim <minchan.kim@xxxxxxxxx> --- mm/vmscan.c | 1 - 1 files changed, 0 insertions(+), 1 deletions(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index 2300342..23878de 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -987,7 +987,6 @@ cull_mlocked: try_to_free_swap(page); unlock_page(page); putback_lru_page(page); - reset_reclaim_mode(sc); continue; activate_locked: -- 1.7.6 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>