Messages in this thread Patch in this message | | | From | Minchan Kim <> | Subject | [PATCH] vmscan: Do reclaim stall in case of mlocked page. | Date | Tue, 15 Nov 2011 00:37:23 +0900 |
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[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@suse.de> CC: Johannes Weiner <jweiner@redhat.com> CC: Rik van Riel <riel@redhat.com> CC: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Minchan Kim <minchan.kim@gmail.com> --- 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
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