From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx179.postini.com [74.125.245.179]) by kanga.kvack.org (Postfix) with SMTP id 2E8286B0069 for ; Wed, 12 Dec 2012 16:44:39 -0500 (EST) From: Johannes Weiner Subject: [patch 2/8] mm: vmscan: disregard swappiness shortly before going OOM Date: Wed, 12 Dec 2012 16:43:34 -0500 Message-Id: <1355348620-9382-3-git-send-email-hannes@cmpxchg.org> In-Reply-To: <1355348620-9382-1-git-send-email-hannes@cmpxchg.org> References: <1355348620-9382-1-git-send-email-hannes@cmpxchg.org> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: Rik van Riel , Michal Hocko , Mel Gorman , Hugh Dickins , linux-mm@kvack.org, linux-kernel@vger.kernel.org When a reclaim scanner is doing its final scan before giving up and there is swap space available, pay no attention to swappiness preference anymore. Just swap. Note that this change won't make too big of a difference for general reclaim: anonymous pages are already force-scanned when there is only very little file cache left, and there very likely isn't when the reclaimer enters this final cycle. Signed-off-by: Johannes Weiner --- mm/vmscan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index 3874dcb..6e53446 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1751,7 +1751,7 @@ static void get_scan_count(struct lruvec *lruvec, struct scan_control *sc, unsigned long scan; scan = get_lru_size(lruvec, lru); - if (sc->priority || noswap || !vmscan_swappiness(sc)) { + if (sc->priority || noswap) { scan >>= sc->priority; if (!scan && force_scan) scan = SWAP_CLUSTER_MAX; -- 1.7.11.7 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org