From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pb0-f48.google.com (mail-pb0-f48.google.com [209.85.160.48]) by kanga.kvack.org (Postfix) with ESMTP id 7DB3D6B0195 for ; Thu, 20 Mar 2014 02:39:49 -0400 (EDT) Received: by mail-pb0-f48.google.com with SMTP id md12so485486pbc.21 for ; Wed, 19 Mar 2014 23:39:49 -0700 (PDT) Received: from LGEAMRELO01.lge.com (lgeamrelo01.lge.com. [156.147.1.125]) by mx.google.com with ESMTP id uk5si712438pab.191.2014.03.19.23.39.43 for ; Wed, 19 Mar 2014 23:39:45 -0700 (PDT) From: Minchan Kim Subject: [RFC v2 3/3] mm: deactivate lazyfree pages Date: Thu, 20 Mar 2014 15:38:58 +0900 Message-Id: <1395297538-10491-4-git-send-email-minchan@kernel.org> In-Reply-To: <1395297538-10491-1-git-send-email-minchan@kernel.org> References: <1395297538-10491-1-git-send-email-minchan@kernel.org> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: Rik van Riel , Mel Gorman , Hugh Dickins , Dave Hansen , Johannes Weiner , KOSAKI Motohiro , linux-mm@kvack.org, linux-kernel@vger.kernel.org, John Stultz , Jason Evans , Minchan Kim MADV_FREEed pages should be discarded before working set pages are reclaimed because most of users(ex, tcmalloc and jemalloc) have used it instead of MADV_DONTNEED which zap pages instantly. Signed-off-by: Minchan Kim --- mm/memory.c | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/memory.c b/mm/memory.c index 6f221225f62b..76b683e7d087 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1298,6 +1298,7 @@ static unsigned long lazyfree_pte_range(struct mmu_gather *tlb, ptent = pte_mkclean(ptent); set_pte_at(mm, addr, pte, ptent); tlb_remove_tlb_entry(tlb, pte, addr); + deactivate_page(page); } while (pte++, addr += PAGE_SIZE, addr != end); arch_leave_lazy_mmu_mode(); pte_unmap_unlock(start_pte, ptl); -- 1.9.0 -- 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