From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f44.google.com (mail-pa0-f44.google.com [209.85.220.44]) by kanga.kvack.org (Postfix) with ESMTP id CBEEF6B0071 for ; Wed, 24 Jun 2015 20:43:02 -0400 (EDT) Received: by pactm7 with SMTP id tm7so38709844pac.2 for ; Wed, 24 Jun 2015 17:43:02 -0700 (PDT) Received: from lgemrelse7q.lge.com (LGEMRELSE7Q.lge.com. [156.147.1.151]) by mx.google.com with ESMTP id t13si42253367pdl.149.2015.06.24.17.42.54 for ; Wed, 24 Jun 2015 17:42:55 -0700 (PDT) From: Joonsoo Kim Subject: [RFC PATCH 03/10] mm/compaction: always update cached pfn Date: Thu, 25 Jun 2015 09:45:14 +0900 Message-Id: <1435193121-25880-4-git-send-email-iamjoonsoo.kim@lge.com> In-Reply-To: <1435193121-25880-1-git-send-email-iamjoonsoo.kim@lge.com> References: <1435193121-25880-1-git-send-email-iamjoonsoo.kim@lge.com> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Vlastimil Babka , Mel Gorman , Rik van Riel , David Rientjes , Minchan Kim , Joonsoo Kim Signed-off-by: Joonsoo Kim --- mm/compaction.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/mm/compaction.c b/mm/compaction.c index 9c5d43c..2d8e211 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -510,6 +510,10 @@ isolate_fail: if (locked) spin_unlock_irqrestore(&cc->zone->lock, flags); + if (blockpfn == end_pfn && + blockpfn > cc->zone->compact_cached_free_pfn) + cc->zone->compact_cached_free_pfn = blockpfn; + update_pageblock_skip(cc, valid_page, total_isolated, *start_pfn, end_pfn, blockpfn, false); @@ -811,6 +815,13 @@ isolate_success: if (locked) spin_unlock_irqrestore(&zone->lru_lock, flags); + if (low_pfn == end_pfn && cc->mode != MIGRATE_ASYNC) { + int sync = cc->mode != MIGRATE_ASYNC; + + if (low_pfn > zone->compact_cached_migrate_pfn[sync]) + zone->compact_cached_migrate_pfn[sync] = low_pfn; + } + update_pageblock_skip(cc, valid_page, nr_isolated, start_pfn, end_pfn, low_pfn, true); -- 1.9.1 -- 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