From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [119.145.14.65]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 578671A013F for ; Fri, 18 Jul 2014 18:17:09 +1000 (EST) From: Wang Nan To: Ingo Molnar , Yinghai Lu , "Mel Gorman" , Andrew Morton Subject: [PATCH 3/5] memory-hotplug: ia64: suitable memory should go to ZONE_MOVABLE Date: Fri, 18 Jul 2014 15:56:01 +0800 Message-ID: <1405670163-53747-4-git-send-email-wangnan0@huawei.com> In-Reply-To: <1405670163-53747-1-git-send-email-wangnan0@huawei.com> References: <1405670163-53747-1-git-send-email-wangnan0@huawei.com> MIME-Version: 1.0 Content-Type: text/plain Cc: linux-ia64@vger.kernel.org, Pei Feiyue , linux-sh@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This patch add new memory to ZONE_MOVABLE if movable zone is setup and lower than newly added memory for ia64. Signed-off-by: Wang Nan --- arch/ia64/mm/init.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index 25c3502..d81c916 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -625,6 +625,7 @@ int arch_add_memory(int nid, u64 start, u64 size) { pg_data_t *pgdat; struct zone *zone; + struct zone *movable_zone; unsigned long start_pfn = start >> PAGE_SHIFT; unsigned long nr_pages = size >> PAGE_SHIFT; int ret; @@ -632,6 +633,12 @@ int arch_add_memory(int nid, u64 start, u64 size) pgdat = NODE_DATA(nid); zone = pgdat->node_zones + ZONE_NORMAL; + movable_zone = pgdat->node_zones + ZONE_MOVABLE; + if (!zone_is_empty(movable_zone)) + if (zone_spans_pfn(movable_zone, start_pfn) || + (zone_end_pfn(movable_zone) <= start_pfn)) + zone = movable_zone; + ret = __add_pages(nid, zone, start_pfn, nr_pages); if (ret) -- 1.8.4