From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wj0-f198.google.com (mail-wj0-f198.google.com [209.85.210.198]) by kanga.kvack.org (Postfix) with ESMTP id C556E6B025E for ; Fri, 3 Feb 2017 03:04:08 -0500 (EST) Received: by mail-wj0-f198.google.com with SMTP id kq3so2806733wjc.1 for ; Fri, 03 Feb 2017 00:04:08 -0800 (PST) Received: from szxga02-in.huawei.com (szxga02-in.huawei.com. [119.145.14.65]) by mx.google.com with ESMTPS id 108si31581592wrc.318.2017.02.03.00.04.05 for (version=TLS1 cipher=AES128-SHA bits=128/128); Fri, 03 Feb 2017 00:04:06 -0800 (PST) From: Yisheng Xie Subject: [PATCH v6 2/4] mm/migration: make isolate_movable_page always defined Date: Fri, 3 Feb 2017 15:59:28 +0800 Message-ID: <1486108770-630-3-git-send-email-xieyisheng1@huawei.com> In-Reply-To: <1486108770-630-1-git-send-email-xieyisheng1@huawei.com> References: <1486108770-630-1-git-send-email-xieyisheng1@huawei.com> MIME-Version: 1.0 Content-Type: text/plain Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org, linux-kernel@vger.kernel.org, akpm@linux-foundation.org Cc: mhocko@kernel.org, minchan@kernel.org, ak@linux.intel.com, guohanjun@huawei.com, hannes@cmpxchg.org, iamjoonsoo.kim@lge.com, mgorman@techsingularity.net, n-horiguchi@ah.jp.nec.com, arbab@linux.vnet.ibm.com, izumi.taku@jp.fujitsu.com, vkuznets@redhat.com, vbabka@suse.cz, qiuxishi@huawei.com Define isolate_movable_page as a static inline function when CONFIG_MIGRATION is not enable. It should return -EBUSY here which means failed to isolate movable pages. This patch do not have any functional change but prepare for later patch. Signed-off-by: Yisheng Xie Acked-by: Minchan Kim Suggested-by: Michal Hocko Cc: Naoya Horiguchi Cc: Vlastimil Babka Cc: Andi Kleen Cc: Hanjun Guo Cc: Johannes Weiner Cc: Joonsoo Kim Cc: Mel Gorman Cc: Reza Arbab Cc: Taku Izumi Cc: Vitaly Kuznetsov Cc: Xishi Qiu --- include/linux/migrate.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/migrate.h b/include/linux/migrate.h index 43d5deb..fa76b51 100644 --- a/include/linux/migrate.h +++ b/include/linux/migrate.h @@ -56,6 +56,8 @@ static inline int migrate_pages(struct list_head *l, new_page_t new, free_page_t free, unsigned long private, enum migrate_mode mode, int reason) { return -ENOSYS; } +static inline int isolate_movable_page(struct page *page, isolate_mode_t mode) + { return -EBUSY; } static inline int migrate_prep(void) { return -ENOSYS; } static inline int migrate_prep_local(void) { return -ENOSYS; } -- 1.7.12.4 -- 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