From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oi0-f54.google.com (mail-oi0-f54.google.com [209.85.218.54]) by kanga.kvack.org (Postfix) with ESMTP id 99D1E6B0253 for ; Mon, 27 Jul 2015 11:02:29 -0400 (EDT) Received: by oibn4 with SMTP id n4so52743911oib.3 for ; Mon, 27 Jul 2015 08:02:29 -0700 (PDT) Received: from bh-25.webhostbox.net (bh-25.webhostbox.net. [208.91.199.152]) by mx.google.com with ESMTPS id m64si13823872oif.44.2015.07.27.08.02.28 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Mon, 27 Jul 2015 08:02:28 -0700 (PDT) From: Guenter Roeck Subject: [PATCH -next] mm: Fix build breakage seen if MMU_NOTIFIER is not configured Date: Mon, 27 Jul 2015 08:02:23 -0700 Message-Id: <1438009343-25468-1-git-send-email-linux@roeck-us.net> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Guenter Roeck , Andres Lagar-Cavilla , Vladimir Davydov Commit 65525488fa86 ("proc: add kpageidle file") introduces code which depends on MMU_NOTIFIER, yet the newly introduced configuration flag does not declare that dependency. This results in the following build failures seen if IDLE_PAGE_TRACKING is configured but MMU_NOTIFIER is not. fs/proc/page.c: In function 'kpageidle_clear_pte_refs_one': fs/proc/page.c:341:4: error: implicit declaration of function 'pmdp_clear_young_notify' fs/proc/page.c:347:4: error: implicit declaration of function 'ptep_clear_young_notify' Fixes: 65525488fa86 ("proc: add kpageidle file") Cc: Andrew Morton Cc: Andres Lagar-Cavilla Cc: Vladimir Davydov Signed-off-by: Guenter Roeck --- mm/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/Kconfig b/mm/Kconfig index 7e9ccb438985..b73b41c3217b 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -651,6 +651,7 @@ config DEFERRED_STRUCT_PAGE_INIT config IDLE_PAGE_TRACKING bool "Enable idle page tracking" + depends on MMU_NOTIFIER select PROC_PAGE_MONITOR select PAGE_EXTENSION if !64BIT help -- 2.1.0 -- 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