From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ob0-f177.google.com (mail-ob0-f177.google.com [209.85.214.177]) by kanga.kvack.org (Postfix) with ESMTP id 674696B0009 for ; Sat, 23 Jan 2016 10:07:30 -0500 (EST) Received: by mail-ob0-f177.google.com with SMTP id yo10so60220825obb.2 for ; Sat, 23 Jan 2016 07:07:30 -0800 (PST) Received: from emea01-db3-obe.outbound.protection.outlook.com (mail-db3on0058.outbound.protection.outlook.com. [157.55.234.58]) by mx.google.com with ESMTPS id kz4si10072774obb.73.2016.01.23.07.07.29 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sat, 23 Jan 2016 07:07:29 -0800 (PST) From: Subject: [PATCH 2/4] arm: let set_memory_xx(addr, 0) succeed. Date: Sat, 23 Jan 2016 17:05:41 +0200 Message-ID: <1453561543-14756-3-git-send-email-mika.penttila@nextfour.com> In-Reply-To: <1453561543-14756-1-git-send-email-mika.penttila@nextfour.com> References: <1453561543-14756-1-git-send-email-mika.penttila@nextfour.com> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit Sender: owner-linux-mm@kvack.org List-ID: To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, rientjes@google.com, linux@arm.linux.org.uk, =?UTF-8?q?Mika=20Penttil=C3=A4?= From: Mika PenttilA? This makes set_memory_xx() consistent with x86. Signed-off-by: Mika PenttilA? mika.penttila@nextfour.com --- arch/arm/mm/pageattr.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm/mm/pageattr.c b/arch/arm/mm/pageattr.c index be7fe4b..9edf6b0 100644 --- a/arch/arm/mm/pageattr.c +++ b/arch/arm/mm/pageattr.c @@ -49,6 +49,9 @@ static int change_memory_common(unsigned long addr, int numpages, WARN_ON_ONCE(1); } + if (!numpages) + return 0; + if (start < MODULES_VADDR || start >= MODULES_END) return -EINVAL; -- 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