From patchwork Tue Sep 16 05:09:30 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Wang, Yalin" X-Patchwork-Id: 4914841 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 488DCBEEA5 for ; Tue, 16 Sep 2014 05:15:36 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 80C6C201BF for ; Tue, 16 Sep 2014 05:15:35 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A17CD2017D for ; Tue, 16 Sep 2014 05:15:34 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1XTl4N-00016L-1a; Tue, 16 Sep 2014 05:12:51 +0000 Received: from cnbjrel01.sonyericsson.com ([219.141.167.165]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1XTl4K-00013l-CG for linux-arm-kernel@lists.infradead.org; Tue, 16 Sep 2014 05:12:48 +0000 From: "Wang, Yalin" To: 'Russell King - ARM Linux' , 'Jiang Liu' , "'linux-mm@kvack.org'" , 'Will Deacon' , "'linux-kernel@vger.kernel.org'" , "'linux-arm-kernel@lists.infradead.org'" Date: Tue, 16 Sep 2014 13:09:30 +0800 Subject: [RFC] change keep_initrd and free_initrd_mem into .init section Thread-Topic: [RFC] change keep_initrd and free_initrd_mem into .init section Thread-Index: Ac/RbGU0znnwtjO0SdCctZwc0yijzQ== Message-ID: <35FD53F367049845BC99AC72306C23D103D6DB49160E@CNBJMBX05.corpusers.net> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140915_221248_575324_72A06734 X-CRM114-Status: UNSURE ( 7.82 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.3 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP this patch change keep_initrd to __initdata section, and free_initrd_mem to __init section so that they can be freed by free_initmem, free_initrd_mem is only called by free_initrd function, so it's safe to free it after use. Signed-off-by: Yalin Wang --- arch/arm/mm/init.c | 4 ++-- arch/arm64/mm/init.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 659c75d..907dee1 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -631,9 +631,9 @@ void free_initmem(void) #ifdef CONFIG_BLK_DEV_INITRD -static int keep_initrd; +static int __initdata keep_initrd; -void free_initrd_mem(unsigned long start, unsigned long end) +void __init free_initrd_mem(unsigned long start, unsigned long end) { if (!keep_initrd) { poison_init_mem((void *)start, PAGE_ALIGN(end) - start); diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 5472c24..7268d57 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -330,9 +330,9 @@ void free_initmem(void) #ifdef CONFIG_BLK_DEV_INITRD -static int keep_initrd; +static int __initdata keep_initrd; -void free_initrd_mem(unsigned long start, unsigned long end) +void __init free_initrd_mem(unsigned long start, unsigned long end) { if (!keep_initrd) free_reserved_area((void *)start, (void *)end, 0, "initrd");