From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 77709ECE58E for ; Tue, 15 Oct 2019 00:49:44 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4F37121848 for ; Tue, 15 Oct 2019 00:49:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Vk6/CLx7"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="tsYGr7Mg" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4F37121848 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=zRsy/0pcmLh65P5z6E157TFm2nXwpa58/mpi0nE9P/4=; b=Vk6/CLx7WaFOAZ sb1vw9D3bhlXFdWVShXY6AYXn4KIXapmoIfo1ZCIBj5VCVsk5Za0/JY9Su2b/JvZoD8UNNs6Sn7Fd 0LNt3RKgK7wGKFOorpXnrjsAcrsYExJxoShl23kF98lODR1XhHddKjVeVn9JIspeM7Ctt17yFkiAg hTJy5dXZ7xUYmQUg8vqAgKADqOOmngS0GAYRzB1NP99N7QBQrYIDKaBuQRx6tvGE2gQyG7yhXgiQL 6Y846oiZuT2op8xMKWMtHuofwjFTRn/+Ni4I35DjKGelOjKD/L8Hvl2lUIPIsx/83qUAevc5UoFdQ ntGUEEfPtaHcbNJnSDhg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iKB1z-0004a7-Vo; Tue, 15 Oct 2019 00:49:43 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iKB1x-0004Zj-Uz for linux-arm-kernel@lists.infradead.org; Tue, 15 Oct 2019 00:49:43 +0000 Received: from willie-the-truck (236.31.169.217.in-addr.arpa [217.169.31.236]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9DD572089C; Tue, 15 Oct 2019 00:49:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1571100581; bh=CgE11hawVJ9EsRwk+NsDx1KZAHE6/9MksHlbAGE28k8=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=tsYGr7MgAutV7j+jrOeyibptBcDd1dF/Y656vQVg0tVCcG0ebxJZn9flLkyt2T7zS nT4VUAky3qihI4XTR/iN1Zauma1Bq85/KOQ4WSkwqD1FZJa5r5I6UwqV2E9dQjdbmV XG9iml9waMLUfmDaQCUb/3g5j36LxT4pMaC15U5Y= Date: Tue, 15 Oct 2019 01:49:37 +0100 From: Will Deacon To: Anshuman Khandual Subject: Re: [PATCH] arm64/mm: Poison initmem while freeing with free_reserved_area() Message-ID: <20191015004937.3khj7obh3la5qwdu@willie-the-truck> References: <1570163038-32067-1-git-send-email-anshuman.khandual@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1570163038-32067-1-git-send-email-anshuman.khandual@arm.com> User-Agent: NeoMutt/20170113 (1.7.2) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191014_174942_014769_20BDFEC6 X-CRM114-Status: GOOD ( 13.85 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Catalin Marinas , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Oct 04, 2019 at 09:53:58AM +0530, Anshuman Khandual wrote: > Platform implementation for free_initmem() should poison the memory while > freeing it up. Hence pass across POISON_FREE_INITMEM while calling into > free_reserved_area(). The same is being followed in the generic fallback > for free_initmem() and some other platforms overriding it. > > Cc: Catalin Marinas > Cc: Will Deacon > Cc: Mark Rutland > Cc: linux-kernel@vger.kernel.org > Signed-off-by: Anshuman Khandual > --- > arch/arm64/mm/init.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c > index 45c00a54909c..ea7d38011e83 100644 > --- a/arch/arm64/mm/init.c > +++ b/arch/arm64/mm/init.c > @@ -571,7 +571,7 @@ void free_initmem(void) > { > free_reserved_area(lm_alias(__init_begin), > lm_alias(__init_end), > - 0, "unused kernel"); > + POISON_FREE_INITMEM, "unused kernel"); Acked-by: Will Deacon Will _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel