Received: by 2002:a25:6193:0:0:0:0:0 with SMTP id v141csp4735476ybb; Tue, 7 Apr 2020 13:25:24 -0700 (PDT) X-Google-Smtp-Source: APiQypKdcJR3Wa1QtYukOVWQuAvu0ux3TRPOiDqwjwCG5azO+CZzt40nXuzAS5/6mpUCX4fSucN7 X-Received: by 2002:a9d:6289:: with SMTP id x9mr3082635otk.46.1586291124582; Tue, 07 Apr 2020 13:25:24 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1586291124; cv=none; d=google.com; s=arc-20160816; b=uZcVTp9oi5cpUezewsToXq3EsnC8MElN2LchfEAuPOQlYOnGpT+2+lAaeXpNs6cCfa sHI9j82L+gNUH3i6X+IUWpR+h2owt9WSU3UHFC8wTY4o1e48lXEd5lc/C72sFZTzlwUk ekA62pNjoBHh260mw5/687OQP0FyXFqNlW89Ka14L0wMUbWwTSlG13Kko5p0GVTG11mc Q5LUqweexq70nzvTJ7eh0+S/8k7NEvW5fa/tdz+Zt5UEnZmZTtxd9tyjMTA3VdtUKVdN hgkQ88Fy5/4REq5EwmZidp9RyWbobHUIsqWJdzv1g88W38iNXR8JTwqHxJ+ILaSRYExd hKbg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-language :content-transfer-encoding:in-reply-to:mime-version:user-agent:date :message-id:organization:from:references:cc:to:subject :dkim-signature; bh=4/CqPjYKIqhLe6o90l4etdHa0avAv3myBuxrGVzJJlk=; b=VOqPxMAgweeu41u1IwHzpl50l/GugSqfJdg2uoYsRU4Rf6o+6xQ+HauUqHP+5AQ0IX +UpOtNiKlgJWh6fhSA+aWgvj3rf5qNGxp5vECxn+g/pvvl1tzlK0M5CrK1cxdHowegbS OUzdeUyQkvtC/CvR5Rtpfz10GNIzQwCyW+Ng2+mno1bWkhbuRBLxo79mYooZTUm1mbZq ZVq/NIB3gXP2/hqK5wzeSEXo/A9gYfwNsekvoxVQxGl2dFo7v6DJ80jCrjQ/kIuY3C9l bDmF8Iyj32MkrWG7B5I0KLoAmeiEh4mHIJD5mU88bUTM0gIi45cX2CWr+5yJCS6kvxmC 9q4Q== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=Rs5QZ5k0; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id s5si1628393ood.66.2020.04.07.13.25.10; Tue, 07 Apr 2020 13:25:24 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=Rs5QZ5k0; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726406AbgDGUYd (ORCPT + 99 others); Tue, 7 Apr 2020 16:24:33 -0400 Received: from us-smtp-1.mimecast.com ([207.211.31.81]:22720 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726277AbgDGUYc (ORCPT ); Tue, 7 Apr 2020 16:24:32 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1586291071; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=4/CqPjYKIqhLe6o90l4etdHa0avAv3myBuxrGVzJJlk=; b=Rs5QZ5k0xvm+54gwbwIXO7SKbvbAFNEcVXp/QdDklfl4KaE7lz8jM1P5zWz+E8WF3RPanj vXNrV1j7Ddjx3xqKfeQ2PK4elQQUxshRsfntpXaqNB4Pm+a/p6FRx8l1/xEKsxl8qE63Fo YoGTSa+pozMOqwyux9Z+qhROwXfFunc= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-429-60P6iwMSPu-ID1hyPHX0oA-1; Tue, 07 Apr 2020 16:24:30 -0400 X-MC-Unique: 60P6iwMSPu-ID1hyPHX0oA-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 50574190D341; Tue, 7 Apr 2020 20:24:28 +0000 (UTC) Received: from llong.remote.csb (ovpn-117-180.rdu2.redhat.com [10.10.117.180]) by smtp.corp.redhat.com (Postfix) with ESMTP id D52ED19C7F; Tue, 7 Apr 2020 20:24:26 +0000 (UTC) Subject: Re: [PATCH v3] mm: Add kvfree_sensitive() for freeing sensitive data objects To: David Howells Cc: Andrew Morton , Jarkko Sakkinen , James Morris , "Serge E. Hallyn" , linux-mm@kvack.org, keyrings@vger.kernel.org, linux-kernel@vger.kernel.org, Linus Torvalds , Joe Perches , Matthew Wilcox , David Rientjes References: <20200407200318.11711-1-longman@redhat.com> <694135.1586290793@warthog.procyon.org.uk> From: Waiman Long Organization: Red Hat Message-ID: <025eb655-4c3f-6196-7f55-2987022c9b42@redhat.com> Date: Tue, 7 Apr 2020 16:24:26 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2 MIME-Version: 1.0 In-Reply-To: <694135.1586290793@warthog.procyon.org.uk> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Content-Language: en-US X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 4/7/20 4:19 PM, David Howells wrote: > Waiman Long wrote: > >> sensitive data objects allocated by kvmalloc(). The relevnat places > "relevant". Oh, sorry about the typo. Maybe Andrew can fix it. Cheers, Longman