Message ID | 28f05e49c92b2a69c4703323d6c12208f3d881fe.1563904656.git.andreyknvl@google.com (mailing list archive) |
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State | New, archived |
Headers | show
Return-Path: <kvm-owner@kernel.org> Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2FACB13A4 for <patchwork-kvm@patchwork.kernel.org>; Tue, 23 Jul 2019 17:59:31 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 213DD286C6 for <patchwork-kvm@patchwork.kernel.org>; Tue, 23 Jul 2019 17:59:31 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 13363286E0; Tue, 23 Jul 2019 17:59:31 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.5 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI, USER_IN_DEF_DKIM_WL autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F0FE0286C8 for <patchwork-kvm@patchwork.kernel.org>; Tue, 23 Jul 2019 17:59:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391310AbfGWR72 (ORCPT <rfc822;patchwork-kvm@patchwork.kernel.org>); Tue, 23 Jul 2019 13:59:28 -0400 Received: from mail-vk1-f202.google.com ([209.85.221.202]:54277 "EHLO mail-vk1-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391293AbfGWR71 (ORCPT <rfc822;kvm@vger.kernel.org>); Tue, 23 Jul 2019 13:59:27 -0400 Received: by mail-vk1-f202.google.com with SMTP id l7so43948vkm.21 for <kvm@vger.kernel.org>; Tue, 23 Jul 2019 10:59:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=/huzVrn6iDinNK3gESNF6fMWuVj1J0a8E8YliY+JUMI=; b=Y7zAf+EqSsPzgFlPRtHiU2eaf3uvF3mBfxNqtK2dkyuo3VTBYXjjpviaGnsQe0yYUQ RZjdFooS3ZC7uUt58aVI/4cdpsAs60vswb3AsNKQ+PFZtVBvzHw5kY0TqkqeCmyj7riF mtQh5FnaNVG9iaAtW+G98/NdplTTfZ9IkSgAzb8usp7NHgKVNq41drkIZNhCHbFrZwbP oh8Z0GVIBTZb34XQapQJ/Cc8NMSc6thxgEsgQUYNQcR1lgRqwCY4KcosdJFpWo+DlmgQ eRBAMO05IGodFWFysR4D+7FGT50746wIbh4QySN2wsOGOenRi1KIej0OqRFaxZbG5kzF UnOg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=/huzVrn6iDinNK3gESNF6fMWuVj1J0a8E8YliY+JUMI=; b=mpBeEfQ/L0/uZj5DgSe6IyC5zh7r9sMfuNmyWj4kGinm33aou7CFBaxfZkqNO/yFQJ 35Zp/hlqiAGHJnN0fr2YSlPlpcS0dmXKSxrD3e/9M/KOVuaYa4y+Fp6Q8y05tSwqh4ty XHopP0CQP2M2v+cwhyWPie6tNit7pN8U4bXtsk48/p/Z3cdJOQrjeG1jnbOxZUtoeyAH 6npTwjA0HuMWfCLr0NOAoUyTjmMLEJIXN2bn/E97YqLXI72zuJ2pORopxkoxG37MpFYA aTEuy179RTTRHVe7jVLxfhavlAZNTLudc2g3y8DgEMxluarja6ZgVz8ZHABSm5E4QDVO 2B5Q== X-Gm-Message-State: APjAAAXegfPgalG6SSeWCaXhdyhIq32mNgPN60kDfpZ06GmeX8VBH+8T Yc3oryvtY0OarLUYd6GhHn+83p8mE1DZD9kc X-Google-Smtp-Source: APXvYqza4RkKEiX9RSMJ4O0WeYRSe7jZPKwJC2E9aqA1oTke3kgtphbjO4en0GBzP/IdlZCHDhS+pYVnwN9x8xEl X-Received: by 2002:ab0:1c2:: with SMTP id 60mr34283049ual.78.1563904765450; Tue, 23 Jul 2019 10:59:25 -0700 (PDT) Date: Tue, 23 Jul 2019 19:58:43 +0200 In-Reply-To: <cover.1563904656.git.andreyknvl@google.com> Message-Id: <28f05e49c92b2a69c4703323d6c12208f3d881fe.1563904656.git.andreyknvl@google.com> Mime-Version: 1.0 References: <cover.1563904656.git.andreyknvl@google.com> X-Mailer: git-send-email 2.22.0.709.g102302147b-goog Subject: [PATCH v19 06/15] mm: untag user pointers in get_vaddr_frames From: Andrey Konovalov <andreyknvl@google.com> To: linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-rdma@vger.kernel.org, linux-media@vger.kernel.org, kvm@vger.kernel.org, linux-kselftest@vger.kernel.org Cc: Catalin Marinas <catalin.marinas@arm.com>, Vincenzo Frascino <vincenzo.frascino@arm.com>, Will Deacon <will.deacon@arm.com>, Mark Rutland <mark.rutland@arm.com>, Andrew Morton <akpm@linux-foundation.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Kees Cook <keescook@chromium.org>, Yishai Hadas <yishaih@mellanox.com>, Felix Kuehling <Felix.Kuehling@amd.com>, Alexander Deucher <Alexander.Deucher@amd.com>, Christian Koenig <Christian.Koenig@amd.com>, Mauro Carvalho Chehab <mchehab@kernel.org>, Jens Wiklander <jens.wiklander@linaro.org>, Alex Williamson <alex.williamson@redhat.com>, Leon Romanovsky <leon@kernel.org>, Luc Van Oostenryck <luc.vanoostenryck@gmail.com>, Dave Martin <Dave.Martin@arm.com>, Khalid Aziz <khalid.aziz@oracle.com>, enh <enh@google.com>, Jason Gunthorpe <jgg@ziepe.ca>, Christoph Hellwig <hch@infradead.org>, Dmitry Vyukov <dvyukov@google.com>, Kostya Serebryany <kcc@google.com>, Evgeniy Stepanov <eugenis@google.com>, Lee Smith <Lee.Smith@arm.com>, Ramana Radhakrishnan <Ramana.Radhakrishnan@arm.com>, Jacob Bramley <Jacob.Bramley@arm.com>, Ruben Ayrapetyan <Ruben.Ayrapetyan@arm.com>, Robin Murphy <robin.murphy@arm.com>, Kevin Brodsky <kevin.brodsky@arm.com>, Szabolcs Nagy <Szabolcs.Nagy@arm.com>, Andrey Konovalov <andreyknvl@google.com> Content-Type: text/plain; charset="UTF-8" Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: <kvm.vger.kernel.org> X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP |
Series |
arm64: untag user pointers passed to the kernel
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diff --git a/mm/frame_vector.c b/mm/frame_vector.c index c64dca6e27c2..c431ca81dad5 100644 --- a/mm/frame_vector.c +++ b/mm/frame_vector.c @@ -46,6 +46,8 @@ int get_vaddr_frames(unsigned long start, unsigned int nr_frames, if (WARN_ON_ONCE(nr_frames > vec->nr_allocated)) nr_frames = vec->nr_allocated; + start = untagged_addr(start); + down_read(&mm->mmap_sem); locked = 1; vma = find_vma_intersection(mm, start, start + 1);