From nobody Mon Feb 9 01:19:54 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 22A8EC7EE23 for ; Mon, 22 May 2023 05:04:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231693AbjEVFEP (ORCPT ); Mon, 22 May 2023 01:04:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48054 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231689AbjEVFEM (ORCPT ); Mon, 22 May 2023 01:04:12 -0400 Received: from mail-yw1-x1133.google.com (mail-yw1-x1133.google.com [IPv6:2607:f8b0:4864:20::1133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 68EC9F4 for ; Sun, 21 May 2023 22:04:11 -0700 (PDT) Received: by mail-yw1-x1133.google.com with SMTP id 00721157ae682-561c1ae21e7so73851677b3.0 for ; Sun, 21 May 2023 22:04:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1684731850; x=1687323850; h=mime-version:references:message-id:in-reply-to:subject:cc:to:from :date:from:to:cc:subject:date:message-id:reply-to; bh=gMNcXWmakk7P+zoeKodH9UUwH6aG3s17nHsuG14zY8Y=; b=yE9oBZ+c+KHVypY5gza4GB1+80d52bTCDbLI/Y6WgFZjswF85OgTmRueNohIKa5HCn RIW2Wnvd56WBT/PaJWNYgidoUhB8V5KAp9zJm+23i0kvJLcqYbw0yNLwpWS8EoUIgMXO 0057efgR9JUAdgc/f2mkKLwhOjnHnkDDKtEeFpSuOpxEwvKhw8lEmNKs6VxGMTFXq9W5 sSyOJRzgEjdA5DausOy5f9zrEnebUpaQfXGLkpy0BqfSupfqQaLTpS0g/cbhzJZLF6eH CdCRTra6FNLJCs5X7UtLw6KjHZYdHYr0T5056rVVYaa+mJu1Od1zuvThKJk70HtbvQjx SxKA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1684731850; x=1687323850; h=mime-version:references:message-id:in-reply-to:subject:cc:to:from :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=gMNcXWmakk7P+zoeKodH9UUwH6aG3s17nHsuG14zY8Y=; b=hkiQQMZ8kbDZ8Keo5biyQe2tdLlnBWKJ+ULT9N9Q5L7A+F7aXyTg248RXQ9sfHbSXC 3za5l5Bs23jNFVFXvzEfVC4ALwji6ZAZ3vXgb5g0HaK+dwhw3den5KyUrj0aYORalZ8t 7SmIZtMSN8hod9x7MrEhfsR71SPhlALRbD7EzceasRPpow83yvowuONxqG7rHDIJPLoI 8ex0JOYjpt5TOT+5bubnLViLXIBEPZVgDXEwHldlqXtFfaiYl3iBnXx27QYtfNLCvNCc f5sTjiVd4BVkxd7+COIYYBLZAGYs2inrERf4Ob+o8Oylp4l7oo4+hasAiFRugyTJBfpv lCtA== X-Gm-Message-State: AC+VfDzpQS7hLrvOH6HVD1WY7cndSqzkUSNBHUPZpKgmukKdeHNt+psi eQZSVXhejlQRqqLDOnsyROgdyg== X-Google-Smtp-Source: ACHHUZ4s2TnDnXPeA62RlJKiZrtDTHYAyZbSNbhHfgawNyc1d9fDfp4flHO3RJFgNx0d20xXc/Hleg== X-Received: by 2002:a0d:d656:0:b0:55d:c8fb:8f61 with SMTP id y83-20020a0dd656000000b0055dc8fb8f61mr10119663ywd.7.1684731850557; Sun, 21 May 2023 22:04:10 -0700 (PDT) Received: from ripple.attlocal.net (172-10-233-147.lightspeed.sntcca.sbcglobal.net. [172.10.233.147]) by smtp.gmail.com with ESMTPSA id t184-20020a0dd1c1000000b00555c30ec361sm1798344ywd.143.2023.05.21.22.04.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 21 May 2023 22:04:10 -0700 (PDT) Date: Sun, 21 May 2023 22:04:07 -0700 (PDT) From: Hugh Dickins X-X-Sender: hugh@ripple.attlocal.net To: Andrew Morton cc: Mike Kravetz , Mike Rapoport , "Kirill A. Shutemov" , Matthew Wilcox , David Hildenbrand , Suren Baghdasaryan , Qi Zheng , Yang Shi , Mel Gorman , Peter Xu , Peter Zijlstra , Will Deacon , Yu Zhao , Alistair Popple , Ralph Campbell , Ira Weiny , Steven Price , SeongJae Park , Naoya Horiguchi , Christophe Leroy , Zack Rusin , Jason Gunthorpe , Axel Rasmussen , Anshuman Khandual , Pasha Tatashin , Miaohe Lin , Minchan Kim , Christoph Hellwig , Song Liu , Thomas Hellstrom , linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 12/31] mm/vmalloc: vmalloc_to_page() use pte_offset_kernel() In-Reply-To: <68a97fbe-5c1e-7ac6-72c-7b9c6290b370@google.com> Message-ID: References: <68a97fbe-5c1e-7ac6-72c-7b9c6290b370@google.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" vmalloc_to_page() was using pte_offset_map() (followed by pte_unmap()), but it's intended for userspace page tables: prefer pte_offset_kernel(). Signed-off-by: Hugh Dickins Reviewed-by: Lorenzo Stoakes --- mm/vmalloc.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 9683573f1225..741722d247d5 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -703,11 +703,10 @@ struct page *vmalloc_to_page(const void *vmalloc_addr) if (WARN_ON_ONCE(pmd_bad(*pmd))) return NULL; =20 - ptep =3D pte_offset_map(pmd, addr); + ptep =3D pte_offset_kernel(pmd, addr); pte =3D *ptep; if (pte_present(pte)) page =3D pte_page(pte); - pte_unmap(ptep); =20 return page; } --=20 2.35.3