From nobody Fri Apr 10 17:05:36 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 E499CC28D13 for ; Mon, 22 Aug 2022 13:29:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235165AbiHVN3d convert rfc822-to-8bit (ORCPT ); Mon, 22 Aug 2022 09:29:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41442 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235153AbiHVN3J (ORCPT ); Mon, 22 Aug 2022 09:29:09 -0400 Received: from mx1.emlix.com (mx1.emlix.com [136.243.223.33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D6555140EF for ; Mon, 22 Aug 2022 06:29:01 -0700 (PDT) Received: from mailer.emlix.com (p5098be52.dip0.t-ipconnect.de [80.152.190.82]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.emlix.com (Postfix) with ESMTPS id 47F045FD66; Mon, 22 Aug 2022 15:04:37 +0200 (CEST) From: Rolf Eike Beer To: Andrew Morton Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH 4/6] mm: pagewalk: add api documentation for walk_page_range_novma() Date: Mon, 22 Aug 2022 15:02:36 +0200 Message-ID: <8991525.CDJkKcVGEf@devpool047> Organization: emlix GmbH In-Reply-To: <3200642.44csPzL39Z@devpool047> References: <3200642.44csPzL39Z@devpool047> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Rolf Eike Beer --- mm/pagewalk.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/mm/pagewalk.c b/mm/pagewalk.c index a06eb100fe4e..dc3c850cd148 100644 --- a/mm/pagewalk.c +++ b/mm/pagewalk.c @@ -493,7 +493,15 @@ int walk_page_range(struct mm_struct *mm, unsigned lon= g start, return 0; } =20 -/* +/** + * walk_page_range_novma - walk a range of pagetables not backed by a vma + * @mm: mm_struct representing the target process of page table walk + * @start: start address of the virtual address range + * @end: end address of the virtual address range + * @ops: operation to call during the walk + * @pgd: pgd to walk if different from mm->pgd + * @private: private data for callbacks' usage + * * Similar to walk_page_range() but can walk any page tables even if they = are * not backed by VMAs. Because 'unusual' entries may be walked this functi= on * will also not lock the PTEs for the pte_entry() callback. This is usefu= l for --=20 2.37.2 --=20 Rolf Eike Beer, emlix GmbH, http://www.emlix.com Fon +49 551 30664-0, Fax +49 551 30664-11 Gothaer Platz 3, 37083 G=C3=B6ttingen, Germany Sitz der Gesellschaft: G=C3=B6ttingen, Amtsgericht G=C3=B6ttingen HR B 3160 Gesch=C3=A4ftsf=C3=BChrung: Heike Jordan, Dr. Uwe Kracke =E2=80=93 Ust-IdNr= .: DE 205 198 055 emlix - smart embedded open source