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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B3769103E17A for ; Wed, 18 Mar 2026 14:41:02 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id E31CD6B025B; Wed, 18 Mar 2026 10:41:01 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id DE34F6B025C; Wed, 18 Mar 2026 10:41:01 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id CD17B6B025D; Wed, 18 Mar 2026 10:41:01 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id BA5826B025B for ; Wed, 18 Mar 2026 10:41:01 -0400 (EDT) Received: from smtpin22.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay05.hostedemail.com (Postfix) with ESMTP id 5BD275B1A3 for ; Wed, 18 Mar 2026 14:41:01 +0000 (UTC) X-FDA: 84559445922.22.1132B94 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf29.hostedemail.com (Postfix) with ESMTP id 7B85612000D for ; Wed, 18 Mar 2026 14:40:59 +0000 (UTC) Authentication-Results: imf29.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=ngbdPPAx; spf=pass (imf29.hostedemail.com: domain of vbabka@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=vbabka@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1773844859; h=from:from:sender: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:dkim-signature; bh=f6SQBnbLtk/tDiFJtuG2lyke9l9pURsRfwk7gcmlJ5k=; b=b+48xM3PBuJp/HIxsq4w1TtBfvDadh08v2I0rJSXReWV6nBdJ2sv87nUuSGJ4r50/9UIVj ziqPb1jXADDh0Ab4lTNrdkOaw5LALgLOurOZmKDPBTEiTZapEp9CmktkvKxW/vbXU8P1hb qtQHXsLVtQ3/MIzPlwsMO42N5lgG8p4= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1773844859; a=rsa-sha256; cv=none; b=QzOf0R5crpDwiZWsbEzWXycy1zRvlRPU5LB+/W67DEpZOQiUw9AkI+48wEwEQ5HsbzPkyF rA6jQtDpZ8xm4L7Pb6gsdekphbdU1MWGAgbP33RRxAWQGl++0qvY8kMdgouCp+QK1YcG0s G3ZTryZzpQGoxN+/PPhg6CtKXYFBQrM= ARC-Authentication-Results: i=1; imf29.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=ngbdPPAx; spf=pass (imf29.hostedemail.com: domain of vbabka@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=vbabka@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 773FE432F4; Wed, 18 Mar 2026 14:40:58 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 00F29C2BC87; Wed, 18 Mar 2026 14:40:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773844858; bh=QPe6wXvdAXZ1WsVrzW/I1Ea8rZgbDN6tCubJm34Z2So=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=ngbdPPAxWjFSAiZvMouaeaCI+yNsZe/5Ks8XfwK23bbuJ+JwMl7yKx8wLk1AN3mNT TMgJMbhcekeQl6cZDmfGyt8APhVYsofGCMvUz7w5d4VSUqCEDHmA0FWwHmr908obc6 Ca6I5aFuRQUI1yi4z3tpGvtErfL8rr5nKPdU3xQY3LcDhPRgWknRM3aO06irdxNWBm 2TlgtJ0ipwGbJWHORKvyo/BwbM/qZgR2EjBk9w3ApuIqc+XrUbVpU21pCoE11NYSNq L1oljmENCVJ0s9YwPt8FVfCFDTEwjEsGgigo721LFalxDK0WN06IRwXdh82jFvxUSk UiZTvvvmHDYJQ== Message-ID: <4620167c-bcfe-414b-85f6-a5d28563b9af@kernel.org> Date: Wed, 18 Mar 2026 15:40:45 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 01/23] mm/vma: add vma_flags_empty(), vma_flags_and(), vma_flags_diff_pair() Content-Language: en-US To: "Lorenzo Stoakes (Oracle)" , Andrew Morton Cc: David Hildenbrand , "Liam R . Howlett" , Jann Horn , Pedro Falcato , Mike Rapoport , Suren Baghdasaryan , Kees Cook , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Vineet Gupta , Russell King , Catalin Marinas , Will Deacon , Brian Cain , Huacai Chen , WANG Xuerui , Thomas Bogendoerfer , Dinh Nguyen , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H . Peter Anvin" , Richard Weinberger , Anton Ivanov , Johannes Berg , Alexander Viro , Christian Brauner , Jan Kara , Xu Xin , Chengming Zhou , Michal Hocko , Paul Moore , Stephen Smalley , Ondrej Mosnacek , linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-um@lists.infradead.org, linux-fsdevel@vger.kernel.org, selinux@vger.kernel.org References: From: "Vlastimil Babka (SUSE)" In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Stat-Signature: 39qoic3w3d9bgopc1tjnrajymrf6gaad X-Rspam-User: X-Rspamd-Queue-Id: 7B85612000D X-Rspamd-Server: rspam12 X-HE-Tag: 1773844859-900115 X-HE-Meta: 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 Oktpp48n cz1FGc1TRSRJTYQbZFgq0OKvxl9hl+IBmiYfAGsQLghI5htpPLEuvuCzVNXrJR9pjdvdrnsf1FpzNlD9lXc0yRGEZq9v4rWjMBKgPoOBGcBGo6deih86pwpZO7EUKMEuxeMdtrU32vSyEbSkSs/1BtIcYk1JgzzBp2nY7LH+o+mL2ouPCRmkp1NWUdySICryM3tDn0TGYheQDotqT704CsXMIO6+UXgkiTH42xBzHoe/5RbF2R6gr4UXjg1ujyVK1UshrHC40Dlnl/hQr8uiibNHsZTeFH9qxbRctaV5FuVj49kls3D5F4LCLg4FHwMmJ1/ezaOeq85Wa1kOgPF9wXL+vWQ9syfUkMS2AsbbqlixXDXi+wZQ6sToWNvhXxNGS1ePsDzqaXXD/zd8HGSRxTF7eaw== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 3/16/26 14:07, Lorenzo Stoakes (Oracle) wrote: > Firstly, add the ability to determine if VMA flags are empty, that is no > flags are set in a vma_flags_t value. > > Next, add the ability to obtain the equivalent of the bitwise and of two > vma_flags_t values, via vma_flags_and(). Nit: "two values" is vma_flags_and_mask(), while vma_flags_and() takes one value and list of flags, no? > Next, add the ability to obtain the difference between two sets of VMA > flags, that is the equivalent to the exclusive bitwise OR of the two sets > of flags, via vma_flags_diff_pair(). > > vma_flags_xxx_mask() typically operates on a pointer to a vma_flags_t > value, which is assumed to be an lvalue of some kind (such as a field in a > struct or a stack variable) and an rvalue of some kind (typically a > constant set of VMA flags obtained e.g. via mk_vma_flags() or equivalent). > > However vma_flags_diff_pair() is intended to operate on two lvalues, so use > the _pair() suffix to make this clear. > > Finally, update VMA userland tests to add these helpers. > > We also port bitmap_xor() and __bitmap_xor() to the tools/ headers and > source to allow the tests to work with vma_flags_diff_pair(). > > Signed-off-by: Lorenzo Stoakes (Oracle) Acked-by: Vlastimil Babka (SUSE)