From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C231A2550D5; Mon, 19 Jan 2026 22:31:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768861906; cv=none; b=MRdqJ7M3qmNBQOHvhvL6aqUt/FEuT3JA5HMnlL9SSOfM7rqpVuplas/E103ige7aSS0yREHRnQni5wfZykT82AO1F3C/HejTHcOL+0o85GQOzN+QbIgh1S9xg7CcwQge1josExiTtJgilBgNGfkLZzGU60z8zEJcVkX8FEw45DE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768861906; c=relaxed/simple; bh=oqpIfT+mzQAk3T54PAXHp0Pm+DiScyEeJPjtbgx0I5A=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=nIqibcZ74BwpVDRPNyLHEGuXvvKwG6HBdHlQl9HG/moqJg4CfzeMhQnTJjMRqgbhQKr8ZZxLPLEYPwa8+a/AgJLy/l5gePy7hq3NwUnX+Cdrzsnh15PWt84vE22RvjwL6xbi15PZJijaBOwPnM5C6El+Cr3T9KIY1pirHTZAbp4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=OxLgiN48; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="OxLgiN48" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C4F3CC116C6; Mon, 19 Jan 2026 22:31:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1768861906; bh=oqpIfT+mzQAk3T54PAXHp0Pm+DiScyEeJPjtbgx0I5A=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=OxLgiN48khFO0GWIVMoWXCGqPJd1B0QeRfpnolsVbzO9Ah+tj9WEQjdNWBCwaAxyP sKfd47WNfJg3xDX+c5IoTe7hliHsBtLSPxt2wGvkBF6ii0NOHc74kGfgXtdvMJwOBO ipLOS0CjlE2AYTphl5NDpqC9ARu5y0Jo6gTUGpmg= Date: Mon, 19 Jan 2026 14:31:43 -0800 From: Andrew Morton To: Lorenzo Stoakes Cc: Jarkko Sakkinen , Dave Hansen , Thomas Gleixner , Ingo Molnar , Borislav Petkov , x86@kernel.org, "H . Peter Anvin" , Arnd Bergmann , Greg Kroah-Hartman , Dan Williams , Vishal Verma , Dave Jiang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , Christian Koenig , Huang Rui , Matthew Auld , Matthew Brost , Alexander Viro , Christian Brauner , Jan Kara , Benjamin LaHaise , Gao Xiang , Chao Yu , Yue Hu , Jeffle Xu , Sandeep Dhavale , Hongbo Li , Chunhai Guo , Theodore Ts'o , Andreas Dilger , Muchun Song , Oscar Salvador , David Hildenbrand , Konstantin Komarov , Mike Marshall , Martin Brandenburg , Tony Luck , Reinette Chatre , Dave Martin , James Morse , Babu Moger , Carlos Maiolino , Damien Le Moal , Naohiro Aota , Johannes Thumshirn , Matthew Wilcox , "Liam R . Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Hugh Dickins , Baolin Wang , Zi Yan , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Jann Horn , Pedro Falcato , David Howells , Paul Moore , James Morris , "Serge E . Hallyn" , Yury Norov , Rasmus Villemoes , linux-sgx@vger.kernel.org, linux-kernel@vger.kernel.org, nvdimm@lists.linux.dev, linux-cxl@vger.kernel.org, dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, linux-fsdevel@vger.kernel.org, linux-aio@kvack.org, linux-erofs@lists.ozlabs.org, linux-ext4@vger.kernel.org, linux-mm@kvack.org, ntfs3@lists.linux.dev, devel@lists.orangefs.org, linux-xfs@vger.kernel.org, keyrings@vger.kernel.org, linux-security-module@vger.kernel.org, Jason Gunthorpe Subject: Re: [PATCH RESEND 00/12] mm: add bitmap VMA flag helpers and convert all mmap_prepare to use them Message-Id: <20260119143143.c7ad8551748eea4ec2b83340@linux-foundation.org> In-Reply-To: References: X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: ntfs3@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Mon, 19 Jan 2026 21:19:02 +0000 Lorenzo Stoakes wrote: > We introduced the bitmap VMA type vma_flags_t in the aptly named commit > 9ea35a25d51b ("mm: introduce VMA flags bitmap type") in order to permit > future growth in VMA flags and to prevent the asinine requirement that VMA > flags be available to 64-bit kernels only if they happened to use a bit > number about 32-bits. > > This is a long-term project as there are very many users of VMA flags > within the kernel that need to be updated in order to utilise this new > type. Thanks, I added this to mm.git's mm-new branch for some public exposure. I suppressed the usual email storm.