From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 412DB3D88F5; Fri, 3 Jul 2026 13:39:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783085948; cv=none; b=Gup4x+MEtjTXNf6dKt9hWR1JoMzrti3TmB9WRGV5W2D+EQYI+rMZXJf1z3cTOfs/mjRubmChb02viKc2lAXYyGr5lc2dZ4TmU1Wz2s+TKIwM+pBWqHsiBlm6ZR//Ch6a81vAefSlV3HjY5+tLn5tQY/Qa+v+r7IH5syZUVYfcOc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783085948; c=relaxed/simple; bh=jdkHQ8OiwFstJ9BIoCs53RYJrmMvVk+gNJy1X7Ike7k=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=HN0u/RqyfQhdkUi9NH9INcZgA5LbNie0RhUYXhezEAokokmLkyrivPu6adDZ2nnD2C/i+4U6Jcb5vMeqgwqVU+fpEixzd0xkzZvUqe/APEkslcJbL1E+gre8RWk1/K39Rx7vIMzkxK04ctKoyH+V0smQkUDjsZ5QiJZxZJu/drU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Ho+IIuyK; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Ho+IIuyK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D010C1F00A3A; Fri, 3 Jul 2026 13:39:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1783085946; bh=jdkHQ8OiwFstJ9BIoCs53RYJrmMvVk+gNJy1X7Ike7k=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=Ho+IIuyKp++PHAd93qe2Qh5adf3DEktrUTRnMNB1chctnEdXqn558DpvM+sk4AJy1 mA8sxwiU2YMsoEEkzeuUsZyc4e0f0qn0tiKfk/4C1ZY0rwioNrLx7kBKg/VVYy++FY OHLyXTgyNPCqT4dRlKKFFi8MCosU1HawJ3m53WOYx5l+whGo/KLbhibYXTogL7aAuK 7EzGGoqGmCz9pYTvP47Z9PInEHNIqry/43q/5S8SZRE7WD9WwiM6mhAZdd1RwRBRSJ ecaba0edW3Zk+iO2uVPkLe8y5sQQinVinWu//hSYfccADVOzyBLxv1zHSduOX2wy0/ nMT0AvNlver0A== Date: Fri, 3 Jul 2026 14:38:56 +0100 From: Lorenzo Stoakes To: Mike Rapoport Cc: "David Hildenbrand (Arm)" , Andrew Morton , Linus Torvalds , Alexander Viro , Christian Brauner , Jan Kara , Oleg Nesterov , Peter Xu , vova tokarev , linux-kernel@vger.kernel.org, linux-mm@kvack.org, stable@vger.kernel.org Subject: Re: [PATCH] userfaultfd: prevent registration of special VMAs Message-ID: References: <5a993689-f730-406d-8515-8bb6025cc851@kernel.org> <41ef0dce-e973-4947-b5e3-150fdb07f1a6@kernel.org> <11bae87d-73e6-4946-a41f-c5542fb40b75@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Fri, Jul 03, 2026 at 04:20:37PM +0300, Mike Rapoport wrote: > On Fri, Jul 03, 2026 at 11:11:14AM +0100, Lorenzo Stoakes wrote: > > On Thu, Jun 18, 2026 at 11:37:10AM +0200, David Hildenbrand (Arm) wrote: > > > > In a way that's an extra check for hugetlb, but it will work. > > > > > > My point would be that we exclude all special VMAs, except hugetlb (which is > > > special but supported ... in its special way). > > > > Mike - you said you were respinning, it'd help my series if you respan the above > > quickly so I could base my change on that :). > > I sent it already: > > https://lore.kernel.org/all/20260618095017.2553004-1-rppt@kernel.org > > and Andrew apparently ook it: > > https://lore.kernel.org/all/20260618183442.BBCD71F000E9@smtp.kernel.org It's not anywhere :) Andrew - did you take that thread as signal this should not go in? It should definitely go in. I will clean up the mess discussed there separately. > > > I can send a quick patch if you're tied up also! > > > > Thanks, Lorenzo > > -- > Sincerely yours, > Mike. Thanks, Lorenzo