From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f173.google.com (mail-pl1-f173.google.com [209.85.214.173]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E4B1472604 for ; Wed, 30 Jul 2025 01:59:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.173 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753840801; cv=none; b=rnMkNBvVW3bK1lbEtxj/RKHuh3Lac2ppObeCmBFJ6vaVDgSAVTZtwQ60AZGVfqh9sxEBbQ/XgmlMobHtbnsspeNmocevd/AO10rIgaF6QIfgltx6DVpEfSUCmvbXe9ZQjnaTQtxwGjtop/iB3khu+m1CvyEBE3n/wieEY/pGL0o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753840801; c=relaxed/simple; bh=HyB44ZZ6pk8w3wAojyfFHRz7MWKPiai1SP+6ZMkt1/Y=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=FGqx//t4h81pvrgc14b7cE9368EWuaQTFyln8dAwznuE3nnBD3MPC5AjR2/UPMk9N/Yneg/CuCT/aI8+Be61X8x9gCxsCLelBCzNVgIsk/xWcp7k06LO/6UbjVKKrWsgsbeZx23xX8mcvQaFAXNIRufkpOMYocdKqL3Axz91yoA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=3Zmm8Zsa; arc=none smtp.client-ip=209.85.214.173 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="3Zmm8Zsa" Received: by mail-pl1-f173.google.com with SMTP id d9443c01a7336-240718d5920so72705ad.1 for ; Tue, 29 Jul 2025 18:59:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1753840799; x=1754445599; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=QcSJTaElVVvYYo9nNi0EOGtYaOjMylV8RmeZ1BcyB1k=; b=3Zmm8ZsaFw+q7/hudtGqMVJ3EHGaNNjx1r3tqyYMDGtazw7PAWqJw8Cvs1e9lkl85Y XuPjaPckxwepCb3GKNsuh5yjJnIXo3v06ZZVzIEIlfYyljzjNqC7f2GCiHMvW/z1+XiL xxpgmFJE0oRpiKFPjL4bNhopGJapmNEEtTatJwIC3z8Mvb9zvCUrOIpJLVBpgo+iq/5c B5MKFOle8rYqWy5hFb+/P9m6XCA63+LG4dA0qNBm8ZWgE4X5dG3TiUC4RTfM5YNHL+qy vTnNEf2r/x0KgsNgKCM3uaU85PB6bLLLmtuZuS2tsaDmiBsW7/0sX/wndYpAh8qu7twT IsIQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1753840799; x=1754445599; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=QcSJTaElVVvYYo9nNi0EOGtYaOjMylV8RmeZ1BcyB1k=; b=QUzpqqek9bKkeS5i72ZPPfzGY8I9IXqHnknpOwSuuYzwAYfka5wyR5pjyHIb2QgDS3 16iOwzHl5g7CHNpFAnSZqoVEHB/7A7rjlNrRLyE4fT7V089n358a6M/vSOPMRPcOUZ8p BVujFSBu54Cb8Luumiu1jAn6rnpHAClwGRCxRCVU+8yyX946IB7FazwrEBeabNijeVso IjY64GEbPCcoUz9bTMXZk3MAdOfLfZZeiCB50MBSS2I7s9G2TlhUPcABsgqKqzF9/tnI BqkMA/7qCYoR5YLIUFYsM8dsR6ydP173wH8Tw/WW2NRVrGs/LPcTufSi27DAmAMy2Dha bBnA== X-Forwarded-Encrypted: i=1; AJvYcCUrdsSXzcMteZv5uhyWruwJvZHwU6K/5+aA9g++xSUBnokFUBewVxed+5ZLayw4yrJNsmJ3ECDUT2lMcGo=@vger.kernel.org X-Gm-Message-State: AOJu0YzKcQta3XRjlWVTi6WhDqVBKYlU4ubRQffOY4RnBkW/Ua6VLHco B/1z5k5cOTugHMavnVroL1WvBDh8zN6KpFrKGiwV/cFhW4fmtOSsa2DK9fitQTAk9A== X-Gm-Gg: ASbGnctxvisWzy1gH/cvfeINQl3+Vktoubw7twtLlPWwt8wzCgMjGXyNopBPmWXzFvw Dsvp41gmmXhyZa1BCV/PqMQ/6sDMVCfR4Vbi7Zz5PoKNMH73fVEXuvNsOkRJxWogO+EwLQECxnb TDLuQyO9/yEVacGjyQ20k6mn+5/6R3VN37p4GbaLnoUTP8DkX3J4MLSeyqL2GWR+KZ6B5UgoDYv 2tImWiZj0RgJnKjqd/QrUPUVQBsflzbjuLhep3UjO2wZBFrSHYbGOKtEjQf2goOLR8V90tblsel kk1pC+ZEqSLko7yF0GP2iJzYdv8KDhbzKx6lia8YXdxpT+iLhAWsal3lD7VXfJyAB6s0rE/w7YF BjPSRrsfS4ena1MmSzOt9XSTH2llS80SDIvit7EtJ5UKUaCghuImoYvt3MQf/ndM= X-Google-Smtp-Source: AGHT+IGjlp72ezcaslBe/4Wam1DWdKTtFPAg2RfpZpa/ZWAp7fRLm64jv1x6op5wLdcpNXOdDDpIQg== X-Received: by 2002:a17:902:cf42:b0:240:5c75:4d29 with SMTP id d9443c01a7336-24099e4ecc0mr2140635ad.0.1753840798874; Tue, 29 Jul 2025 18:59:58 -0700 (PDT) Received: from google.com ([2a00:79e0:2e51:8:9606:2f93:add0:9255]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-76408def71csm9185669b3a.56.2025.07.29.18.59.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Jul 2025 18:59:58 -0700 (PDT) Date: Tue, 29 Jul 2025 18:59:51 -0700 From: Isaac Manjarres To: Matthew Wilcox Cc: lorenzo.stoakes@oracle.com, gregkh@linuxfoundation.org, Muchun Song , Oscar Salvador , David Hildenbrand , Alexander Viro , Christian Brauner , Jan Kara , Andrew Morton , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Kees Cook , Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , Jann Horn , Pedro Falcato , Hugh Dickins , Baolin Wang , aliceryhl@google.com, stable@vger.kernel.org, kernel-team@android.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: Re: [PATCH 5.4.y 0/3] Backport series: "permit write-sealed memfd read-only shared mappings" Message-ID: References: <20250730005818.2793577-1-isaacmanjarres@google.com> 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 Wed, Jul 30, 2025 at 02:27:29AM +0100, Matthew Wilcox wrote: > On Tue, Jul 29, 2025 at 05:58:05PM -0700, Isaac J. Manjarres wrote: > > Lorenzo's series [2] fixed that issue and was merged in kernel version > > 6.7, but was not backported to older kernels. So, this issue is still > > present on kernels 5.4, 5.10, 5.15, 6.1, and 6.6. > > > > This series backports Lorenzo's series to the 5.4 kernel. > > That's not how this works. First you do 6.6, then 6.1, then 5.15 ... Hey Matthew, Thanks for pointing that out. I'm sorry about the confusion. I did prepare backports for the other kernel versions too, and the intent was to send them together. However, my machine only sent the 5.4 version of the patches and not the rest. I sent the patches for each kernel version and here are the relevant links: 6.6: https://lore.kernel.org/all/20250730015152.29758-1-isaacmanjarres@google.com/ 6.1: https://lore.kernel.org/all/20250730015247.30827-1-isaacmanjarres@google.com/ 5.15: https://lore.kernel.org/all/20250730015337.31730-1-isaacmanjarres@google.com/ 5.10: https://lore.kernel.org/all/20250730015406.32569-1-isaacmanjarres@google.com/ > Otherwise somebody might upgrade from 5.4 to 6.1 and see a regression. Understood; sorry again for the confusion. Thanks, Isaac