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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> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 85482160002 X-Stat-Signature: 9zjrejthrmoc9yjjj5nkt9eeifjzg6oo X-Rspam-User: X-HE-Tag: 1753840800-132287 X-HE-Meta: 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 4ZQh1bYa NE02wS1EkR3p7ENUiNDfPjGPRRHlHGvug9xkKkuvFCiT2qLcut8Mcwegioo31WPXy97hQV3h7ooz1n+QElI1V0LZetn+btKYbqQU7y5iDOx3oWXuLdsAKZCeiNYSwzl/7RH+IrSGrpJpdcviz/R5RY7eoen4LAhg61kDvdv036nQ1TBzvaDgDXzlmuxEx0NxVOD0u5di5+V6xU0y5K8usB8Jo9msu0hmHAuzulszFZVeiHhxXtrNgp5upGBH7iI30o7LgOnrIUTYg593IzrxvhL/T1vzoUSYgeGVn2A8ucsaMWv8bLK/e3H4v/rAfaZpWfbos/RVWNklRHZE3TOWFwY3bMWMHRX0kCYJdXwmQIroGVFHw9R0rSqRCXuXUffF5+dw1 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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