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Wed, 06 Aug 2025 09:54:38 -0700 (PDT) Date: Wed, 6 Aug 2025 09:54:32 -0700 From: Isaac Manjarres To: Greg KH Cc: Lorenzo Stoakes , aliceryhl@google.com, surenb@google.com, stable@vger.kernel.org, kernel-team@android.com Subject: Re: [PATCH 5.10.y 0/4] Backport series: "permit write-sealed memfd read-only shared mappings" Message-ID: References: <20250730015406.32569-1-isaacmanjarres@google.com> <538efa9f-d3e5-41ab-ac82-5b7b799df706@lucifer.local> <2025073103-unheated-outbid-11a2@gregkh> Precedence: bulk X-Mailing-List: stable@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: <2025073103-unheated-outbid-11a2@gregkh> On Thu, Jul 31, 2025 at 06:58:41AM +0200, Greg KH wrote: > On Thu, Jul 31, 2025 at 05:40:29AM +0100, Lorenzo Stoakes wrote: > > On Wed, Jul 30, 2025 at 03:26:01PM -0700, Isaac Manjarres wrote: > > > On Wed, Jul 30, 2025 at 08:34:02PM +0100, Lorenzo Stoakes wrote: > > > > > > > > > > > > Having said that, I'm not against you doing this, just wondering about > > > > > > that. > > > > > > > > > > > > Also - what kind of testing have you do on these series? > > > > > I did the following tests: > > > > > > > > > > 1. I have a unit test that tries to map write-sealed memfds as > > > > > read-only and shared. I verified that this works for each kernel version > > > > > that this series is being applied to. > > > > > > > > > > 2. Android devices do use memfds as well, so I did try these patches out > > > > > on a device running each kernel version, and tried boot testing, using > > > > > several apps/games. I was looking for functional failures in these > > > > > scenarios but didn't encounter any. > > > > > > > > > > Do you have any other recommendations of what I should test? > > > > > > > > No, that sounds good to me! Thank you for taking the time to implement and > > > > carefully check this :) > > > > > > > > In this case I have no objections to these backports! > > > > > > > > Cheers, Lorenzo > > > > > > Thanks Lorenzo! Just to confirm, is there anything required from my > > > end for these patches or they'll get reviewed and merged over time? > > > > No, these should all be good to go, Greg + Sasha handle the stable kernels > > and should percolate through their process (I see Sasha's scripts have been > > firing off already :) > > Yeah, give us a week or so to catch up with all of the recently > submitted changes, the merge window, AND finally, a vacation for the > stable maintainers.... > Understood. Thank you all for this! --Isaac