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Howlett" , Vlastimil Babka , Suren Baghdasaryan , Michal Hocko , Shuah Khan , linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] mm/secretmem: prevent uncharged mremap expansion after fork Date: Tue, 18 Aug 2026 12:42:12 +0900 Message-ID: <20260818034212.1761451-1-4ncienth@gmail.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260817154356.552ccde5d279f6e0a9ef0ff2@linux-foundation.org> References: <20260813225328.2010303-1-4ncienth@gmail.com> <20260817154356.552ccde5d279f6e0a9ef0ff2@linux-foundation.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Thanks for the review. Yes, this patch was developed with AI assistance. I should have included the required Assisted-by trailer, and I apologize for the omission. The related issue is pertinent. Lorenzo's follow-up shows that the underlying problem is broader than the fork/mremap path: secretmem accounting follows the VMA lifetime, while the folios remain unevictable until inode eviction. My VM_DONTEXPAND approach only blocks one path and is not an appropriate fix. Please drop this patch. I will test Lorenzo's follow-up patch and report the results on that thread. Thanks, Daehyeon