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[209.85.208.174]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-2e95bf1b13esm2360371fa.130.2024.05.24.08.26.09 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 24 May 2024 08:26:10 -0700 (PDT) Received: by mail-lj1-f174.google.com with SMTP id 38308e7fff4ca-2e95a1eff78so12839811fa.0 for ; Fri, 24 May 2024 08:26:09 -0700 (PDT) X-Forwarded-Encrypted: i=1; AJvYcCUjh290BCiyMHnVZjsSOEQce4wO4NSOxU5u3WuhWg6HqG7lIVNFCMau1W3c8r7S+K4ldNqKJoR8HOtf9jVPI2atgAA= X-Received: by 2002:a17:907:bd1:b0:a5a:893a:a73a with SMTP id a640c23a62f3a-a62641c2e68mr221556166b.10.1716564019461; Fri, 24 May 2024 08:20:19 -0700 (PDT) MIME-Version: 1.0 References: <20240415163527.626541-1-jeffxu@chromium.org> <20240514104646.e6af4292f19b834777ec1e32@linux-foundation.org> <202405141251.8E9580E@keescook> <202405231628.BBBB9787F@keescook> <20240523165418.242555ffc2372e59f88cabbf@linux-foundation.org> In-Reply-To: <20240523165418.242555ffc2372e59f88cabbf@linux-foundation.org> From: Linus Torvalds Date: Fri, 24 May 2024 08:19:59 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v10 0/5] Introduce mseal To: Andrew Morton Cc: Kees Cook , jeffxu@chromium.org, jannh@google.com, sroettger@google.com, willy@infradead.org, gregkh@linuxfoundation.org, usama.anjum@collabora.com, corbet@lwn.net, Liam.Howlett@oracle.com, surenb@google.com, merimus@google.com, rdunlap@infradead.org, jeffxu@google.com, jorgelo@chromium.org, groeck@chromium.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org, pedro.falcato@gmail.com, dave.hansen@intel.com, linux-hardening@vger.kernel.org, deraadt@openbsd.org Content-Type: text/plain; charset="UTF-8" X-Rspam-User: X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 64D4C14000A X-Stat-Signature: 9ifc874iduy33qpbmfie9qq8pxgufuz6 X-HE-Tag: 1716564372-130914 X-HE-Meta: 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 BSbOp3UH 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 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 Thu, 23 May 2024 at 16:54, Andrew Morton wrote: > > The testing and implementation review seem OK. But from a higher-level > perspective Linus doesn't seem to be on board(?). Oh, I'm fine with mseal. I wasn't fine with the insane "m*() system calls should be atomic" discussion where Theo was just making shit up. I honestly don't think mseal() needs it either. Linus