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smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=jJW0SXJL; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B687F606A31A; Tue, 27 Oct 2026 20:16:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=jJW0SXJL Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9AA341F01828; Tue, 27 Oct 2026 20:16:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793132189; bh=yv3WgMVRZis5mvccj4o/E0izobfrAv/a1j0nsDI8MA0=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=jJW0SXJLeraETSisKmLGPZ7i/niPRtOH+C6mSo0yvHCASRUUPPEIxjgRf6Amq8fm+ guD8eMawZUcIYN4L8ottvokjcLzQtRxTIc6G/IaYcQ28Enew/DR0Bnl3BsYV/QQE2J 0hdFqwJZNLy8RKx4IJqyGPpAU9wV/3120sksETknuNAP8zPqt4N860F/uqakh7J7BY rZ3SThlETe8nJioehN7u2DR+e6u0H+HcigoSFiL10pPiH6mkacMEP5q/dTdZzfuopT MmIzUUMf8ZnIOiPnpYj5WEcYVoDTKryLy7LcYVnKciV6QElSnOEpZ5Ft6bRTWLHX4N dKR41ADQjP4Gw== Message-ID: <9da1d287-c101-4af0-8371-888e78b3defe@kernel.org> Date: Tue, 27 Oct 2026 21:16:20 +0100 X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCHv7 13/18] mm: Drop fake head checks To: Kiryl Shutsemau , Muchun Song Cc: Peter Zijlstra , Andrew Morton , Matthew Wilcox , Usama Arif , Frank van der Linden , Oscar Salvador , Mike Rapoport , Vlastimil Babka , Lorenzo Stoakes , Zi Yan , Baoquan He , Michal Hocko , Johannes Weiner , Jonathan Corbet , Huacai Chen , WANG Xuerui , Palmer Dabbelt , Paul Walmsley , Albert Ou , Alexandre Ghiti , kernel-team@meta.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, loongarch@lists.linux.dev, linux-riscv@lists.infradead.org, Dave Hansen , Andy Lutomirski References: <20261027110028.GH2668564@noisy.programming.kicks-ass.net> <070DDE5C-2183-4A8B-AC2D-891CAE15E581@linux.dev> <4A32F5E6-977D-4720-8723-B19AFBC08FCF@linux.dev> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 10/27/26 18:51, Kiryl Shutsemau wrote: > On Tue, Oct 27, 2026 at 10:03:54PM +0800, Muchun Song wrote: >> Therefore, I am kind of leaning towards removing the RO protection >> and restoring RW permissions to solve the race. > > Okay, what about this: I'd be fine with that. Best to send it out officially such that we get more feedback from other folks. -- Cheers, David