From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793408073; b=Py01vrxNhyj8i8IxL7iatWbrc7D6ySftPLmJH5sl0Sg+1U1RIT/Fc8zbE7j8gYBYhyut ve6a2YA0v26bwF61sYFJ4Hbd406fSwuFODnK5KpLVAMIzcOikMEQT/5/1tntT/h/H4awx 1vMarost0pMrOT3zZANReDzD2RRDfMG5OLpGs5FeDMgC4qBIHsPhSJn+AEDL3qQfiyhrL Oo11jrPLDxafQEUt+znXOytvGuY66bimH3jQgfM4VtqTdwKX+qo1inATrHHlTD5F3hF8G q8E58pAfxt750DXqwfi9/3Nt70wbSyItQIoCQ3F+bQbQP9dkz0tczkD3QFcaLuay13w== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793408073; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=/VlP8AMtvHIrmpv4Ca8VfEp2DiVAi0o6sxJaGwd3BRg=; b=PX4pPZ3UTBc1+WB69ArY9LRy56uBHNwb0aR6AJ4NBqB+xNt1q9WjjnJ920C5Z5uF3hzC U7CbXXy9SPB1HhP1jdlss9I8Z1G3O//1JCPA9C39VzER61n3TUHYe4Ua+zxOnhKjnMtSV 6La6Gt3vaXsrerwMQAInT0aTTMCPUZ20CTUBPkObV1GhYSj5yDMgguNo6CSnYQCEEhlKR za9/jPyON2/jiSfN0iHfg2jJ7tVNv7ztDTL9uoMPCxYSbPAe9iQxuejcJWMpR9VotXmTY FGduhzGWW1eM5tzN1fVJ8QG/8uuXEIZ4AZxrg2Kf0e2hzBPs9gtWKYHbLzt56q+CsXw== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=WEnymSes; 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 8F0ED606A326 for ; Sat, 31 Oct 2026 00:54:33 +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=WEnymSes Received: by smtp.kernel.org (Postfix) with ESMTPSA id E8C451F00A02; Sat, 31 Oct 2026 00:54:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793408073; bh=/VlP8AMtvHIrmpv4Ca8VfEp2DiVAi0o6sxJaGwd3BRg=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=WEnymSes6FyoNh2GyCdDF4im6EHat9u9PImJ6m0Gm4pA4mEQFxMRnbiIpLNoUPPSN gWiO4OrRZ1wSAVB3iYGy+s0aWcN2n1y/IZUzwGry93yAKKQoViCrlcNhJmns8kB4wQ ondnCfJHAHVL4r+uek8KqfGeCly2OScTuwPcl4si4SXPNk+g6kJOMZlwmna9tN3nfA 0AR6n2fXM5WdCkbnqbIVi3VAxz/MHtZViPEMo9C3HHgjGD5rUcRYJo5qND8rRTfa64 3Vl7jNXeyE9SpmnEuKz9g1kqhZMjP/7X7KXEO2cODVFHeJh5O8CedcXdQAESyPZ1jy dtkhGsWCp83nw== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH 2/4] powerpc/mm: drop powerpc vmemmap_can_optimize() Reply-To: sashiko-reviews@lists.linux.dev To: "Muchun Song" Cc: linux-s390@vger.kernel.org, "Heiko Carstens" , "Vasily Gorbik" , "Alexander Gordeev" , "Christian Borntraeger" In-Reply-To: <20261030140720.1256062-3-songmuchun@bytedance.com> References: <20261030140720.1256062-1-songmuchun@bytedance.com> <20261030140720.1256062-3-songmuchun@bytedance.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Sat, 31 Oct 2026 00:54:32 +0000 X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > PowerPC no longer needs an architecture-specific vmemmap_can_optimize() > override for DAX vmemmap optimization. >=20 > Whether the optimized mapping can be used is now decided in the > architecture-specific vmemmap_populate() path. When PowerPC has to fall > back, such as on Hash MMU, it can simply clear the section compound order > there and disable the optimization for that section. >=20 > Drop the radix-specific vmemmap_can_optimize() override and rely on the > generic checks instead. >=20 > Signed-off-by: Muchun Song Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261030140720.1256= 062-1-songmuchun@bytedance.com?part=3D2