From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 93D1F377EAF for ; Mon, 27 Jul 2026 17:14:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785172456; cv=none; b=D9wGINGKTXscwtpvUI+JndSmMesa0Q9esAg2NuEfDsIM8/gDkWkUe0e8ldwCMd3FeOJtiDWENuGo7f3TS32kPi6Qrf4Q4wuY+4Q/rpv6SPAttKMokn9h9cjatp7nUdtm08qjWofOmjtt4tSKuH2Xz2fA8yRuFKWBmDhQNJfHCqw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785172456; c=relaxed/simple; bh=Il+aa4S4EGAbIo6Lhb7QlWB5TaWunuvdESe6LtyjSqY=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=UX1By5OFvaEiBKH8/Fa3ou/GGhMrTFPE1bHxnvP/JsCcEyLVg80a9IABi23Pm7Nt1Mpmy3NlrwtZOhNP2ZavFQmQ4WHKpOljRdXlVambm4ucqScqjbR3jl07K2uDqxSjKKx6DVctegvSK2xUheK5CxrRSVkTlRjWiiTYQOQ+d3U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=f7Bkg5ut; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="f7Bkg5ut" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 73F211F000E9; Mon, 27 Jul 2026 17:14:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785172455; bh=PXZYw8Gybe5LquYB2iCkcrbQKyfpfUQ9febyZUXV6Dk=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=f7Bkg5utQljnDHBFVOvkdXOv86n/OfFwbNA/Th0W8iRELhHjfM8tEVistbMpHpchL KPiZ0CKVo8BfPa1cvE0nwZNdA5fegYghyTotPvMnZnSp1mfN6OC53drv20rTlk8dnm DS+dV7bmrqwjwS1Tu7eRSNBYC8AUUNpdzyQv6e18y+f1frUrJGp4jQmAA+HFpzRaoU pXX0hDi9F+EA8VBh+v9N5jfgIAdT5DDwS0s8oVJt0VVbCZOxNDH8/7Te9q6CrTyrzt +YVazGJMT7lUpxxi2/MwBfMc04ETlSURVmSQE15j62QVx9RBQNM1QUn8tA+rnt/2aE IZSBNJUTefHAA== Message-ID: Date: Mon, 27 Jul 2026 19:14:05 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v6 08/14] s390: move has_transparent_hugepage() out of THP guard To: Luiz Capitulino , Alexander Gordeev Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, baolin.wang@linux.alibaba.com, ziy@nvidia.com, lance.yang@linux.dev, corbet@lwn.net, tsbogend@alpha.franken.de, maddy@linux.ibm.com, mpe@ellerman.id.au, gerald.schaefer@linux.ibm.com, hca@linux.ibm.com, gor@linux.ibm.com, x86@kernel.org, tglx@kernel.org, mingo@redhat.com, bp@alien8.de, ira.weiny@intel.com, hughd@google.com, dave.hansen@linux.intel.com, djbw@kernel.org, vishal.l.verma@intel.com, dave.jiang@intel.com, akpm@linux-foundation.org, yintirui@huawei.com, ljs@kernel.org, dev.jain@arm.com References: <3ab69c6a9210d2764f714a093eff731dcb55ed14.1784856856.git.luizcap@redhat.com> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 8bit On 7/27/26 19:06, Luiz Capitulino wrote: > On 2026-07-27 11:41, Alexander Gordeev wrote: >> On Thu, Jul 23, 2026 at 09:34:12PM -0400, Luiz Capitulino wrote: >>> has_transparent_hugepage() definition is guarded by >>> CONFIG_TRANSPARENT_HUGEPAGE, but there's a need to use it when >>                                     ^^^^^^^^^^^^^^ >> What need? The commit message needs to be self-sufficient or >> at least explain why that it is a pre-requisite. > > This series is adding a new API, based on has_transparent_hugepage(), to > check if a CPU supports PMD-sized pages. The new API is orthogonal to > THP and must work when CONFIG_TRANSPARENT_HUGEPAGE=n. Alexander is asking for that to be incorporated into the patch description :) -- Cheers, David