From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 015D9C79FA1 for ; Mon, 7 Sep 2026 16:30:25 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id DC6656B009B; Mon, 7 Sep 2026 12:30:24 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id DA36F6B009D; Mon, 7 Sep 2026 12:30:24 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id CB2B16B009E; Mon, 7 Sep 2026 12:30:24 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id A34156B009B for ; Mon, 7 Sep 2026 12:30:24 -0400 (EDT) Received: from smtpin25.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay07.hostedemail.com (Postfix) with ESMTP id 3B30B1601D8 for ; Mon, 7 Sep 2026 16:30:24 +0000 (UTC) X-FDA: 85187503968.25.EED35C0 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf21.hostedemail.com (Postfix) with ESMTP id 803881C000B for ; Mon, 7 Sep 2026 16:30:22 +0000 (UTC) Authentication-Results: imf21.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b="KI62XHM/"; spf=pass (imf21.hostedemail.com: domain of ljs@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=ljs@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1788798622; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=TYQA4jeD0DIJnAW0P78qjwDpNlErq0X6ckTCGSBrwCE=; b=TTe56tslcN51I78ZDZyJWcgFEN5rMKOzwheJbBsTAG+U7xy1k/CDWTLcrviinc3A4igMhq iU6kT2kBrAiKPJsD372CT/zyxZFsNQsmIMjU+3Q6mR2Y7sQ0NgjplFPUhlcVwh3JTH+daG E5iwf1Y6la3nzTXbCu9ovjG2IsSMpDQ= ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1788798622; b=WOgwyB/fX/Z2tP0u9E4BlS98AlYXobn+9Z35Ha0tUcDjdjof0m9JutIxCsmZ+7y99uiGca btMu+NdwFHIRe/ZQAFYyP4cyxq7U+AEhmHF7ELET1JPxsrLqkT1nKRcwjEmT1I68mOHwLN hh3NEJJsfJBW4u77l9ZduIsxTT1CCcg= ARC-Authentication-Results: i=1; imf21.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b="KI62XHM/"; spf=pass (imf21.hostedemail.com: domain of ljs@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=ljs@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id E0E26601DB; Mon, 7 Sep 2026 16:30:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6AF721F00A3A; Mon, 7 Sep 2026 16:30:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788798621; bh=TYQA4jeD0DIJnAW0P78qjwDpNlErq0X6ckTCGSBrwCE=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=KI62XHM/GgSlqq9owo7p9GRljeRJwENVHuSPu6fS8Kl04az1Sb242UsyNOKb+j4yN ZZi0zcm8jQiNsGTjz2F6fRaAzU+TKsNUNm+PzC62GE/aHpaq6UwPqGqxc2Y6lfWGzw 8fOAhd9L3XYcD7ps5jP2GxzgfafQb5GNI1pLYcEFGNwa4yOuT4q41/5/NIV6bAf9Fa dzsMQwOxbasMZ1trntTM+bbjwTqRFjeDxTzw85ts4FwCqtPSEh7RY7ypcCboomKVmw Bm/hdu1W2T2NmbCIMF7QHMQsh208+sNp16Rr0HXynJ2r1S/ce+oZdiAjjQnk4wFxz/ hviFuc2R5p80w== Date: Mon, 7 Sep 2026 17:30:14 +0100 From: "Lorenzo Stoakes (ARM)" To: "David Hildenbrand (Arm)" Cc: Zi Yan , Andrew Morton , Baolin Wang , "Liam R. Howlett" , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Usama Arif , Peter Xu , Jason Gunthorpe , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Cedric Le Goater , Saravanan D , stable@vger.kernel.org Subject: Re: [PATCH] mm/huge_memory: bypass THP tuneables for huge pfnmap mappings Message-ID: References: <20260827-hugepfn-allowable-orders-v1-1-94819c8807c8@kernel.org> <4743f22a-c24f-4f93-80f5-3260f29bd410@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4743f22a-c24f-4f93-80f5-3260f29bd410@kernel.org> X-Rspam-User: X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 803881C000B X-Stat-Signature: urfars5ndi61wo736wcdfmtguki9f8cg X-HE-Tag: 1788798622-561878 X-HE-Meta: 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 bp0PXfSh wlJ6D7SxMx1o2aYVRU/yUYbGbZcaeIi2BXDMQkSSTAQCTaANifQ5oGeJ9QvxMFdGpINgOFgyg+brvxEngM4UOU9KcJqseYJhpai+X71HmXugsBXMPtXTaPIZNWQu5peLKs1thhHIGih7nq+si4K6RhfZwZn56VNbShEoHUA+S72sgDBNeoawxPiY+FGmQgBkcGj6ROwZ8a3Q3YA+RrtCTfKxIB0a14HMmh52Fcsw/8stsV0yIpv9d4CujrzbBVOei1+Ykm+v5+1zp7/9G/kesR8pqKSbWb+XAWBjYd3d9xq6bmuw= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, Sep 07, 2026 at 06:19:30PM +0200, David Hildenbrand (Arm) wrote: > On 9/7/26 18:15, Lorenzo Stoakes (ARM) wrote: > > On Mon, Sep 07, 2026 at 06:08:31PM +0200, David Hildenbrand (Arm) wrote: > >> > >>> > >>> That's a good idea! Much better thanks. > >>> > >>> > >>> Yeah, it's an annoying one as kinda want to say 'file-backed VMA' but I think > >>> you're right vma_xxx_file() -> vma_file_xxx() is better. > >>> > >>> Andrew - could you fix that up in place? > >>> > >>> Obviously if there's further feedback I can respin as well. > >> > >> Just as a general note I really hate these in-place updates. > >> > >> For a reviewer perspective (like me stumbling over this) this is just a mess. > >> > >> Resending with b4 is as easy as it gets. > > > > Ack, you are right to be honest, and I do empathise obviously. > > > > I will respin these in future! > > > > Let me know if you want me to respin this to make life a bit easier? > > Sorry for being grumpy. With 1500 unread mails, playing Hensel and searching for > breadcrumbs in my inbox is hard :D Tsk, that's not grumpy, you're speaking to the king of grumpiness :P > > (I did see some reply from Zi to an mm-unstable patch, but not sure if that was > applied in the end -- or whether Andrew fixed up any of that) > > I just saw my reply to my other mail, maybe a v2 would be best :) Sure no problem will respin. I will probably respin the RCU page table series too to wrap Kiryl's changes into it just to make life easier there too! > > -- > Cheers, > > David -- Cheers, Lorenzo