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 D6508F4199C for ; Wed, 15 Apr 2026 12:22:40 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 0C53D6B0005; Wed, 15 Apr 2026 08:22:40 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 076136B0088; Wed, 15 Apr 2026 08:22:40 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id ECD976B0089; Wed, 15 Apr 2026 08:22:39 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id DD4F46B0005 for ; Wed, 15 Apr 2026 08:22:39 -0400 (EDT) Received: from smtpin02.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id 6C0FFC1BD7 for ; Wed, 15 Apr 2026 12:22:39 +0000 (UTC) X-FDA: 84660703638.02.815BA25 Received: from out-189.mta1.migadu.com (out-189.mta1.migadu.com [95.215.58.189]) by imf11.hostedemail.com (Postfix) with ESMTP id D5B934000B for ; Wed, 15 Apr 2026 12:22:35 +0000 (UTC) Authentication-Results: imf11.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=UeFP1PtS; dmarc=pass (policy=none) header.from=linux.dev; spf=pass (imf11.hostedemail.com: domain of muchun.song@linux.dev designates 95.215.58.189 as permitted sender) smtp.mailfrom=muchun.song@linux.dev ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1776255757; a=rsa-sha256; cv=none; b=GjIXZspTZy6Ken4TFPlgQHMHD8f0ROloSVFBdN/VgQNEp+Pt3k4kYs9MwpuriiXpTFmnHW 8ZHP3M/zL3tN8uCriXyQaE/7CTEdJyKBBaBy5LYWHat03XYWRGaJuqkLXxPU0dnh9bRh2k eprjgQkzxf01KN3K/uQd6B4r3OFxa80= ARC-Authentication-Results: i=1; imf11.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=UeFP1PtS; dmarc=pass (policy=none) header.from=linux.dev; spf=pass (imf11.hostedemail.com: domain of muchun.song@linux.dev designates 95.215.58.189 as permitted sender) smtp.mailfrom=muchun.song@linux.dev ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1776255757; 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:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=VCECXRZt1tRWhYO2f/EdS9u/dfLhHAlOtvQp6eMeCao=; b=XKb+FDJko6Yfql2rmOrmuvMia7s9IK2clt3/IID1fY7MO8TFX0+oFzLn7uTfmA6JIjhsJU D2sE2upFvrs1m9QrlAwT4pIyYwfAcImRibD55H0l1cXvr0jAfFYO4egkRffJ8atWt+PNv3 qhUKXkCjGMySpgnM3Vj/XSskbbs/t8w= Content-Type: text/plain; charset=us-ascii DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1776255753; h=from:from: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:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=VCECXRZt1tRWhYO2f/EdS9u/dfLhHAlOtvQp6eMeCao=; b=UeFP1PtSF6ipgLoxcNRkvHhJojxdRSDvpJboXiwDHiGFdWOJcrdUum8kCjr47GDwUTIjEL Oxib5nsSYCh6uASGbSDMCnR39l8VbiQwCV0shP4KLbjXNuik3D4XhtjFzThJ2YelY8PtYM Fxxwt17HNWkYfy7qwRomETUmFDVYQds= Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3864.500.181\)) Subject: Re: [PATCH v2 4/6] mm/sparse-vmemmap: Pass @pgmap argument to arch vmemmap_populate() X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Muchun Song In-Reply-To: <9ceede7b-45d3-4d15-b8ce-f0b04bbb18dd@oracle.com> Date: Wed, 15 Apr 2026 20:21:45 +0800 Cc: Muchun Song , Lorenzo Stoakes , "Liam R . Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Nicholas Piggin , Christophe Leroy , aneesh.kumar@linux.ibm.com, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, harry.yoo@oracle.com, Andrew Morton , David Hildenbrand , Oscar Salvador , Michael Ellerman , Madhavan Srinivasan Content-Transfer-Encoding: quoted-printable Message-Id: References: <20260415111412.1003526-1-songmuchun@bytedance.com> <20260415111412.1003526-5-songmuchun@bytedance.com> <9ceede7b-45d3-4d15-b8ce-f0b04bbb18dd@oracle.com> To: Joao Martins X-Migadu-Flow: FLOW_OUT X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: D5B934000B X-Stat-Signature: iq9eujfroou79zg9oarb1hh9qkp6b4r7 X-Rspam-User: X-HE-Tag: 1776255755-906380 X-HE-Meta: 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 0HXWi+XJ Nn99SeG1K2RjwvHglEefIggeeVgkKVn5TV3iuLQsfMHrifll6ISqyAFxzQokMzPpLjLMnGZUadP9YOdeGlPXG65mc/mncpkpOXE1RCKdobnJft7PTu5ZOaaLWyZCZQhvKm8oiiyh5mxgbUEQAmVxhSVvN+7bnRTRZ6nRXiYYrdWBkPsDlik0sIYx3HC01Bqu0GXJk6yBDi4GFCNLVNTtmoXsvVW8SC+GAPGpZgyfsaRxJYJrZHCQ7Do6KSIxJCC1LlBahylPZAFBFbv5DllXq7xs3JlP7B6wyzoxIuJLQy2D8ahvkuQP5TB7qCQzwBTn/HwDv5bj0sFCPc1g= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: > On Apr 15, 2026, at 20:13, Joao Martins = wrote: >=20 > On 15/04/2026 12:14, Muchun Song wrote: >> Add the struct dev_pagemap pointer as a parameter to the architecture >> specific vmemmap_populate(), vmemmap_populate_hugepages() and >> vmemmap_populate_basepages() functions. >>=20 >> Currently, the vmemmap optimization for DAX is handled mostly in an >> architecture-agnostic way via vmemmap_populate_compound_pages(). >> However, this approach skips crucial architecture-specific = initialization >> steps. For example, the x86 path must call sync_global_pgds() after >> populating the vmemmap, which is currently being bypassed. >>=20 >=20 > Harry's series fixed in a different way (for x86): >=20 > = https://lore.kernel.org/linux-mm/20250818020206.4517-1-harry.yoo@oracle.co= m/#t Thanks for your information. It indeed fixes the page table sync issue. I'll drop this one int the next version. Thanks, Muhcun=