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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 31855F589D0 for ; Thu, 23 Apr 2026 13:14:18 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4g1c4S5SwCz2yGX; Thu, 23 Apr 2026 23:14:16 +1000 (AEST) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip="2600:3c0a:e001:78e:0:1991:8:25" ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1776950056; cv=none; b=EQeqFm5ivULUlAIA0fEWdoSooaUIKeITci1JKjo7NKebpLJO2B47xS84jHM9Yb8QFZkvPs/JIseA73gS5S4mya+kZ/uoDRKv7s8Mm3xLlBsXMCNlPmtjNmNCk8GGxuAJGjedMCT7mK6Yd0h9JOtrawVbjb/KbR5eg/dyS1NXbC1X+nZUZ61Wc8gWitYhEb/XfyYLsvmMWayqlrzEYqDyncfMEMctZr0c55z1TGHS0SQ6Zkc36XUznJ57+zM2uezDO27QugCqaCGsYVE9himwRlPtrOgSmdy+YaVucKQO+nK/2sBEb7U4PEPTnSEyaqOIgG8RivL/rlghLHds0vr+Aw== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1776950056; c=relaxed/relaxed; bh=E5zu17eWGJx0ZbQT3/4IhKgc7X0rd78xRrUuhl9JKjo=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=gbZZB47SDFICp+oTY/rM3xOb3xES5DZy9ALS/b1RvbLYSN7KW+nw/AW6l3wRC7tcr6rXt/iqQt6SylHXOLqV64i0oo0GRG0ZuGNhcLuXjZIQsvtGkjIekyoH60d7VicPtyJF+fAN37H6si4Qy6E8h66bQTYcGJVY5zAomlzJjzo0q03T1PTwq5mIiTPO38Lrdw1DPeSI6IaP8QilLC63OBJJEnGap3MKHOorS6uV7AnjCUGbmKGTV2TR9UoYfJmAeI4DVLD+L5CbDJEpiQczrUPnbZByogrgUKRygM9fcW6goDbE5y3RYkWyBuv2K93EbQjtmgSosYBQy02W3/wHDw== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org; dkim=pass (1024-bit key; unprotected) header.d=linux-foundation.org header.i=@linux-foundation.org header.a=rsa-sha256 header.s=korg header.b=S03Ap+5t; dkim-atps=neutral; spf=pass (client-ip=2600:3c0a:e001:78e:0:1991:8:25; helo=sea.source.kernel.org; envelope-from=akpm@linux-foundation.org; receiver=lists.ozlabs.org) smtp.mailfrom=linux-foundation.org Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=linux-foundation.org header.i=@linux-foundation.org header.a=rsa-sha256 header.s=korg header.b=S03Ap+5t; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=linux-foundation.org (client-ip=2600:3c0a:e001:78e:0:1991:8:25; helo=sea.source.kernel.org; envelope-from=akpm@linux-foundation.org; receiver=lists.ozlabs.org) Received: from sea.source.kernel.org (sea.source.kernel.org [IPv6:2600:3c0a:e001:78e:0:1991:8:25]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4g1c4M3h84z2yFQ for ; Thu, 23 Apr 2026 23:14:10 +1000 (AEST) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 6E4EB40395; Thu, 23 Apr 2026 13:14:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B3830C2BCAF; Thu, 23 Apr 2026 13:14:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1776950043; bh=vnWoAcvGkh3LMITKH32uZE+wtK1wshJpIlS68Lsz+nA=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=S03Ap+5tRCZsFG/zml8CtLTb9BLLVXvGEoZoAY1RDgMQdM7wvq1yuwkIVYkAy2l2r ZlbkQb1/rkCirun+/str7aimc8Ii31c13+V/2Wa9O/D1OMLHNQBv4iOL3M2YQKTfNG qLoS826+ne+kj4Lz5F+ChjQSVWBhYDlhrAyzBOJ8= Date: Thu, 23 Apr 2026 06:14:02 -0700 From: Andrew Morton To: Muchun Song Cc: "David Hildenbrand (Arm)" , Muchun Song , Oscar Salvador , Michael Ellerman , Madhavan Srinivasan , Lorenzo Stoakes , "Liam R . Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Nicholas Piggin , Christophe Leroy , aneesh.kumar@linux.ibm.com, joao.m.martins@oracle.com, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v5 v5 4/6] mm/sparse-vmemmap: Fix DAX vmemmap accounting with optimization Message-Id: <20260423061402.71f0f37285e922f28853e5f8@linux-foundation.org> In-Reply-To: References: <20260423071911.1962859-1-songmuchun@bytedance.com> <20260423071911.1962859-5-songmuchun@bytedance.com> <1cbae635-a115-4270-bae2-64145d16f936@kernel.org> <1ADE7CE5-F02D-42B2-B7AC-FE0D6E86042D@linux.dev> <20260423053237.a44b68034673bb35a1e042cd@linux-foundation.org> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Thu, 23 Apr 2026 20:43:02 +0800 Muchun Song wrote: > > > > Ideally, split the series up into one series for 7.1-rcX+stable, another > > series for 7.2.rc1. > > Given that these issues have existed for a long time and the trigger > frequency is very low, I suggest we take a more conservative timing. > > We can prioritize getting the series into 7.2-rc1 first. Once they have > 'baked' in the mainline for a while without issues, we can then proceed > with the backport to -stable (7.1.x). This avoids rushing risky changes > into stable branches. Good plan. thanks.