From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 0077D15FD03 for ; Tue, 7 May 2024 17:22:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715102563; cv=none; b=uqE4AijLI48OVc+PCPPwTPVUc+Ict7KJoWrSEsogYM32uugvtKzoV+8DVIwOUpbjKFPZH5RT3X5WzP71H+OoLtDC0misu+mTcr3v/Oupe+IcChiM3XHoJrUswoRXQzfK5c7KKku6ZckZOxnAivtdo78yunzEYoMOk0YZKi3EHU4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715102563; c=relaxed/simple; bh=jsKpgfNXCcSTLHP8MOPapGa4X0VcGRUo2Nh6pYraQAY=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=SF3CLeyalrlSaAub1a9m3BUikeUdh7Hbr0CVcns4Y05Z2TfaWtaezFJsBFuxRgH5BVzCT3VtUPEsW15VjWzWSTyYXhPhKZnlWjRTHvYrWIlWHHmOjWr50yvEP56y4ZrMEuZPPwsGEG/CVooW7N/nu+LLXmQRWIe8xIxVIA72fR0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=rSDqox2E; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="rSDqox2E" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E03D9C2BBFC; Tue, 7 May 2024 17:22:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1715102562; bh=jsKpgfNXCcSTLHP8MOPapGa4X0VcGRUo2Nh6pYraQAY=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=rSDqox2EySg1GaW8XcSqE8TrDabLDqoXt8Uo3hd6f1x96PX4EapBLLbFYlze+TusE Cwz84nldp/4jolFfPC9/+u0+7fr2XoQvL7sQiE9UgSfBXxgSopk0YU0eohHDDdIXSp YzyWtNXnUSagh2Blmy+ZRUURWwIm452Dk/24yc2w= Date: Tue, 7 May 2024 10:22:41 -0700 From: Andrew Morton To: Lance Yang Cc: David Hildenbrand , Baolin Wang , willy@infradead.org, sj@kernel.org, maskray@google.com, ziy@nvidia.com, ryan.roberts@arm.com, 21cnbao@gmail.com, mhocko@suse.com, fengwei.yin@intel.com, zokeefe@google.com, shy828301@gmail.com, xiehuan09@gmail.com, libang.li@antgroup.com, wangkefeng.wang@huawei.com, songmuchun@bytedance.com, peterx@redhat.com, minchan@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v4 2/3] mm/rmap: integrate PMD-mapped folio splitting into pagewalk loop Message-Id: <20240507102241.0a09db69afd62efb5ce84f17@linux-foundation.org> In-Reply-To: References: <20240501042700.83974-1-ioworker0@gmail.com> <20240501042700.83974-3-ioworker0@gmail.com> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Tue, 7 May 2024 16:38:07 +0800 Lance Yang wrote: > > > Yep, I'll also set pvmw.ptl to NULL here if any corner cases arise. > > > > > > > This series already resides in mm-stable. I asked Andrew to remove it > > for now. If that doesn't work, we'll need fixup patches to address any > > review feedback. > > I'll patiently wait Andrew's response, and then submit the next version or > fixup patches accordingly. Well, which series are we talking about? "mm/madvise: enhance lazyfreeing with mTHP in madvise_free v10" or ""Reclaim lazyfree THP without splitting v4" or both? And how significant are the needed fixup patches? And what is our confidence level after those fixups are in place?