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 E7C102E229F for ; Sat, 19 Sep 2026 21:22:11 +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=1789852932; cv=none; b=dYmbw4GTm0D32OFgFmxGhNPWVeUk5N2ekO2a1uMR9PYyd6uX2vicxtbzKbcLWfw5K0IS9/3nnVSHh6/KHTcwFuJ/o3RiXt7dlPLXaLlQAn24tOghflDvh4POXbm8bDJ+HUEqbZNugBY5atcw4IJLt2Uq4i1gowH8/F2DJSswLZ8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789852932; c=relaxed/simple; bh=9KE5aURhmFeQqffPNpopHGYL3hq2scKvdY2jkmvGLyo=; h=MIME-Version:References:In-Reply-To:From:Date:Message-ID:Subject: To:Cc:Content-Type; b=EfnCFN9oRneP8lqYbtpUUWR+tOfDHSR1LmGl3AzMfhbUeX9sGoukTW+YYZ0lilnyQ0Iv9na7YwU02C3PomN2bESDacgetJh9wDVUMvjgPf6+r3FpZms2/LODuwEtetS8Njx1Nm/OQLskVq78syxgku4vn5mBW1kPL0Hx5pX0GNQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dvxvYiL3; 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="dvxvYiL3" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C6E101F00899 for ; Sat, 19 Sep 2026 21:22:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789852931; bh=9KE5aURhmFeQqffPNpopHGYL3hq2scKvdY2jkmvGLyo=; h=References:In-Reply-To:From:Date:Subject:To:Cc; b=dvxvYiL3h4r8ovEqY5Mh4f6NhdN7+bguAVTX4+urpf3GoZamkP+ErBEtKFU4bHQmN H68Wtp6494+yz30jy/m5d/RagA2pKfWwJkhqA7emGBXMdCN2ZrErMQhbcwngaZpAE5 Q8vwzHr8pmXA7IIVBZXC/U05n4OxzxVbxq/4AEBYKJcGv21tMp4NC7VWPsAkM2DZQ4 nRU+TKvcRokByfRcQddCmKVnGVAxA2MPHZnugbTe2PQjpV/u1CNfDmFUJfe8stKdW+ Dewl9VykVXDI6pXLrW5sA7fWZVAW7SMzPc22GVHslUWFFbF0bCks4NqF+9nAStVy18 qmCnUcgEbkYhw== Received: by mail-yx2-f42.google.com with SMTP id 00721157ae682-89666eea29cso12580517b3.2 for ; Sat, 19 Sep 2026 14:22:11 -0700 (PDT) X-Forwarded-Encrypted: i=1; AKwUvBz5MurZFdqH1Tadtltg9kBm2n/XjokNHQIPaIFFg51zOlKqwP0gNwKuVCE/yPfDkwE9QdX5Jp/UmrkX71Q=@vger.kernel.org X-Gm-Message-State: AFuF++mk+kV33vU9jHtFNmOxM6Dc6FhzW2bJiZY6lPdQhBupMJnofiQa dww1gjfVuk7lqgrjgcwY1bP5MaxgDuUOMlEJYL9QhcVKjEJjaHUhV7SjkyivfKQ9jclqYqGwTPi W9z9fBwQySiRtVCjBnZOUcBbInvZITsJuoDadgHER+Q== X-Received: by 2002:a05:690e:4888:10b0:66f:c1bc:87ef with SMTP id 956f58d0204a3-6717fde9f96mr1259997d50.72.1789852930667; Sat, 19 Sep 2026 14:22:10 -0700 (PDT) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <7ee199ddee81bf8026688def82f78ad9db09be9e.camel@surriel.com> In-Reply-To: <7ee199ddee81bf8026688def82f78ad9db09be9e.camel@surriel.com> From: Chris Li Date: Sat, 19 Sep 2026 11:21:59 -1000 X-Gmail-Original-Message-ID: X-Gm-Features: AcwNN1V3fN8BiarqwCTVlFEX0OtGz4WToCWoAzNrsMF1T-3gjKneuvYzb3JnUKQ Message-ID: Subject: Re: Path forward for Virtualized Swap? To: Rik van Riel Cc: Baoquan He , Shakeel Butt , Nhat Pham , Kairui Song , Johannes Weiner , Michal Hocko , Roman Gushchin , Yosry Ahmed , David Hildenbrand , Muchun Song , Kemeng Shi , Barry Song , YoungJun Park , Chengming Zhou , "Lorenzo Stoakes (Oracle)" , "Liam R. Howlett" , "Vlastimil Babka (SUSE)" , Mike Rapoport , =?UTF-8?Q?Suren_Baghdasaryan=EF=BF=BC?= , Qi Zheng , Axel Rasmussen , Yuanchu Xie , Wei Xu , Gregory Price , Wenchao Hao , Jonathan Corbet , Hugh Dickins , Baolin Wang , Tejun Heo , =?UTF-8?Q?Michal_Koutn=C3=BD?= , Shuah Khan , Kunwu Chan , Meta kernel team , Linux Memory Management List , Linux Kernel Mailing List , linux-doc@vger.kernel.org, "open list:CONTROL GROUP - MEMORY RESOURCE CONTROLLER (MEMCG)" , Andrew Morton , Kairui Song , Joshua Hahn Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Sat, Sep 19, 2026 at 6:16=E2=80=AFAM Rik van Riel wro= te: > > On Sat, 2026-09-19 at 01:55 -0500, Chris Li wrote: > > > > We don't have to address all issues in one series. I actually advise > > against lump too many patches into one series. > > > There are two things here. > > I totally agree that we can merge things piecemeal, > and not aim for perfection at the start. Agree. > However, I believe we do need to take care that > whatever design we go with is actually able to > support the end user functionality we want. Agree. I want to add that we should support new functionality without sacrificing existing user functionality. > We have to make sure that the path we pick does > allow us to very easily add the user visible > functionality that people need. Agree. > We can always swap out technical details behind > the scenes later, but user interfaces are supposed > to be stable. I think we agree on all aspects. Chris