From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 5ADE755896 for ; Mon, 12 Aug 2024 08:27:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723451270; cv=none; b=DRxKABGLnm34cozwMzcuu7uLDqtlu9kQI7ff3CUmIYyDcV24uGPcqjRTbG7a3/aqXg4JArk68xOwvA0bn1yz3v1lve+0fXyWHyqsGpe/XDHW9IdmqOLdWzW1km1F+W1EKuRCvsDJv6YFhxUlpxG/dUihhId2BsXvHn6y6UkbNow= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723451270; c=relaxed/simple; bh=OHmoPU/0746t+lF6/nNeWLH+w52Eg/DD/mfoy3t7qRk=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=fKq8FdkKfh8iARKyixN/ZL5JF+8WxhtZpxVgMPxN04eJCm9ZH3PNuhhrpOg7Sh74LHfVi/OqTCD5cqgWj2+EmvxQuqCYmvpaBhxHal6rNgAwy45c/KzIDigsn+uhys/4cclfeDntiW6O+FA1U/i3+bQfWvIWp+C3vNMQYZSIVTQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=AweE10wh; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="AweE10wh" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=JQnSE5CoBf4ckjUProWLARWNQvxgl22xW+4ueUinWWk=; b=AweE10whFtcMVIu3u7iaGee+xJ djAMwYn/dL5ZO6fkeEgGZGXuHYvZC41AxxU++rnyP7G/RGzUzTvSD20AMwEjJWq6bNA8TBeHOlt8a 5ide0/doAEgjQ/UKK5Ox8Tvpl7juIwzq3TLPl8CAWXJNJWfQcOnBeINm47G3qqfOE+ZQ1GJvhz0Sk /3vlCY9/NVXehoMs+FZvnzPY2X+HfHlQp5LxbeUw5qh/zSjaComly/kaknzaCT35RgX2Aau3SRuGn pdexyg4NReqg7g/yfzl9EYXdsPSYen5HEMFazyvC+7ZW53mgEVIscZp9vK6JdQhuLmUNpqbuBk/Qd wpCbUGsg==; Received: from hch by bombadil.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1sdQOw-0000000HH1L-3M5s; Mon, 12 Aug 2024 08:27:38 +0000 Date: Mon, 12 Aug 2024 01:27:38 -0700 From: Christoph Hellwig To: Chris Li Cc: Christoph Hellwig , Barry Song <21cnbao@gmail.com>, Matthew Wilcox , akpm@linux-foundation.org, linux-mm@kvack.org, ying.huang@intel.com, baolin.wang@linux.alibaba.com, david@redhat.com, hannes@cmpxchg.org, hughd@google.com, kaleshsingh@google.com, kasong@tencent.com, linux-kernel@vger.kernel.org, mhocko@suse.com, minchan@kernel.org, nphamcs@gmail.com, ryan.roberts@arm.com, senozhatsky@chromium.org, shakeel.butt@linux.dev, shy828301@gmail.com, surenb@google.com, v-songbaohua@oppo.com, xiang@kernel.org, yosryahmed@google.com Subject: Re: [PATCH v5 4/4] mm: Introduce per-thpsize swapin control policy Message-ID: References: <20240726094618.401593-1-21cnbao@gmail.com> <20240726094618.401593-5-21cnbao@gmail.com> 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-Disposition: inline In-Reply-To: X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Thu, Aug 01, 2024 at 01:55:51PM -0700, Chris Li wrote: > Currently Android uses zram and it needs to be the Android team's > decision to move from zram to something else. I don't see that > happening any time soon. There are practical limitations. No one can tell anyone to stop using things. But we can stop adding new hacks for this, and especially user facing controls.