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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BBBDDC433EF for ; Mon, 11 Oct 2021 08:11:02 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 7806D60E9C for ; Mon, 11 Oct 2021 08:11:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 7806D60E9C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id E32C36B006C; Mon, 11 Oct 2021 04:11:01 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id DE2FF900002; Mon, 11 Oct 2021 04:11:01 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id CD1ED6B0072; Mon, 11 Oct 2021 04:11:01 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0198.hostedemail.com [216.40.44.198]) by kanga.kvack.org (Postfix) with ESMTP id BFBE66B006C for ; Mon, 11 Oct 2021 04:11:01 -0400 (EDT) Received: from smtpin21.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 7A3DE2DD83 for ; Mon, 11 Oct 2021 08:11:01 +0000 (UTC) X-FDA: 78683435922.21.817CDFB Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf29.hostedemail.com (Postfix) with ESMTP id 14098901E0D2 for ; Mon, 11 Oct 2021 08:11:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; 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=BP6eUUSbwOPyI0isq5d0FBMejsSUlafct4Eau4uM694=; b=T5vi3b5cptNd4ihDGlBPfewoN7 h/4t06vMAohvryQxbg832POhVNwqZ/TGil5obb01pmk6XbWTEhiK2BVad03JhiIXWaE7FDKwgVsnl DTErtvgpUaX/hTJwlsdojEdygH3HEcwqGePGkySsiaM3SEuTK3n4VR5wqfi8qlIexndYXcjoRUW0P 3Cr97Wv3wI1etYtnIFjAy+AWxSAbNB0VNC+/cGvZBttY8LgpwVDNDCcv1Seq94brD8VN85Z+Ilvlv kfubtjyeHEE3Jpx9K/kzQCvNgGimYp0zayRcWY65W47ghvx40zQ9ymrbw3QqnY6rqrseynrXLciqB eXbvxLrA==; Received: from hch by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1mZqKT-005M08-MP; Mon, 11 Oct 2021 08:07:48 +0000 Date: Mon, 11 Oct 2021 09:06:37 +0100 From: Christoph Hellwig To: Rongwei Wang Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, akpm@linux-foundation.org, willy@infradead.org, viro@zeniv.linux.org.uk, song@kernel.org, william.kucharski@oracle.com, hughd@google.com, shy828301@gmail.com, linmiaohe@huawei.com, peterx@redhat.com Subject: Re: [PATCH 0/3] mm, thp: introduce a new sysfs interface to facilitate file THP for .text Message-ID: References: <20211009092658.59665-1-rongwei.wang@linux.alibaba.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20211009092658.59665-1-rongwei.wang@linux.alibaba.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 14098901E0D2 X-Stat-Signature: 9c9sesqiju7oj67ew9xebtgonfhkyft1 Authentication-Results: imf29.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=T5vi3b5c; spf=none (imf29.hostedemail.com: domain of BATV+3b289f3b2d301f81c898+6623+infradead.org+hch@casper.srs.infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=BATV+3b289f3b2d301f81c898+6623+infradead.org+hch@casper.srs.infradead.org; dmarc=none X-HE-Tag: 1633939860-760415 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000001, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Can we please just get proper pagecache THP (through folios) merged instead of piling hacks over hacks here? The whole readonly THP already was more than painful enough due to all the hacks involved.