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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id C747DC433F5 for ; Mon, 11 Apr 2022 03:17:57 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id E95A56B0072; Sun, 10 Apr 2022 23:17:56 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id E44BF6B0073; Sun, 10 Apr 2022 23:17:56 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id D65DD6B0074; Sun, 10 Apr 2022 23:17:56 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay.a.hostedemail.com [64.99.140.24]) by kanga.kvack.org (Postfix) with ESMTP id C7B276B0072 for ; Sun, 10 Apr 2022 23:17:56 -0400 (EDT) Received: from smtpin18.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id 85BCC23A80 for ; Mon, 11 Apr 2022 03:17:56 +0000 (UTC) X-FDA: 79343138952.18.F65B131 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf07.hostedemail.com (Postfix) with ESMTP id B7E5040003 for ; Mon, 11 Apr 2022 03:17:55 +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=zDQnIfuqccyfN2gbdNU5wS381S9cn2QMm9VzwK2eiK0=; b=XIJnU+2REbCnNo37VYNqYr4uMC QI+gOWbr9ORxTTOGHy6CyFQyNu7x4zgJACYTDu8xzxBdfR2vcQ9bHAf2L5o0EPTsl4iJOw/KdW3b+ 85Qv/iMHDmSTNCCuhIo0Qos0CgxpA1kdeNlkFzw1zlFspbJHC4grQ0jwRR1BWkBBygYVS7uSUFz8j tml0SXnu5HAoby5c9CgkiDnje58za7WD7pJz8dfwjKxfSuWwZrMtIeoHiscowyfvtLRD72tSlXV3m WNeeSWw8vz+6F5ssetqIxFzjAQaJftnaDks1997sZ6svd01T9sexygmqLw907Mm/TMynxc9jTxw7z hu94XzdA==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1ndkYe-00Byas-Co; Mon, 11 Apr 2022 03:17:40 +0000 Date: Mon, 11 Apr 2022 04:17:40 +0100 From: Matthew Wilcox To: Miaohe Lin Cc: akpm@linux-foundation.org, ying.huang@intel.com, songmuchun@bytedance.com, hch@infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 3/9] mm/vmscan: introduce helper function reclaim_page_list() Message-ID: References: <20220409093500.10329-1-linmiaohe@huawei.com> <20220409093500.10329-4-linmiaohe@huawei.com> <18ac3908-d162-f1ea-e91f-1da203272b74@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <18ac3908-d162-f1ea-e91f-1da203272b74@huawei.com> X-Rspamd-Server: rspam09 X-Rspam-User: X-Stat-Signature: 76fwfgu9w1fqd1zgfxr59ra959p4wbja Authentication-Results: imf07.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=XIJnU+2R; dmarc=none; spf=none (imf07.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org X-Rspamd-Queue-Id: B7E5040003 X-HE-Tag: 1649647075-72635 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000010, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, Apr 11, 2022 at 09:53:15AM +0800, Miaohe Lin wrote: > On 2022/4/9 21:44, Matthew Wilcox wrote: > > On Sat, Apr 09, 2022 at 05:34:54PM +0800, Miaohe Lin wrote: > >> + nr_reclaimed = shrink_page_list(page_list, pgdat, &sc, &dummy_stat, false); > >> + while (!list_empty(page_list)) { > >> + folio = lru_to_folio(page_list); > >> + list_del(&folio->lru); > >> + putback_lru_page(&folio->page); > > > > folio_putback_lru() > > I thought folio_putback_lru is deliberately not to use because there is no caller of folio_putback_lru now. > But it seems I was wrong. Will do it in next version. Looks like all of the uses of it that I mooted during the last merge window ended up going away. https://lore.kernel.org/all/20220204195852.1751729-47-willy@infradead.org/ was obsoleted by commit b109b87050df https://lore.kernel.org/all/20220204195852.1751729-48-willy@infradead.org/ and https://lore.kernel.org/all/20220204195852.1751729-50-willy@infradead.org/ were also obsoleted by Hugh's mlock changes I also sent https://lore.kernel.org/all/YjJJIrENYb1qFHzl@casper.infradead.org/ but never quite got it up to submittable quality.