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 60267C433EF for ; Mon, 10 Jan 2022 08:32:51 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 0161D6B00A2; Mon, 10 Jan 2022 03:32:51 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id F08556B00A3; Mon, 10 Jan 2022 03:32:50 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E1F526B00A4; Mon, 10 Jan 2022 03:32:50 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0164.hostedemail.com [216.40.44.164]) by kanga.kvack.org (Postfix) with ESMTP id D8F1E6B00A2 for ; Mon, 10 Jan 2022 03:32:50 -0500 (EST) Received: from smtpin10.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id A4930944CD for ; Mon, 10 Jan 2022 08:32:50 +0000 (UTC) X-FDA: 79013711700.10.013E32A Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by imf21.hostedemail.com (Postfix) with ESMTP id 4DC111C0009 for ; Mon, 10 Jan 2022 08:32:50 +0000 (UTC) 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=itfUOLOlTc0EXXDuSrIyDvniWh8F+MeG3nQ/olPPtDM=; b=oIKww1jytYLF9zUufM7B0/j4FG 5SulQH0P8EIiA+15EmB06nfgy7Fkugp4gnRYhg49CHx4NQlM8aAb1HABeD4vHiPFNrK4ax4rMgJFC zMKmbvw0h4fOhbyMNnagyN205cvcxRTHLly/BwNsKYNhpyJrMh9pJNpJRneQ9Sr9vgf/ZSk2FTCHe 0RsNeMv6B1zBnciUWnJiygLyzq92XU+tpYKgthKx4BgPCbkNK2pke2g7dB5K7a+3+zWgg3z/6lFGo FaFFkuUl5qbIn1Rv1PYzW3s0lxSN7oRZzDXurVaIAZcUQaKi8SwFENfmuvIweXNtvw3ttVqDkuIpk b7cht5VA==; Received: from hch by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1n6q6j-009tVU-6q; Mon, 10 Jan 2022 08:32:49 +0000 Date: Mon, 10 Jan 2022 00:32:49 -0800 From: Christoph Hellwig To: "Matthew Wilcox (Oracle)" Cc: linux-mm@kvack.org, John Hubbard , Christoph Hellwig , William Kucharski , linux-kernel@vger.kernel.org, Jason Gunthorpe Subject: Re: [PATCH v2 12/28] mm: Add folio_put_refs() Message-ID: References: <20220110042406.499429-1-willy@infradead.org> <20220110042406.499429-13-willy@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220110042406.499429-13-willy@infradead.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 4DC111C0009 X-Stat-Signature: 7ostgkah3yabhs8e7wgn5rjg184p5qwc Authentication-Results: imf21.hostedemail.com; dkim=pass header.d=infradead.org header.s=bombadil.20210309 header.b=oIKww1jy; spf=none (imf21.hostedemail.com: domain of BATV+996bc53df2b455107366+6714+infradead.org+hch@bombadil.srs.infradead.org has no SPF policy when checking 198.137.202.133) smtp.mailfrom=BATV+996bc53df2b455107366+6714+infradead.org+hch@bombadil.srs.infradead.org; dmarc=none X-HE-Tag: 1641803570-33141 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, Jan 10, 2022 at 04:23:50AM +0000, Matthew Wilcox (Oracle) wrote: > This is like folio_put(), but puts N references at once instead of > just one. It's like put_page_refs(), but does one atomic operation > instead of two, and is available to more than just gup.c. > > Signed-off-by: Matthew Wilcox (Oracle) Looks good, Reviewed-by: Christoph Hellwig