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 X-Spam-Level: X-Spam-Status: No, score=-3.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6BB0AC433E0 for ; Wed, 10 Feb 2021 09:51:48 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 946F764E3B for ; Wed, 10 Feb 2021 09:51:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 946F764E3B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id E59A86B006C; Wed, 10 Feb 2021 04:51:46 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id DE1FD6B006E; Wed, 10 Feb 2021 04:51:46 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B98E16B0070; Wed, 10 Feb 2021 04:51:46 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0173.hostedemail.com [216.40.44.173]) by kanga.kvack.org (Postfix) with ESMTP id 980B06B006C for ; Wed, 10 Feb 2021 04:51:46 -0500 (EST) Received: from smtpin27.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 68EECBF03 for ; Wed, 10 Feb 2021 09:51:46 +0000 (UTC) X-FDA: 77801891412.27.hill11_3c096912760f Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin27.hostedemail.com (Postfix) with ESMTP id 503763D663 for ; Wed, 10 Feb 2021 09:51:46 +0000 (UTC) X-HE-Tag: hill11_3c096912760f X-Filterd-Recvd-Size: 2478 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf41.hostedemail.com (Postfix) with ESMTP for ; Wed, 10 Feb 2021 09:51:45 +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=n09wwhZPZMXRQlfuuptpJPZK8mMhtnt/MOWmfwDWJnA=; b=rrYVXN3xejO6bWjUBoXyyXkN7N wf6ebGNzeLGzfhuXhXBChpz46OM39D6ZS2FlZXhPgyqifVQnMvzBILKzk1hHFB7rAbi5uDKfWBfBJ wl94xJbv3yrJ3f10rcASvjcJlg1Keh7RjGGdedXzvjkW645ZvyRKGA5VDGMd5/TCWOzJFjQp+vY6x 5PF8GYXav/a2sSd/8Su2IrydijNRyX+ipDaPAfFH/yLQGbjoJleIMYvsg0AGb4sa8AfgEZL1mM36B P8t8j+JjtYwpWJi4DbI2QIVwyLKS6rt76auhQRmDt+bDKc3JwMJDT6a6pLib2uNlcRUCRXbOk+xTm cfO221lA==; Received: from hch by casper.infradead.org with local (Exim 4.94 #2 (Red Hat Linux)) id 1l9m9f-008fhd-Lz; Wed, 10 Feb 2021 09:51:30 +0000 Date: Wed, 10 Feb 2021 09:51:27 +0000 From: Christoph Hellwig To: Vlastimil Babka Cc: Jesper Dangaard Brouer , Chuck Lever , "mgorman@suse.de" , Linux NFS Mailing List , "linux-mm@kvack.org" , Mel Gorman Subject: Re: alloc_pages_bulk() Message-ID: <20210210095127.GA2066247@infradead.org> References: <2A0C36E7-8CB0-486F-A8DB-463CA28C5C5D@oracle.com> <20210209113108.1ca16cfa@carbon> <7e8efe19-94da-3f75-2380-2a54b36d5ab5@suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <7e8efe19-94da-3f75-2380-2a54b36d5ab5@suse.cz> X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html 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 Tue, Feb 09, 2021 at 06:27:11PM +0100, Vlastimil Babka wrote: > > > The fourth patch introduces a bulk page allocator with no > > in-kernel users as an example for Jesper and others who want to > > build a page allocator for DMA-coherent pages. It hopefully is > > relatively easy to modify this API and the one core function toget > the > semantics they require. > > So it seems there were no immediate users to finalize the API? __iommu_dma_alloc_pages would be a hot candidate.