Received: by 2002:a05:6a10:8c0a:0:0:0:0 with SMTP id go10csp1178084pxb; Wed, 10 Feb 2021 01:56:35 -0800 (PST) X-Google-Smtp-Source: ABdhPJxwVBcLKRV6mjNH2lQ+ygAMexW/Bq8LxKiQXMfcqt273wNlRB0nr6NstVIT1Z+UHJVJEDkm X-Received: by 2002:a05:6402:364:: with SMTP id s4mr2391201edw.98.1612950995474; Wed, 10 Feb 2021 01:56:35 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1612950995; cv=none; d=google.com; s=arc-20160816; b=AKxLzvy8bZSudRcRFDGVH0h+l1shAz0lwhVu06oM65bikN94i0pww3Uae48hqTeTaa symZ8qr23JpFfl1glD51nkkCOprZOW0/ofgHtdL/sih7k44oA8rCA5KVmlGpaUeNPm+E f5sQuFfE+0AVnFP7Nql1nwplhcofCWDsbXnRYGErarUXZrj9wbRoHhR58bRf43dMNeCh oIqvdrF+Xdpy0WOa26FaIrJ3BOst+jDlYNrTpCE04KyTH+d1WsQEYXXpNLYxqLAYslDI 8TjvLoGd4F4uLdBq2HwyUuHmg8beHDf2OWR6OkHllM48Ez0ieRhBsQTTZzrkYfCbsPmc HVtA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=n09wwhZPZMXRQlfuuptpJPZK8mMhtnt/MOWmfwDWJnA=; b=gj5/DTUkdSo9ygv9SCULZIZ6b98f15NtG9vVRbIyXgb+5Ixrt0C22q1Q2oC3QEdt42 Inl8SzHuVAWV+w0aKBwHUqGAY/SaITZLpv1md4fgwITjT6mLUqKTTK2VPlJ7ALciX48A 8Qka/8gvuZFG/bsXzP1XL8T7SOzuV7hLZAFUFB8AWMk6tjr1LXVILMuSZLGiHJM8/cw8 L8tzbeOd708pFewGXJO4joHv5UtFS1LhGk9NcSyahKxK/djYzp1JUZGErNS6YPCJmdw5 A3jBbz+hcE0FcZSYoACntnW6gVWrZV003b0DJvoLkviRNIneNwIgwtmkh6QwwoP0nAMA c6rg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b=rrYVXN3x; spf=pass (google.com: domain of linux-nfs-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-nfs-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id ga42si952158ejc.8.2021.02.10.01.56.00; Wed, 10 Feb 2021 01:56:35 -0800 (PST) Received-SPF: pass (google.com: domain of linux-nfs-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b=rrYVXN3x; spf=pass (google.com: domain of linux-nfs-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-nfs-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230260AbhBJJyc (ORCPT + 99 others); Wed, 10 Feb 2021 04:54:32 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38370 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230103AbhBJJw0 (ORCPT ); Wed, 10 Feb 2021 04:52:26 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DFAD9C0613D6 for ; Wed, 10 Feb 2021 01:51:41 -0800 (PST) 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 Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org 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.