From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755569AbZINQyj (ORCPT ); Mon, 14 Sep 2009 12:54:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755520AbZINQyh (ORCPT ); Mon, 14 Sep 2009 12:54:37 -0400 Received: from bombadil.infradead.org ([18.85.46.34]:46639 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755514AbZINQyg (ORCPT ); Mon, 14 Sep 2009 12:54:36 -0400 Date: Mon, 14 Sep 2009 12:54:35 -0400 From: Christoph Hellwig To: Alexey Korolev Cc: Mel Gorman , Eric Munson , Alexey Korolev , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: HugeTLB: Driver example Message-ID: <20090914165435.GA21554@infradead.org> References: <202cde0e0909132230y52b805a4i8792f2e287b01acb@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <202cde0e0909132230y52b805a4i8792f2e287b01acb@mail.gmail.com> User-Agent: Mutt/1.5.19 (2009-01-05) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Sep 14, 2009 at 05:30:12PM +1200, Alexey Korolev wrote: > There is an example of simple driver which provides huge pages mapping > for user level applications. The procedure for mapping of huge pages > to userspace by the driver is: > > 1. Create a hugetlb file on vfs mount of hugetlbfs (h_file) Note that to get your support code included at all you'll need a real intree driver, not just an example. That is if VM people are happy with the general concept.