Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261680AbUDPTEE (ORCPT ); Fri, 16 Apr 2004 15:04:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261631AbUDPTEE (ORCPT ); Fri, 16 Apr 2004 15:04:04 -0400 Received: from mtvcafw.sgi.com ([192.48.171.6]:25844 "EHLO omx3.sgi.com") by vger.kernel.org with ESMTP id S261610AbUDPTD7 (ORCPT ); Fri, 16 Apr 2004 15:03:59 -0400 Message-ID: <40802E69.7040506@sgi.com> Date: Fri, 16 Apr 2004 14:05:13 -0500 From: Ray Bryant User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "'David Gibson'" CC: "Chen, Kenneth W" , linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org, lse-tech@lists.sourceforge.net, "'Andy Whitcroft'" , "'Andrew Morton'" Subject: Re: hugetlb demand paging patch part [2/3] References: <20040416032725.GG12735@zax> <200404160413.i3G4DcF13729@unix-os.sc.intel.com> <20040416044917.GB26707@zax> In-Reply-To: <20040416044917.GB26707@zax> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1341 Lines: 35 David, Is there a big user demand for copy-on-write support for hugetlb pages? I can understand the rationale for making hugetlb pages behave more like user pages, and fixing the problem that hugetlb pages are shared across fork via MAP_SHARE semantics regardless of whether the user requests MAP_PRIVATE or not, but it just doesn't strike me as something that anyone who uses hugetlb pages would actually want. Of course, YRMV (your requirements may vary). :-) 'David Gibson' wrote: > > Well, I'm attempting to understand the hugepage code across all the > archs, so that I can try to implement copy-on-write with a minimum of > arch specific gunk. Simplifying and consolidating the existing code > across archs would be a helpful first step, if possible. > -- Best Regards, Ray ----------------------------------------------- Ray Bryant 512-453-9679 (work) 512-507-7807 (cell) raybry@sgi.com raybry@austin.rr.com The box said: "Requires Windows 98 or better", so I installed Linux. ----------------------------------------------- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/