From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from nwd2mail10.analog.com ([137.71.25.55]:46703 "EHLO nwd2mail10.analog.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751228AbXINFtG (ORCPT ); Fri, 14 Sep 2007 01:49:06 -0400 Subject: Re: [Uclinux-dist-devel] Re: [PATCH] Blackfin arch: add some missing syscall From: Bryan Wu Reply-To: bryan.wu@analog.com In-Reply-To: <46E918FD.3070607@t-online.de> References: <1189670203.30686.15.camel@roc-desktop> <20070913081852.GC17367@parisc-linux.org> <8bd0f97a0709130137l55977c28w95cf8527ae8b9e24@mail.gmail.com> <1189673849.30686.28.camel@roc-desktop> <46E918FD.3070607@t-online.de> Content-Type: text/plain Content-Transfer-Encoding: 7bit Date: Fri, 14 Sep 2007 13:45:18 +0800 Message-Id: <1189748718.5133.23.camel@roc-desktop> Mime-Version: 1.0 Sender: linux-arch-owner@vger.kernel.org To: Bernd Schmidt Cc: bryan.wu@analog.com, Mike Frysinger , bernd.schmidt@analog.com, linux-arch@vger.kernel.org, Matthew Wilcox , Linux Kernel , Paul Mundt , uclinux-dist-devel@blackfin.uclinux.org, Andrew Morton List-ID: On Thu, 2007-09-13 at 13:03 +0200, Bernd Schmidt wrote: > Bryan Wu wrote: > >>> but mremap doesn't -- there's even an implementation in mm/nommu.c. > >>> Could you check the rest of these over to see if they truly don't need > >>> to be implemented for no-mmu? > >> you're right we want mremap, my fault > >> > > > > Yes, I do think so, both sys_mremap and sys_munmap are implemented in > > mm/nommu.c. How do think of this, Bernd? > > There's a mremap in nommu.c, but it doesn't do a lot that is useful. > With some further mm changes in our tree, it's little more than a fancy > way of saying munmap, and uClibc does not use it, so there's no > compelling need to have it in userspace. > Make sense. So currently Blackfin uClinux use the mremap/munmap in uClibc? Thanks -Bryan