Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751345AbaKYSY6 (ORCPT ); Tue, 25 Nov 2014 13:24:58 -0500 Received: from shards.monkeyblade.net ([149.20.54.216]:36522 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751301AbaKYSY4 (ORCPT ); Tue, 25 Nov 2014 13:24:56 -0500 Date: Tue, 25 Nov 2014 13:24:45 -0500 (EST) Message-Id: <20141125.132445.152609149279137368.davem@davemloft.net> To: paulmck@linux.vnet.ibm.com Cc: rdunlap@infradead.org, pieter@boesman.nl, josh@joshtriplett.org, alexander.h.duyck@intel.com, viro@zeniv.linux.org.uk, ast@plumgrid.com, akpm@linux-foundation.org, beber@meleeweb.net, catalina.mocanu@gmail.com, dborkman@redhat.com, edumazet@google.com, ebiederm@xmission.com, fabf@skynet.be, fuse-devel@lists.sourceforge.net, geert@linux-m68k.org, hughd@google.com, iulia.manda21@gmail.com, JBeulich@suse.com, bfields@fieldses.org, jlayton@poochiereds.net, linux-api@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nfs@vger.kernel.org, mcgrof@suse.com, mattst88@gmail.com, mgorman@suse.de, mst@redhat.com, miklos@szeredi.hu, netdev@vger.kernel.org, oleg@redhat.com, Paul.Durrant@citrix.com, pefoley2@pefoley.com, tgraf@suug.ch, therbert@google.com, trond.myklebust@primarydata.com, willemb@google.com, xiaoguangrong@linux.vnet.ibm.com, zhenglong.cai@cs2c.com.cn Subject: Re: [PATCH v4 0/7] kernel tinification: optionally compile out splice family of syscalls (splice, vmsplice, tee and sendfile) From: David Miller In-Reply-To: <20141125181032.GJ5050@linux.vnet.ibm.com> References: <5474ABB6.3030400@infradead.org> <20141125.121305.2094097848188324942.davem@davemloft.net> <20141125181032.GJ5050@linux.vnet.ibm.com> X-Mailer: Mew version 6.5 on Emacs 24.1 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.7 (shards.monkeyblade.net [149.20.54.216]); Tue, 25 Nov 2014 10:24:52 -0800 (PST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Paul E. McKenney" Date: Tue, 25 Nov 2014 10:10:32 -0800 > I certainly sympathize with this concern, given the importance of software > portability. However, the tiny-hardware alternative appears ot some sort > of special-purpose embedded OS, which most definitely will suffer from > software compatibility issues. I guess that the good news is that much > of the tiny hardware that used to be 8 or 16 bits is now 32 bits, which > means that it has at least some chance of running some form of Linux. ;-) And then if some fundamental part of userland (glibc, klibc, etc.) finds a useful way to use splice for a fundamental operation, we're back to square one. I simply do not agree with modifying the user facing interface, especially one with decades of precedence. -- 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/