From: Christoph Hellwig Subject: Re: [RFC] Heads up on sys_fallocate() Date: Mon, 5 Mar 2007 04:23:22 +0000 Message-ID: <20070305042322.GA22584@infradead.org> References: <20070117094658.GA17390@amitarora.in.ibm.com> <1172789056.11165.42.camel@kleikamp.austin.ibm.com> <20070301233819.GB31072@infradead.org> <200703032345.33137.arnd@arndb.de> <0DA8B217-DDD4-4E05-B000-DEBE3BE55B94@cam.ac.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Arnd Bergmann , Christoph Hellwig , Dave Kleikamp , Andrew Morton , "Amit K. Arora" , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-ext4@vger.kernel.org, suparna@in.ibm.com, cmm@us.ibm.com, alex@clusterfs.com, suzuki@in.ibm.com, Ulrich Drepper To: Anton Altaparmakov Return-path: Received: from pentafluge.infradead.org ([213.146.154.40]:56267 "EHLO pentafluge.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752639AbXCEEXe (ORCPT ); Sun, 4 Mar 2007 23:23:34 -0500 Content-Disposition: inline In-Reply-To: <0DA8B217-DDD4-4E05-B000-DEBE3BE55B94@cam.ac.uk> Sender: linux-ext4-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org On Sun, Mar 04, 2007 at 08:11:17PM +0000, Anton Altaparmakov wrote: > glibc cannot ever be smart enough because a file system driver will > always know better and be able to do things in a much more optimized > way. Please read the thread again. That is not what anyone proposed. The issues we're discussing is whether fallback for a filesystem that does not support preallocation natively should be done in kernelspace or in userspace.