From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Wilcox Subject: Re: AZFS file system proposal Date: Mon, 9 Jun 2008 06:55:30 -0600 Message-ID: <20080609125530.GF30405@parisc-linux.org> References: <20080609104650.4f220492@mercedes-benz.boeblingen.de.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org To: Maxim Shchetynin Return-path: Received: from palinux.external.hp.com ([192.25.206.14]:40942 "EHLO mail.parisc-linux.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757545AbYFIMzr (ORCPT ); Mon, 9 Jun 2008 08:55:47 -0400 Content-Disposition: inline In-Reply-To: <20080609104650.4f220492@mercedes-benz.boeblingen.de.ibm.com> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Mon, Jun 09, 2008 at 10:46:50AM +0200, Maxim Shchetynin wrote: > +config AZ_FS > + tristate "AZFS filesystem support" > + help > + Non-buffered filesystem for block devices with a gendisk and > + with direct_access() method in gendisk->fops. > + AZFS does not buffer outgoing traffic and is doing no read ahead. > + It supports mount options (given with -o) bs=x,uid=x,gid=x. > + If block-size (bs) is not specified AZFS uses block-size used > + by block device. Though mmap() method is available only if > + block-size equals to or is greater than system page size. This is a terrible description. I can't even suggest better wording because I don't understand it. The correct wording would not mention gendisks, fops or direct_access(). It would tell the user what they might use it for. -- Intel are signing my paycheques ... these opinions are still mine "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step."