From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark B Subject: Re: Implementing writepage Date: Sun, 26 Oct 2003 19:47:16 +0100 Sender: linux-fsdevel-owner@vger.kernel.org Message-ID: <200310261947.16169.mark@lemna.hr> References: <1067163948.888.21.camel@imladris.demon.co.uk> <20031026152819.GC5172@parcelfarce.linux.theplanet.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Cc: linux-fsdevel@vger.kernel.org Return-path: Received: from as102.hinet.hr ([195.29.150.42]:20494 "EHLO as102.htnet.hr") by vger.kernel.org with ESMTP id S263412AbTJZSl3 (ORCPT ); Sun, 26 Oct 2003 13:41:29 -0500 To: Matthew Wilcox In-Reply-To: <20031026152819.GC5172@parcelfarce.linux.theplanet.co.uk> Content-Disposition: inline List-Id: linux-fsdevel.vger.kernel.org On Sunday 26 October 2003 16:28, Matthew Wilcox wrote: > On Sun, Oct 26, 2003 at 10:25:49AM +0000, David Woodhouse wrote: > > Your file system is not broken; your application author is. Mend that > > instead. :) > > I don't see why every application should be rewritten for the needs of > the current generation of flash. If this is such a problem for flash, > then maybe the filesystem should implement its own caching strategy > for these pages. (Again, expecting the page cache to understand about > flash's special requirements is unreasonable.) > > Your argument makes sense for the embedded market, but not for mainstream. I agree, and someone maybe even cares to use the expensive flashs to keep the data secure, because in some cases the data is more valuable then the drive, but there are not so much data for use a RAID or something, it's like using a cannon to kill a mosquito. I'm telling this from expirience, since I'm currently developing a filesystem for such a purpose, with minimising writes and aligning them to the pages of the media + supporting small transactions across files (via ioctl hints by the app) + usual journalling. -- Mark Burazin mark@lemna.hr ---<>---<>---<>---<>---<>---<>---<>---<>---<> Lemna d.o.o. http://www.lemna.biz - info@lemna.hr <>---<>---<>---<>---<>---<>---<>---<>---<>---