From manningc2@actrix.gen.nz Wed Dec 30 20:52:09 2009 Received: from pop.scorch.co.nz ([203.167.210.162] helo=firstline.co.nz) by stoneboat.aleph1.co.uk with smtp (Exim 4.69) (envelope-from ) id 1NQ5WV-0004Xt-OH for yaffs@lists.aleph1.co.uk; Wed, 30 Dec 2009 20:52:09 +0000 Received: (qmail 4125 invoked by uid 453); 30 Dec 2009 20:51:56 -0000 X-Virus-Checked: Checked by ClamAV on firstline.co.nz Received: from Unknown (HELO linux-dual-head.local) (10.14.210.25) by firstline.co.nz (qpsmtpd/0.40) with ESMTP; Thu, 31 Dec 2009 09:51:56 +1300 From: Charles Manning To: yaffs@lists.aleph1.co.uk Date: Thu, 31 Dec 2009 09:51:56 +1300 User-Agent: KMail/1.9.10 References: <630851df0912280154s5196edbfs32cd379140d477de@mail.gmail.com> In-Reply-To: <630851df0912280154s5196edbfs32cd379140d477de@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200912310951.56131.manningc2@actrix.gen.nz> X-SA-Exim-Connect-IP: 203.167.210.162 X-SA-Exim-Mail-From: manningc2@actrix.gen.nz X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on stoneboat.aleph1.co.uk X-Spam-Level: X-Spam-Status: No, score=-1.9 required=4.5 tests=AWL,BAYES_00,SPF_NEUTRAL autolearn=no version=3.2.5 X-SA-Exim-Version: 4.2.1 (built Wed, 25 Jun 2008 17:14:11 +0000) X-SA-Exim-Scanned: Yes (on stoneboat.aleph1.co.uk) Subject: Re: [Yaffs] multi page read/write support in YAFFS2 !!! X-BeenThere: yaffs@lists.aleph1.co.uk X-Mailman-Version: 2.1.11 Precedence: list List-Id: Discussion of YAFFS NAND flash filesystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 30 Dec 2009 20:52:09 -0000 On Monday 28 December 2009 22:54:32 Murali N wrote: > Hi All, > Can any one tell me, is there a multi page read/write support in YAFFS2 ? > Right now i am seeing only a single page read/write request from the > YAFFS2. > YAFFS does not have multi-page r/w support. It would be pretty easy to add this at the low levels by just buffering up the writes and only actually doing the writes when you have enough pages. An alternative is to structure the flash as larger "virtual pages" so that one virtual page maps to many flash pages. -- CHarles