From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [195.209.228.254] (helo=shelob.oktetlabs.ru) by canuck.infradead.org with esmtps (Exim 4.52 #1 (Red Hat Linux)) id 1EOVGn-0007IN-0E for linux-mtd@lists.infradead.org; Sun, 09 Oct 2005 03:07:15 -0400 Message-ID: <4348C169.2050907@yandex.ru> Date: Sun, 09 Oct 2005 11:06:17 +0400 From: "Artem B. Bityutskiy" MIME-Version: 1.0 To: zhao forrest References: In-Reply-To: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: linux-mtd@lists.infradead.org Subject: Re: [PATCH]erase block header(revision 4) List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , zhao forrest wrote: > It's true that "c->cleanmarker_size was 0" for NAND flash. > But besides NAND flash, "c->cleanmarker_size was 0" is also true > for dataflash. That means that cleanmarker was not needed for > dataflash for some reason that I don't know :) DataFlash is has a minimum IO unit (DataFlash block, 528/1056 AFAIR), and has no OOB. So the cleanmarker would consume the whole DataFlash block which considered wasteful I suppose. -- Best Regards, Artem B. Bityuckiy, St.-Petersburg, Russia.