From manningc2@actrix.gen.nz Fri Jun 19 03:54:32 2009 Received: from smtp.firstline.co.nz ([203.167.210.162] helo=firstline.co.nz) by stoneboat.aleph1.co.uk with smtp (Exim 4.69) (envelope-from ) id 1MHUFD-00049Q-Bf for yaffs@lists.aleph1.co.uk; Fri, 19 Jun 2009 03:54:32 +0100 Received: (qmail 10473 invoked by uid 453); 19 Jun 2009 02:54:09 -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; Fri, 19 Jun 2009 14:54:09 +1200 From: Charles Manning To: yaffs@lists.aleph1.co.uk, "=?gb2312?q?=D1=EE=B1=EA?=(Vinge)" Date: Fri, 19 Jun 2009 14:54:08 +1200 User-Agent: KMail/1.9.10 References: <4a23725b.1b018e0a.286a.302b@mx.google.com> In-Reply-To: <4a23725b.1b018e0a.286a.302b@mx.google.com> MIME-Version: 1.0 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Message-Id: <200906191454.08294.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=0.0 required=5.0 tests=AWL,BAYES_05, MIME_CHARSET_FARAWAY,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] Is there a method sync cache to disk 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: Fri, 19 Jun 2009 02:54:33 -0000 Hello Sorry about taking long to answer this. Unfortunately this ended up in my s= pam=20 folder. On Monday 01 June 2009 18:16:37 =D1=EE=B1=EA(Vinge) wrote: > Hi all: > I just port yaff2 to ucos in direct mode with a 2k page 512m nand flash. > But as user of my device like to just shutdown the power. yaffs2 file > system is most likey not been unmount! > Is there a method to sync cache to=20 > nand? Or how can I just provent lost the cache data to be lost in powerof= f? > Should I close the file every time after write to it? If you close a file then it will be fully flushed to flash. yaffs_flush() will also flush the file without closing it. > Or event unmount and remount the dev? You do not need to do that. =2D- Charles