From patchwork Mon Aug 26 09:36:45 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huang Shijie X-Patchwork-Id: 269850 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from casper.infradead.org (unknown [IPv6:2001:770:15f::2]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 1C07F2C0098 for ; Mon, 26 Aug 2013 19:43:59 +1000 (EST) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VDtKF-0007du-T4; Mon, 26 Aug 2013 09:43:08 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1VDtJv-0001mr-Ek; Mon, 26 Aug 2013 09:42:47 +0000 Received: from mail-db8lp0185.outbound.messaging.microsoft.com ([213.199.154.185] helo=db8outboundpool.messaging.microsoft.com) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VDtJM-0001es-US for linux-mtd@lists.infradead.org; Mon, 26 Aug 2013 09:42:24 +0000 Received: from mail206-db8-R.bigfish.com (10.174.8.229) by DB8EHSOBE023.bigfish.com (10.174.4.86) with Microsoft SMTP Server id 14.1.225.22; Mon, 26 Aug 2013 09:41:51 +0000 Received: from mail206-db8 (localhost [127.0.0.1]) by mail206-db8-R.bigfish.com (Postfix) with ESMTP id A4F352E018D; Mon, 26 Aug 2013 09:41:51 +0000 (UTC) X-Forefront-Antispam-Report: CIP:70.37.183.190; KIP:(null); UIP:(null); IPV:NLI; H:mail.freescale.net; RD:none; EFVD:NLI X-SpamScore: 3 X-BigFish: VS3(zzzz1f42h208ch1ee6h1de0h1fdah2073h1202h1e76h1d1ah1d2ah1fc6h1082kzz1de098h8275bh1de097hz2dh2a8h839hd24he5bhf0ah1288h12a5h12a9h12bdh12e5h137ah139eh13b6h1441h1504h1537h162dh1631h1758h1898h18e1h1946h19b5h1ad9h1b0ah1b2fh1fb3h1d0ch1d2eh1d3fh1dfeh1dffh1e23h1fe8h1ff5h1155h) Received: from mail206-db8 (localhost.localdomain [127.0.0.1]) by mail206-db8 (MessageSwitch) id 1377510110571937_23846; Mon, 26 Aug 2013 09:41:50 +0000 (UTC) Received: from DB8EHSMHS014.bigfish.com (unknown [10.174.8.245]) by mail206-db8.bigfish.com (Postfix) with ESMTP id 87A4220089; Mon, 26 Aug 2013 09:41:50 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by DB8EHSMHS014.bigfish.com (10.174.4.24) with Microsoft SMTP Server (TLS) id 14.16.227.3; Mon, 26 Aug 2013 09:41:50 +0000 Received: from tx30smr01.am.freescale.net (10.81.153.31) by 039-SN1MMR1-005.039d.mgd.msft.net (10.84.1.17) with Microsoft SMTP Server (TLS) id 14.3.146.2; Mon, 26 Aug 2013 09:41:48 +0000 Received: from shlinux2.ap.freescale.net (shlinux2.ap.freescale.net [10.192.224.44]) by tx30smr01.am.freescale.net (8.14.3/8.14.0) with ESMTP id r7Q9fU2O024982; Mon, 26 Aug 2013 02:41:46 -0700 From: Huang Shijie To: Subject: [PATCH v3 07/10] jffs2: do not support the MLC nand Date: Mon, 26 Aug 2013 17:36:45 +0800 Message-ID: <1377509808-29363-8-git-send-email-b32955@freescale.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1377509808-29363-1-git-send-email-b32955@freescale.com> References: <1377509808-29363-1-git-send-email-b32955@freescale.com> MIME-Version: 1.0 X-OriginatorOrg: freescale.com X-FOPE-CONNECTOR: Id%0$Dn%*$RO%0$TLS%0$FQDN%$TlsDn% X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130826_054213_148359_7D107368 X-CRM114-Status: GOOD ( 10.21 ) X-Spam-Score: -1.9 (-) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-1.9 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [213.199.154.185 listed in list.dnswl.org] -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: Huang Shijie , computersforpeace@gmail.com, linux-mtd@lists.infradead.org, dedekind1@gmail.com X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org We should not support the MLC nand for jffs2. So if the nand type is MLC, we quit immediatly. Signed-off-by: Huang Shijie --- fs/jffs2/fs.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c index fe3c052..09b3ed4 100644 --- a/fs/jffs2/fs.c +++ b/fs/jffs2/fs.c @@ -515,6 +515,10 @@ int jffs2_do_fill_super(struct super_block *sb, void *data, int silent) c = JFFS2_SB_INFO(sb); + /* Do not support the MLC nand */ + if (c->mtd->type == MTD_MLCNANDFLASH) + return -EINVAL; + #ifndef CONFIG_JFFS2_FS_WRITEBUFFER if (c->mtd->type == MTD_NANDFLASH) { pr_err("Cannot operate on NAND flash unless jffs2 NAND support is compiled in\n");