From patchwork Fri Feb 3 08:43:09 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Artem Bityutskiy X-Patchwork-Id: 139314 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from merlin.infradead.org (unknown [IPv6:2001:4978:20e::2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 8D7F0B71C7 for ; Fri, 3 Feb 2012 19:44:25 +1100 (EST) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1RtEju-0007pt-4t; Fri, 03 Feb 2012 08:43:26 +0000 Received: from mga02.intel.com ([134.134.136.20]) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1RtEjg-0007na-JE for linux-mtd@lists.infradead.org; Fri, 03 Feb 2012 08:43:13 +0000 Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga101.jf.intel.com with ESMTP; 03 Feb 2012 00:43:11 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.67,352,1309762800"; d="scan'208";a="103474721" Received: from blue.fi.intel.com ([10.237.72.161]) by orsmga001.jf.intel.com with ESMTP; 03 Feb 2012 00:43:10 -0800 From: Artem Bityutskiy To: MTD Maling List Subject: [PATCH 3/8] mtd: doc2001: initialize writebufsize Date: Fri, 3 Feb 2012 10:43:09 +0200 Message-Id: X-Mailer: git-send-email 1.7.9 In-Reply-To: <4fe90e9a0ba750bbdb34d04ca3437b493a19277f.1328257053.git.artem.bityutskiy@linux.intel.com> References: <4fe90e9a0ba750bbdb34d04ca3437b493a19277f.1328257053.git.artem.bityutskiy@linux.intel.com> In-Reply-To: <4fe90e9a0ba750bbdb34d04ca3437b493a19277f.1328257053.git.artem.bityutskiy@linux.intel.com> References: <4fe90e9a0ba750bbdb34d04ca3437b493a19277f.1328257053.git.artem.bityutskiy@linux.intel.com> X-Spam-Note: CRM114 invocation failed X-Spam-Score: -5.0 (-----) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-5.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at http://www.dnswl.org/, high trust [134.134.136.20 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (dedekind1[at]gmail.com) 0.0 DKIM_ADSP_CUSTOM_MED No valid author signature, adsp_override is CUSTOM_MED 0.8 SPF_NEUTRAL SPF: sender does not match SPF record (neutral) 0.2 FREEMAIL_ENVFROM_END_DIGIT Envelope-from freemail username ends in digit (dedekind1[at]gmail.com) -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] 0.9 NML_ADSP_CUSTOM_MED ADSP custom_med hit, and not from a mailing list X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-mtd-bounces@lists.infradead.org Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org From: Artem Bityutskiy The writebufsize concept was introduce by commit "0e4ca7e mtd: add writebufsize field to mtd_info struct" and it represents the maximum amount of data the device writes to the media at a time. This is an important parameter for UBIFS which is used during recovery and which basically defines how big a corruption caused by a power cut can be. Set it to be equivalent to mtd->writesize because this is the maximum amount of data the driver writes at a time. Signed-off-by: Artem Bityutskiy Cc: stable@kernel.org [2.6.38+] --- drivers/mtd/devices/doc2001.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/mtd/devices/doc2001.c b/drivers/mtd/devices/doc2001.c index 3785733..b1185f9 100644 --- a/drivers/mtd/devices/doc2001.c +++ b/drivers/mtd/devices/doc2001.c @@ -346,7 +346,7 @@ void DoCMil_init(struct mtd_info *mtd) /* FIXME: erase size is not always 8KiB */ mtd->erasesize = 0x2000; - mtd->writesize = 512; + mtd->writebufsize = mtd->writesize = 512; mtd->oobsize = 16; mtd->owner = THIS_MODULE; mtd->_erase = doc_erase;