From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965131Ab2DKXsu (ORCPT ); Wed, 11 Apr 2012 19:48:50 -0400 Received: from mail-pz0-f52.google.com ([209.85.210.52]:51056 "EHLO mail-pz0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933995Ab2DKXWB (ORCPT ); Wed, 11 Apr 2012 19:22:01 -0400 Message-Id: <20120411231037.677080741@linuxfoundation.org> User-Agent: quilt/0.60-19.1 Date: Wed, 11 Apr 2012 16:10:48 -0700 From: Greg KH To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Artem Bityutskiy , David Woodhouse Subject: [ 13/59] mtd: lart: initialize writebufsize In-Reply-To: <20120411231213.GA13124@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.2-stable review patch. If anyone has any objections, please let me know. ------------------ From: Artem Bityutskiy commit fcc44a07dae0af16e84e93425fc8afe642ddc603 upstream. 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 writebufsize to 4 because this drivers writes at max 4 bytes at a time. Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse Signed-off-by: Greg Kroah-Hartman --- drivers/mtd/devices/lart.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/mtd/devices/lart.c +++ b/drivers/mtd/devices/lart.c @@ -630,6 +630,7 @@ static int __init lart_flash_init (void) mtd.name = module_name; mtd.type = MTD_NORFLASH; mtd.writesize = 1; + mtd.writebufsize = 4; mtd.flags = MTD_CAP_NORFLASH; mtd.size = FLASH_BLOCKSIZE_PARAM * FLASH_NUMBLOCKS_16m_PARAM + FLASH_BLOCKSIZE_MAIN * FLASH_NUMBLOCKS_16m_MAIN; mtd.erasesize = FLASH_BLOCKSIZE_MAIN;