From: Artem Bityutskiy Date: Fri, 3 Feb 2012 07:32:44 +0000 (+0200) Subject: mtd: block2mtd: initialize writebufsize X-Git-Tag: v3.2.15~48 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=3a3df72123208ed08e8475ce5f542317b41e12f5;p=karo-tx-linux.git mtd: block2mtd: initialize writebufsize commit b604387411ec6a072e95910099262616edd2bd2f 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. However, we forgot to set this parameter for block2mtd. Set it to PAGE_SIZE because this is actually the amount of data we write at a time. Signed-off-by: Artem Bityutskiy Acked-by: Joern Engel Signed-off-by: David Woodhouse Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c index b78f23169d4e..8cd983cdc643 100644 --- a/drivers/mtd/devices/block2mtd.c +++ b/drivers/mtd/devices/block2mtd.c @@ -284,6 +284,7 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size) dev->mtd.size = dev->blkdev->bd_inode->i_size & PAGE_MASK; dev->mtd.erasesize = erase_size; dev->mtd.writesize = 1; + dev->mtd.writebufsize = PAGE_SIZE; dev->mtd.type = MTD_RAM; dev->mtd.flags = MTD_CAP_RAM; dev->mtd.erase = block2mtd_erase;