From b604387411ec6a072e95910099262616edd2bd2f Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Fri, 3 Feb 2012 09:32:44 +0200 Subject: [PATCH] mtd: block2mtd: initialize writebufsize 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 Cc: stable@kernel.org [2.6.38+] Signed-off-by: David Woodhouse --- drivers/mtd/devices/block2mtd.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c index d9e75dafdd45..0fccf149f5aa 100644 --- a/drivers/mtd/devices/block2mtd.c +++ b/drivers/mtd/devices/block2mtd.c @@ -283,6 +283,7 @@ 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; -- 2.20.1