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Commit b6043874 authored by Artem Bityutskiy's avatar Artem Bityutskiy Committed by David Woodhouse
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mtd: block2mtd: initialize writebufsize 



The writebufsize concept was introduce by commit
"0e4ca7e5 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: default avatarArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
Acked-by: default avatarJoern Engel <joern@lazybastard.org>
Cc: stable@kernel.org [2.6.38+]
Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent 045ead34

drivers/mtd/devices/block2mtd.c

+1 −0
Original line number Diff line number Diff line
@@ -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;