From: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Date: Fri, 3 Feb 2012 08:16:50 +0000 (+0200)
Subject: mtd: sst25l: initialize writebufsize
X-Git-Tag: firefly_0821_release~7541^2~1438
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=f18fbe02726fffd8c7dac0ff7e95c05ef81d2d47;p=firefly-linux-kernel-4.4.55.git

mtd: sst25l: initialize writebufsize

commit c4cc625ea5958d065c21cc0fcea29e9ed8f3d2bc 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 the flash page size because it is the maximum amount of
data it writes at a time.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/mtd/devices/sst25l.c b/drivers/mtd/devices/sst25l.c
index 1e2c430aaad2..867710a09a48 100644
--- a/drivers/mtd/devices/sst25l.c
+++ b/drivers/mtd/devices/sst25l.c
@@ -406,6 +406,7 @@ static int __devinit sst25l_probe(struct spi_device *spi)
 	flash->mtd.flags	= MTD_CAP_NORFLASH;
 	flash->mtd.erasesize	= flash_info->erase_size;
 	flash->mtd.writesize	= flash_info->page_size;
+	flash->mtd.writebufsize	= flash_info->page_size;
 	flash->mtd.size		= flash_info->page_size * flash_info->nr_pages;
 	flash->mtd.erase	= sst25l_erase;
 	flash->mtd.read		= sst25l_read;