Patchwork [8/8] mtd: sst25l: initialize writebufsize

mail settings
Submitter Artem Bityutskiy
Date Feb. 3, 2012, 8:43 a.m.
Message ID <>
Download mbox | patch
Permalink /patch/139321/
State Accepted
Commit c4cc625ea5958d065c21cc0fcea29e9ed8f3d2bc
Headers show


Artem Bityutskiy - Feb. 3, 2012, 8:43 a.m.
From: Artem Bityutskiy <>

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 <>
 drivers/mtd/devices/sst25l.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)


diff --git a/drivers/mtd/devices/sst25l.c b/drivers/mtd/devices/sst25l.c
index a665eba..8b9ffaf 100644
--- a/drivers/mtd/devices/sst25l.c
+++ b/drivers/mtd/devices/sst25l.c
@@ -402,6 +402,7 @@  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;