Patchwork [6/8] mtd: lart: initialize writebufsize

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Submitter Artem Bityutskiy
Date Feb. 3, 2012, 8:43 a.m.
Message ID <eb60e25381d70803c827646fc65314abffcaf6e0.1328257053.git.artem.bityutskiy@linux.intel.com>
Download mbox | patch
Permalink /patch/139319/
State New
Headers show

Comments

Artem Bityutskiy - Feb. 3, 2012, 8:43 a.m.
From: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

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 4 because this drivers writes at max 4 bytes at a time.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Cc: stable@kernel.org [2.6.38+]
---
 drivers/mtd/devices/lart.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

Patch

diff --git a/drivers/mtd/devices/lart.c b/drivers/mtd/devices/lart.c
index a595848..6d6502c 100644
--- a/drivers/mtd/devices/lart.c
+++ b/drivers/mtd/devices/lart.c
@@ -630,6 +630,7 @@  static int __init lart_flash_init (void)
    mtd.name = module_name;
    mtd.type = MTD_NORFLASH;
    mtd.writesize = 1;
+   mtd.writebufsize = 4;
    mtd.flags = MTD_CAP_NORFLASH;
    mtd.size = FLASH_BLOCKSIZE_PARAM * FLASH_NUMBLOCKS_16m_PARAM + FLASH_BLOCKSIZE_MAIN * FLASH_NUMBLOCKS_16m_MAIN;
    mtd.erasesize = FLASH_BLOCKSIZE_MAIN;