linux-kernel - [ 16/78] mtd: doc2001: initialize writebufsize

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Message-Id: <20120411231020.935236501@linuxfoundation.org>
Date:	Wed, 11 Apr 2012 16:10:34 -0700
From:	Greg KH <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk,
	Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>,
	David Woodhouse <David.Woodhouse@...el.com>
Subject: [ 16/78] mtd: doc2001: initialize writebufsize

3.3-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>

commit cca84b569ebe3372b28949e00b0a3a17f87e2970 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 it to be equivalent to mtd->writesize because this is the maximum amount
of data the driver writes at a time.

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

---
 drivers/mtd/devices/doc2001.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/mtd/devices/doc2001.c
+++ b/drivers/mtd/devices/doc2001.c
@@ -346,7 +346,7 @@ void DoCMil_init(struct mtd_info *mtd)
 
 	/* FIXME: erase size is not always 8KiB */
 	mtd->erasesize = 0x2000;
-	mtd->writesize = 512;
+	mtd->writebufsize = mtd->writesize = 512;
 	mtd->oobsize = 16;
 	mtd->owner = THIS_MODULE;
 	mtd->erase = doc_erase;


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