This is a note to let you know that I've just added the patch titled
UBI: erase free PEB with bitflip in EC header
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ubi-erase-free-peb-with-bitflip-in-ec-header.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 04ed02cc7d431eb295bf9a4cb33c13319f34c48a Mon Sep 17 00:00:00 2001
From: Matthieu CASTET <matthieu.castet@xxxxxxxxxx>
Date: Wed, 22 Aug 2012 16:03:46 +0200
Subject: UBI: erase free PEB with bitflip in EC header
From: Matthieu CASTET <matthieu.castet@xxxxxxxxxx>
commit 193819cf2e6e395b1e1be2d36785dc5563a6edca upstream.
Without this patch, these PEB are not scrubbed until we put data in them.
Bitflip can accumulate latter and we can loose the EC header (but VID header
should be intact and allow to recover data).
Signed-off-by: Matthieu Castet <matthieu.castet@xxxxxxxxxx>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@xxxxxxxxxxxxxxx>
[bwh: Backported to 3.2: adjust filename, context]
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
Cc: Qiang Huang <h.huangqiang@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/mtd/ubi/scan.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/mtd/ubi/scan.c
+++ b/drivers/mtd/ubi/scan.c
@@ -997,7 +997,7 @@ static int process_eb(struct ubi_device
return err;
goto adjust_mean_ec;
case UBI_IO_FF:
- if (ec_err)
+ if (ec_err || bitflips)
err = add_to_list(si, pnum, ec, 1, &si->erase);
else
err = add_to_list(si, pnum, ec, 0, &si->free);
Patches currently in stable-queue which might be from matthieu.castet@xxxxxxxxxx are
queue-3.4/ubi-erase-free-peb-with-bitflip-in-ec-header.patch
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