From: Artem Bityutskiy Date: Fri, 3 Sep 2010 11:22:17 +0000 (+0300) Subject: UBI: handle bit-flips when no header found X-Git-Tag: v2.6.37-rc1~169^2~11 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=92e1a7d9e7e07fb1cf0cbbcdf202938d0819b54d;p=pandora-kernel.git UBI: handle bit-flips when no header found Currently UBI has one small flaw - when we read EC or VID header, but find only 0xFF bytes, we return UBI_IO_FF and do not report whether we had bit-flips or not. In case of the VID header, the scanning code adds this PEB to the free list, even though there were bit-flips. Imagine the following situation: we start writing VID header to a PEB and have a power cut, so the PEB becomes unstable. When we scan and read the PEB, we get a bit-flip. Currently, UBI would just ignore this and treat the PEB as free. This patch changes UBI behavior and now UBI will schedule this PEB for erasure. Signed-off-by: Artem Bityutskiy --- Reading git-diff-tree failed