UBI: fix mean EC calculation
authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Sat, 19 Apr 2008 17:44:31 +0000 (20:44 +0300)
committerGrazvydas Ignotas <notasas@gmail.com>
Mon, 25 May 2009 14:08:37 +0000 (17:08 +0300)
(a + b) / (c + d) != a / c + b / d. The old code errornously
assumed this incorrect formuld. Instead, just sum all erase
counters in a 64-bit variable and divide to the number of EBs
at the end.

Thanks to Adrian Hunter for pointing this out.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
drivers/mtd/ubi/scan.c
drivers/mtd/ubi/scan.h

Simple merge
Simple merge