diff options
| author | Brian Norris <computersforpeace@gmail.com> | 2012-06-22 16:35:45 -0700 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2012-09-29 14:51:55 +0100 |
| commit | a7e68834fc273930c17e3decaddc13acb87a7dce (patch) | |
| tree | 010ed62d3b24099960ff5f52e0e79562ec2a6f20 /tools/perf/scripts/python/sched-migration.py | |
| parent | 491ed06f334955578f0c43d298c46ea1a7ea9e1b (diff) | |
mtd: nand: use ECC, if present, when scanning OOB
scan_read_raw_oob() is used in only in places where the MTD_OPS_PLACE_OOB mode
is preferable to MTD_OPS_RAW mode, so use MTD_OPS_PLACE_OOB instead.
MTD_OPS_PLACE_OOB provides the same functionality with the potential[1] added
bonus of error correction.
This brings scan_block_full() in line with scan_block_fast() so that they
both read bad block markers with MTD_OPS_PLACE_OOB. This can help in
preventing 0xff markers (in good blocks) from being interpreted as bad
block indicators in the presence of a single bitflip.
Note that ECC error codes (EUCLEAN or EBADMSG) are already silently
ignored in all users of scan_read_raw_oob().
[1] Few drivers perform proper error correction on OOB data. In those
cases, the use of MTD_OPS_RAW vs. MTD_OPS_PLACE_OOB is not
significant.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'tools/perf/scripts/python/sched-migration.py')
0 files changed, 0 insertions, 0 deletions