tree 99edbcd7fee9cdaa69f51187834f93ada73feada
parent 94780d4de2e9339ab93df63420db70f11882634d
author Artem Bityutskiy <Artem.Bityutskiy@nokia.com> 1196959650 +0200
committer Artem Bityutskiy <Artem.Bityutskiy@nokia.com> 1198689314 +0200

UBI: add ubi_leb_map interface

The idea of this interface belongs to Adrian Hunter. The
interface is extremely useful when one has to have a guarantee
that an LEB will contain all 0xFFs even in case of an unclean
reboot. UBI does have an 'ubi_leb_erase()' call which may do
this, but it is stupid and ineffecient, because it flushes whole
queue. I should be re-worked to just be a pair of unmap,
map calls.

The user of the interfaci is UBIFS at the moment.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>