From ed031e71e1b4f0b0d7a3115821daffd6eba62a03 Mon Sep 17 00:00:00 2001
From: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Date: Thu, 6 Dec 2007 18:47:30 +0200
Subject: [PATCH] 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>
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