tree 8bec0a45617f30e24b112b66973ac3eac72da834
parent 1de9415906bccab51fb74c6adf575948610f0909
author Artem Bityutskiy <Artem.Bityutskiy@nokia.com> 1216985931 +0300
committer Artem Bityutskiy <Artem.Bityutskiy@nokia.com> 1218616648 +0300

UBIFS: reserve more space for index

At the moment UBIFS reserves twice old index size space for the
index. But this is not enough in some cases, because if the indexing
node are very fragmented and there are many small gaps, while the
dirty index has big znodes - in-the-gaps method would fail.

Thus, reserve trise as more, in which case we are guaranteed that
we can commit in any case.

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