tree 934bf5ee171b92119020230fff9a86472f5c2a02
parent 4605a35d1ef573dc166a73ed910d0ee7b02489cb
author Darrick J. Wong <darrick.wong@oracle.com> 1381248526 -0400
committer Theodore Ts'o <tytso@mit.edu> 1381248529 -0400

libext2fs: search all possible blocks in implied_cluster_alloc()

implied_cluster_alloc() is written such that if the the user passes in
a logical block that is the zeroth block in a logical cluster (lblk %
cluster_ratio == 0), then it will assume that there is no physical
cluster mapped to any other part of the logical cluster.

This is not true if we happen to be allocating logical blocks in
reverse order.  Therefore, search the whole cluster, except for the
lblk that we passed in.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>