tree 59c82cc7f5d5de3b65b6eba24b505684eb7941d6
parent c1e32da616a17813f11b701a7a87775d35c12e3a
author Chris Mason <chris.mason@oracle.com> 1201038479 -0500
committer Chris Mason <chris.mason@oracle.com> 1222355039 -0400

Btrfs: Fix hole insertion corner cases

There were a few places that could cause duplicate extent insertion,
this adjusts the code that creates holes to avoid it.

lookup_extent_map is changed to correctly return all of the extents in a
range, even when there are none matching at the start of the range.

Signed-off-by: Chris Mason <chris.mason@oracle.com>