tree 54be031aa42874f827e1c7d2aa79f1ec54b36a33
parent 3b30c22f64a6bb297719c60e494af1d26563f584
author Chris Mason <chris.mason@oracle.com> 1244586915 -0400
committer Chris Mason <chris.mason@oracle.com> 1244647791 -0400

Btrfs: avoid allocation clusters that are too spread out

In SSD mode for data, and all the time for metadata the allocator
will try to find a cluster of nearby blocks for allocations.  This
commit adds extra checks to make sure that each free block in the
cluster is close to the last one.

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