tree aa2ffcc59c9c5b42ac72230704e29809aaddb361
parent 3b7885bf96e03271a9fff41124c38ed7176616e2
author Chris Mason <chris.mason@oracle.com> 1226066771 -0500
committer Chris Mason <chris.mason@oracle.com> 1226066771 -0500

Btfs: More metadata allocator optimizations

This lowers the empty cluster target for metadata allocations.  The lower
target makes it easier to do allocations and still seems to perform well.

It also fixes the allocator loop to drop the empty cluster when things
start getting difficult, avoiding false enospc warnings.

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