1. 9630308 Btrfs: use hybrid extents+bitmap rb tree for free space by Josef Bacik · 15 years ago
  2. 451d758 Btrfs: add mount -o ssd_spread to spread allocations out by Chris Mason · 16 years ago
  3. fa9c0d79 Btrfs: rework allocation clustering by Chris Mason · 16 years ago