Commit: 444528b3e614f7f2391488d9bca8e0b872db909b Tree: 5326be87610ed3fc7a14d0f28e96e5e22207cf5f Parent: 0634857488ec6e28fa22920cd0bee3c2ac07ccfd Author: Chris Mason Wed, 14 Oct 2009 09:38:28 -0400 Committer: Chris Mason Wed, 14 Oct 2009 10:32:50 -0400 Btrfs: always pin metadata in discard mode We have an optimization in btrfs to allow blocks to be immediately freed if they were allocated in this transaction and never written. Otherwise they are pinned and freed when the transaction commits. This isn't optimal for discard mode because immediately freeing them means immediately discarding them. It is better to give the block to the pinning code and letting the (slow) discard happen later. Signed-off-by: Chris Mason