Btrfs: Checksum tree blocks in the background

Tree blocks were using async bio submission, but the sum was still
being done directly during writepage.  This moves the checksumming
into the worker thread.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
1 file changed
tree: 8622438279a58a424782a5267eac73a0983144ad
  1. fs/