The directory cocci/ contains semantic scripts, specific to btrfs code base.
Scripts with prefix bug- are checking for bugs patterns, opt- are optional,
either cleanups or unification hints. Any output is supposed to be manually
reviewed and the scripts do not produce a perfect diff.
How to use it:
$ cd path/to/sources
$ spatch -sp_file $WORKFLOW_DIR/cocci/script.cocci -dir . -include_headers
This will run the script.cocci looking for patterns in the current directory
and recursively in subdirectories. If there's something found a diff is
printed.