[PATCH 0/5]: CLI and feature improvements for check-parallel

[Dave Chinner <david@fromorbit.com>]

Hi folks,

This patchset brings some new functionality to check-parallel to
make it easier to run across different machines and filesystems.
The patch seti adds these features:

- auto-adjusts concurrency for the machine it is running on.
- adds CLI support of selection of tests. These CLI parameters are
  identical to the check CLI parameters and the test lists are built
  using the same code.
- adds support for logwrites devices so that all the test that use
  dm-logwrites are now enabled
- adds support for specifying the initial filesystem type to test
  on the CLI. This makes it easy to select xfs, btrfs, ext4, etc as
  the target filesystem type that is to be tested.
- Only block device based filesystems can be used with
  check-parallel, and this is now enforced at FSTYP selection time.

For example, testing the rw group on ext4 is now a simple matter of
adding the "-f ext4" parameter to the command line like so:

$ time sudo ./check-parallel -D /mnt/xfs -f ext4 -g rw -x dump
Runner 12 Failures:  ext4/308
Runner 1 Failures:  generic/095
Runner 21 Failures:  generic/042
Runner 51 Failures:  generic/627
Runner 8 Failures:  generic/032
Runner 13 Failures:  generic/019
Runner 34 Failures:  generic/347
.....

Options like exclude files, groups and lists also work natively in
check-parallel now, same as they do in check...

-Dave.