[patch 0/3] xfstests: tests for btrfs publishing/export patchset

[Jeff Mahoney <jeffm@xxxxxxxx>]

These are the tests that Josef requested accompany the submission of
the btrfs publishing/export patchset[1].

100: Test new global metadata reservation ioctl
101: Test new sysfs exporting of allocation and device membership
102: Test new sysfs exporting of feature bits
103: Test setting/clearing feature bits via ioctl
104: Test setting/clearing feature bits via sysfs

As part of the ioctl testing, I added a helper that can be extended
easily to export simple information via ioctl. This means that the
tests can be independent of btrfsprogs version or its output formatting.

-Jeff

[1] http://thread.gmane.org/gmane.comp.file-systems.btrfs/29307