[PATCH v2 0/4] xfstests: introduce xfs tests 304/305 to verify turn quota/project quota off

[Jeff Liu]

Hi Folks,

Here is the 2nd version for introducing two new xfs specified tests to verify that
we can turn group/project quotas off while user quota is on and fsstress is running.

As a preparation step, the 1st patch is trying to introduce a couple of pre-checkup
routines to verify that if mkfs.xfs and kernel are have crc feature or not as per
Dave's comments.

v1->v2:
- Introduce _require_xfs_mkfs_crc to verify if mkfs.xfs have crc feature or not
- Introduce _require_xfs_crc to verify if xfs kernel have crc feature or not
- xfs/299, remove v5 super block number "5" from golden output file
- Re-number both test cases to xfs/304 and xfs/305 separately
- Redirect "Version 5 superblock detected. xfsprogs has EXPERIMENTAL support enabled!
  Use of these features is at your own risk!" to /dev/null from mkfs.xfs for all those
  changes.


Thanks,
-Jeff