[PATCH v2 0/4] Fixes for mkfs.xfs with high amount of CPUs and SSDs

Since xfsprogs v6.13.0 mkfs.xfs scales the log size on SSDs with the amount
of CPUs. This leads to various failures from ENOSPC in generic/102 and generic/172
(the xfs log can take up to 256MB on 1GB test FS) or depleting the dmthin 
metadata area in generic/347. Downsize of the percentage change is we cannot 
longer check the exact amount of data xfs_io wrote in the generic/102 test.

The xfs/21{6,7} are testing the old behavior before the concurrency option was 
introduced. Forcing the old behavior on newer mkfs.xfs.

Lukas Herbolt (4):
  common/rc: Add helper to calculate percentage of free space available
  common/xfs: helper function to check if -l/-d/-r concurrency flags.
  generic/{102,172,347}: Adapt test for XFS on systems with 128+CPUs +
    SSDs
  xfs/21{6,7} Use default -l concurrency=0 on mkfs.xfs that supports it

 common/rc             | 10 ++++++++++
 common/xfs            |  9 +++++++++
 tests/generic/102     |  5 +++--
 tests/generic/102.out | 20 ++++++++++----------
 tests/generic/172     |  8 ++++----
 tests/generic/347     |  9 ++++++++-
 tests/xfs/216         |  6 +++++-
 tests/xfs/217         |  7 ++++++-
 8 files changed, 55 insertions(+), 19 deletions(-)

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2.54.0