fstests: don't oom the box opening tmpfiles (take 2)

For the t_open_tmpfiles tests that run multiple jobs in parallel,
limit ourselves to half of file-max for all jobs combined,
so that we don't OOM the test machine.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
2 files changed