fsx

• fstests: https://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git/tree/ltp/fsx.c
• LTP: https://github.com/linux-test-project/ltp/tree/master/testcases/kernel/fs/fsx-linux

fsstress

• fstests: https://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git/tree/ltp/fsstress.c
• LTP: https://github.com/linux-test-project/ltp/tree/master/testcases/kernel/fs/fsstress

goals

• make command line interface a bit more user friendly (more options, long options)
• fully compatible with fstests version of fsx or fsstress
• sync new changes from the source repositories