Commit Briefs
Add fsx tool (tools, origin/tools)
https://codemonkey.org.uk/projects/fsx/fsx-linux.c
Add postmark tool
http://fsbench.filesystems.org/bench/postmark-1_5.c
https://codemonkey.org.uk/projects/fsx/fsx-linux.c
http://fsbench.filesystems.org/bench/postmark-1_5.c