tree e679714789ebae73bc88f3c7a8a45e15521309d8
parent 89c5497d1f933af56dac617f0fd86150942a7fb6
author Steven Rostedt (Red Hat) <rostedt@goodmis.org> 1414792925 -0400
committer Steven Rostedt <rostedt@goodmis.org> 1415040169 -0500

ftracetest: Take the first debugfs mount found

Running ftracetests on a box that mounted debugfs in two locations
made the ftracetests fail. This is because the tests uses a grep
of debugfs from the /proc/mounts file to find the debugfs mount
point, and then appends "/tracing" to that string to get the tracing
directory.

If the debugfs directory is mounted twice, then that grep will return
two answers and appending "/tracing" to a string with two lines will
not work.

Use "head -1" to only take the first mount point found.

Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>