tracing: Add inter-event blurb to HIST_TRIGGERS config option

So that users know that inter-event tracing is supported as part of
the HIST_TRIGGERS option, include text to that effect in the help
text.

Link: http://lkml.kernel.org/r/a38e24231d8d980be636b56d35814570acfd167a.1516069914.git.tom.zanussi@linux.intel.com
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 0b249e2..c4f0f2e 100644 (file)
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -606,7 +606,10 @@ config HIST_TRIGGERS
          event activity as an initial guide for further investigation
          using more advanced tools.
 
-         See Documentation/trace/events.txt.
+         Inter-event tracing of quantities such as latencies is also
+         supported using hist triggers under this option.
+
+         See Documentation/trace/histogram.txt.
          If in doubt, say N.
 
 config MMIOTRACE_TEST