aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/trace/ftrace.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/trace/ftrace.txt')
-rw-r--r--Documentation/trace/ftrace.txt4
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/trace/ftrace.txt b/Documentation/trace/ftrace.txt
index 8179692fbb90..03485bfbd797 100644
--- a/Documentation/trace/ftrace.txt
+++ b/Documentation/trace/ftrace.txt
@@ -1588,7 +1588,7 @@ module author does not need to worry about it.
1588 1588
1589When tracing is enabled, kstop_machine is called to prevent 1589When tracing is enabled, kstop_machine is called to prevent
1590races with the CPUS executing code being modified (which can 1590races with the CPUS executing code being modified (which can
1591cause the CPU to do undesireable things), and the nops are 1591cause the CPU to do undesirable things), and the nops are
1592patched back to calls. But this time, they do not call mcount 1592patched back to calls. But this time, they do not call mcount
1593(which is just a function stub). They now call into the ftrace 1593(which is just a function stub). They now call into the ftrace
1594infrastructure. 1594infrastructure.
@@ -1625,7 +1625,7 @@ If I am only interested in sys_nanosleep and hrtimer_interrupt:
1625 1625
1626 # echo sys_nanosleep hrtimer_interrupt \ 1626 # echo sys_nanosleep hrtimer_interrupt \
1627 > set_ftrace_filter 1627 > set_ftrace_filter
1628 # echo ftrace > current_tracer 1628 # echo function > current_tracer
1629 # echo 1 > tracing_enabled 1629 # echo 1 > tracing_enabled
1630 # usleep 1 1630 # usleep 1
1631 # echo 0 > tracing_enabled 1631 # echo 0 > tracing_enabled