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Two minor fixes:

Browse source 
- Fix trace event header include guards, as several did not match
    the #define to the #ifdef
 
  - Remove a redundant test to ftrace_graph_notrace_addr() that
    was accidentally added.
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Merge tag 'trace-v5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:
 "Two minor fixes:

   - Fix trace event header include guards, as several did not match the
     #define to the #ifdef

   - Remove a redundant test to ftrace_graph_notrace_addr() that was
     accidentally added"

* tag 'trace-v5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  fgraph: Remove redundant ftrace_graph_notrace_addr() test
  tracing: Fix header include guards in trace event headers
This commit is contained in:
Linus Torvalds 2019-07-31 10:26:59 -07:00
commit d2eee9fca1
5 changed files with 14 additions and 17 deletions
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17
kernel/trace/trace_functions_graph.c
View file

@ -137,6 +137,13 @@ int trace_graph_entry(struct ftrace_graph_ent *trace)
if (trace_recursion_test(TRACE_GRAPH_NOTRACE_BIT))
return 0;
/*
* Do not trace a function if it's filtered by set_graph_notrace.
* Make the index of ret stack negative to indicate that it should
* ignore further functions. But it needs its own ret stack entry
* to recover the original index in order to continue tracing after
* returning from the function.
*/
if (ftrace_graph_notrace_addr(trace->func)) {
trace_recursion_set(TRACE_GRAPH_NOTRACE_BIT);
/*
@ -155,16 +162,6 @@ int trace_graph_entry(struct ftrace_graph_ent *trace)
if (ftrace_graph_ignore_irqs())
return 0;
/*
* Do not trace a function if it's filtered by set_graph_notrace.
* Make the index of ret stack negative to indicate that it should
* ignore further functions. But it needs its own ret stack entry
* to recover the original index in order to continue tracing after
* returning from the function.
*/
if (ftrace_graph_notrace_addr(trace->func))
return 1;
/*
* Stop here if tracing_threshold is set. We only write function return
* events to the ring buffer.