GitHub-Mirror/linux-bl808
2
0
Fork 0
mirror of https://github.com/Fishwaldo/linux-bl808.git synced 2025-06-17 20:25:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

function_graph: Remove the use of FTRACE_NOTRACE_DEPTH

Browse source 
The curr_ret_stack is no longer set to a negative value when a function is
not to be traced by the function graph tracer. Remove the usage of
FTRACE_NOTRACE_DEPTH, as it is no longer needed.

Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (VMware) 2018-11-18 18:44:04 -05:00
parent 421d1069cd
commit 761efe8a94
3 changed files with 0 additions and 31 deletions
Download patch file Download diff file Expand all files Collapse all files

11
kernel/trace/trace_functions_graph.c
View file

@ -115,9 +115,6 @@ unsigned long ftrace_graph_ret_addr(struct task_struct *task, int *idx,
if (ret != (unsigned long)return_to_handler)
return ret;
if (index < -1)
index += FTRACE_NOTRACE_DEPTH;
if (index < 0)
return ret;
@ -675,10 +672,6 @@ print_graph_entry_leaf(struct trace_iterator *iter,
cpu_data = per_cpu_ptr(data->cpu_data, cpu);
/* If a graph tracer ignored set_graph_notrace */
if (call->depth < -1)
call->depth += FTRACE_NOTRACE_DEPTH;
/*
* Comments display at + 1 to depth. Since
* this is a leaf function, keep the comments
@ -721,10 +714,6 @@ print_graph_entry_nested(struct trace_iterator *iter,
struct fgraph_cpu_data *cpu_data;
int cpu = iter->cpu;
/* If a graph tracer ignored set_graph_notrace */
if (call->depth < -1)
call->depth += FTRACE_NOTRACE_DEPTH;
cpu_data = per_cpu_ptr(data->cpu_data, cpu);
cpu_data->depth = call->depth;