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tracing: Rename trace_buffer to array_buffer

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As we are working to remove the generic "ring_buffer" name that is used by
both tracing and perf, the ring_buffer name for tracing will be renamed to
trace_buffer, and perf's ring buffer will be renamed to perf_buffer.

As there already exists a trace_buffer that is used by the trace_arrays, it
needs to be first renamed to array_buffer.

Link: https://lore.kernel.org/r/20191213153553.GE20583@krava

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (VMware) 2020-01-09 18:53:48 -05:00
parent 56de4e8f91
commit 1c5eb4481e
18 changed files with 195 additions and 195 deletions
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18
kernel/trace/trace_events.c
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@ -237,7 +237,7 @@ bool trace_event_ignore_this_pid(struct trace_event_file *trace_file)
if (!pid_list)
return false;
data = this_cpu_ptr(tr->trace_buffer.data);
data = this_cpu_ptr(tr->array_buffer.data);
return data->ignore_pid;
}
@ -546,7 +546,7 @@ event_filter_pid_sched_switch_probe_pre(void *data, bool preempt,
pid_list = rcu_dereference_sched(tr->filtered_pids);
this_cpu_write(tr->trace_buffer.data->ignore_pid,
this_cpu_write(tr->array_buffer.data->ignore_pid,
trace_ignore_this_task(pid_list, prev) &&
trace_ignore_this_task(pid_list, next));
}
@ -560,7 +560,7 @@ event_filter_pid_sched_switch_probe_post(void *data, bool preempt,
pid_list = rcu_dereference_sched(tr->filtered_pids);
this_cpu_write(tr->trace_buffer.data->ignore_pid,
this_cpu_write(tr->array_buffer.data->ignore_pid,
trace_ignore_this_task(pid_list, next));
}
@ -571,12 +571,12 @@ event_filter_pid_sched_wakeup_probe_pre(void *data, struct task_struct *task)
struct trace_pid_list *pid_list;
/* Nothing to do if we are already tracing */
if (!this_cpu_read(tr->trace_buffer.data->ignore_pid))
if (!this_cpu_read(tr->array_buffer.data->ignore_pid))
return;
pid_list = rcu_dereference_sched(tr->filtered_pids);
this_cpu_write(tr->trace_buffer.data->ignore_pid,
this_cpu_write(tr->array_buffer.data->ignore_pid,
trace_ignore_this_task(pid_list, task));
}
@ -587,13 +587,13 @@ event_filter_pid_sched_wakeup_probe_post(void *data, struct task_struct *task)
struct trace_pid_list *pid_list;
/* Nothing to do if we are not tracing */
if (this_cpu_read(tr->trace_buffer.data->ignore_pid))
if (this_cpu_read(tr->array_buffer.data->ignore_pid))
return;
pid_list = rcu_dereference_sched(tr->filtered_pids);
/* Set tracing if current is enabled */
this_cpu_write(tr->trace_buffer.data->ignore_pid,
this_cpu_write(tr->array_buffer.data->ignore_pid,
trace_ignore_this_task(pid_list, current));
}
@ -625,7 +625,7 @@ static void __ftrace_clear_event_pids(struct trace_array *tr)
}
for_each_possible_cpu(cpu)
per_cpu_ptr(tr->trace_buffer.data, cpu)->ignore_pid = false;
per_cpu_ptr(tr->array_buffer.data, cpu)->ignore_pid = false;
rcu_assign_pointer(tr->filtered_pids, NULL);
@ -1594,7 +1594,7 @@ static void ignore_task_cpu(void *data)
pid_list = rcu_dereference_protected(tr->filtered_pids,
mutex_is_locked(&event_mutex));
this_cpu_write(tr->trace_buffer.data->ignore_pid,
this_cpu_write(tr->array_buffer.data->ignore_pid,
trace_ignore_this_task(pid_list, current));
}