- seq_puts(m, "# _--------=> CPU# \n"
- "# / _-------=> irqs-off \n"
- "# | / _------=> need-resched \n"
- "# || / _-----=> need-resched_lazy \n"
- "# ||| / _----=> hardirq/softirq \n"
- "# |||| / _---=> preempt-depth \n"
- "# ||||| / _--=> preempt-lazy-depth\n"
- "# |||||| / _-=> migrate-disable \n"
- "# ||||||| / delay \n"
- "# cmd pid |||||||| time | caller \n"
- "# \\ / |||||||| \\ | / \n");
+ seq_puts(m, "# _--------=> CPU# \n"
+ "# / _-------=> irqs-off \n"
+ "# | / _------=> need-resched \n"
+ "# || / _-----=> need-resched_lazy \n"
+ "# ||| / _----=> hardirq/softirq \n"
+ "# |||| / _---=> preempt-depth \n"
+ "# ||||| / _--=> preempt-lazy-depth\n"
+ "# |||||| / _-=> migrate-disable \n"
+ "# ||||||| / delay \n"
+ "# cmd pid |||||||| time | caller \n"
+ "# \\ / |||||||| \\ | / \n");
"# |/ _-----=> need-resched_lazy\n"
"# || / _---=> hardirq/softirq\n"
"# ||| / _--=> preempt-depth\n"
"# |/ _-----=> need-resched_lazy\n"
"# || / _---=> hardirq/softirq\n"
"# ||| / _--=> preempt-depth\n"
- "# |||| /_--=> preempt-lazy-depth\n"
- "# ||||| _-=> migrate-disable \n"
- "# ||||| / delay\n"
- "# TASK-PID CPU# |||||| TIMESTAMP FUNCTION\n"
- "# | | | |||||| | |\n");
+ "# |||| / _-=> preempt-lazy-depth\n"
+ "# ||||| / _-=> migrate-disable \n"
+ "# |||||| / delay\n"
+ "# TASK-PID CPU# ||||||| TIMESTAMP FUNCTION\n"
+ "# | | | ||||||| | |\n");
/*
* Avoid more than one consumer on a single file descriptor
* This is just a matter of traces coherency, the ring buffer itself
* is protected.
*/
mutex_lock(&iter->mutex);
/*
* Avoid more than one consumer on a single file descriptor
* This is just a matter of traces coherency, the ring buffer itself
* is protected.
*/
mutex_lock(&iter->mutex);
if (iter->trace->read) {
sret = iter->trace->read(iter, filp, ubuf, cnt, ppos);
if (sret)
if (iter->trace->read) {
sret = iter->trace->read(iter, filp, ubuf, cnt, ppos);
if (sret)
again:
trace_access_lock(iter->cpu_file);
entries = ring_buffer_entries_cpu(iter->trace_buffer->buffer, iter->cpu_file);
again:
trace_access_lock(iter->cpu_file);
entries = ring_buffer_entries_cpu(iter->trace_buffer->buffer, iter->cpu_file);