diff options
Diffstat (limited to 'kernel/trace/trace.h')
| -rw-r--r-- | kernel/trace/trace.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index be3b3cf95f4..648433d18cc 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -72,6 +72,23 @@ struct print_entry { }; /* + * trace_flag_type is an enumeration that holds different + * states when a trace occurs. These are: + * IRQS_OFF - interrupts were disabled + * NEED_RESCED - reschedule is requested + * HARDIRQ - inside an interrupt handler + * SOFTIRQ - inside a softirq handler + * CONT - multiple entries hold the trace item + */ +enum trace_flag_type { + TRACE_FLAG_IRQS_OFF = 0x01, + TRACE_FLAG_NEED_RESCHED = 0x02, + TRACE_FLAG_HARDIRQ = 0x04, + TRACE_FLAG_SOFTIRQ = 0x08, + TRACE_FLAG_CONT = 0x10, +}; + +/* * The trace field - the most basic unit of tracing. This is what * is printed in the end as a single line in the trace output, such as: * @@ -330,6 +347,8 @@ extern int trace_selftest_startup_sysprof(struct tracer *trace, extern void *head_page(struct trace_array_cpu *data); extern int trace_seq_printf(struct trace_seq *s, const char *fmt, ...); +extern void trace_seq_print_cont(struct trace_seq *s, + struct trace_iterator *iter); extern ssize_t trace_seq_to_user(struct trace_seq *s, char __user *ubuf, size_t cnt); extern long ns2usecs(cycle_t nsec); |