diff options
Diffstat (limited to 'kernel/trace/trace_output.c')
| -rw-r--r-- | kernel/trace/trace_output.c | 36 |
1 files changed, 20 insertions, 16 deletions
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c index 02272baa220..456be9063c2 100644 --- a/kernel/trace/trace_output.c +++ b/kernel/trace/trace_output.c | |||
| @@ -529,24 +529,34 @@ seq_print_ip_sym(struct trace_seq *s, unsigned long ip, unsigned long sym_flags) | |||
| 529 | * @entry: The trace entry field from the ring buffer | 529 | * @entry: The trace entry field from the ring buffer |
| 530 | * | 530 | * |
| 531 | * Prints the generic fields of irqs off, in hard or softirq, preempt | 531 | * Prints the generic fields of irqs off, in hard or softirq, preempt |
| 532 | * count and lock depth. | 532 | * count. |
| 533 | */ | 533 | */ |
| 534 | int trace_print_lat_fmt(struct trace_seq *s, struct trace_entry *entry) | 534 | int trace_print_lat_fmt(struct trace_seq *s, struct trace_entry *entry) |
| 535 | { | 535 | { |
| 536 | int hardirq, softirq; | 536 | char hardsoft_irq; |
| 537 | char need_resched; | ||
| 538 | char irqs_off; | ||
| 539 | int hardirq; | ||
| 540 | int softirq; | ||
| 537 | int ret; | 541 | int ret; |
| 538 | 542 | ||
| 539 | hardirq = entry->flags & TRACE_FLAG_HARDIRQ; | 543 | hardirq = entry->flags & TRACE_FLAG_HARDIRQ; |
| 540 | softirq = entry->flags & TRACE_FLAG_SOFTIRQ; | 544 | softirq = entry->flags & TRACE_FLAG_SOFTIRQ; |
| 541 | 545 | ||
| 546 | irqs_off = | ||
| 547 | (entry->flags & TRACE_FLAG_IRQS_OFF) ? 'd' : | ||
| 548 | (entry->flags & TRACE_FLAG_IRQS_NOSUPPORT) ? 'X' : | ||
| 549 | '.'; | ||
| 550 | need_resched = | ||
| 551 | (entry->flags & TRACE_FLAG_NEED_RESCHED) ? 'N' : '.'; | ||
| 552 | hardsoft_irq = | ||
| 553 | (hardirq && softirq) ? 'H' : | ||
| 554 | hardirq ? 'h' : | ||
| 555 | softirq ? 's' : | ||
| 556 | '.'; | ||
| 557 | |||
| 542 | if (!trace_seq_printf(s, "%c%c%c", | 558 | if (!trace_seq_printf(s, "%c%c%c", |
| 543 | (entry->flags & TRACE_FLAG_IRQS_OFF) ? 'd' : | 559 | irqs_off, need_resched, hardsoft_irq)) |
| 544 | (entry->flags & TRACE_FLAG_IRQS_NOSUPPORT) ? | ||
| 545 | 'X' : '.', | ||
| 546 | (entry->flags & TRACE_FLAG_NEED_RESCHED) ? | ||
| 547 | 'N' : '.', | ||
| 548 | (hardirq && softirq) ? 'H' : | ||
| 549 | hardirq ? 'h' : softirq ? 's' : '.')) | ||
| 550 | return 0; | 560 | return 0; |
| 551 | 561 | ||
| 552 | if (entry->preempt_count) | 562 | if (entry->preempt_count) |
| @@ -554,13 +564,7 @@ int trace_print_lat_fmt(struct trace_seq *s, struct trace_entry *entry) | |||
| 554 | else | 564 | else |
| 555 | ret = trace_seq_putc(s, '.'); | 565 | ret = trace_seq_putc(s, '.'); |
| 556 | 566 | ||
| 557 | if (!ret) | 567 | return ret; |
| 558 | return 0; | ||
| 559 | |||
| 560 | if (entry->lock_depth < 0) | ||
| 561 | return trace_seq_putc(s, '.'); | ||
| 562 | |||
| 563 | return trace_seq_printf(s, "%d", entry->lock_depth); | ||
| 564 | } | 568 | } |
| 565 | 569 | ||
| 566 | static int | 570 | static int |
