diff options
Diffstat (limited to 'kernel')
-rw-r--r-- | kernel/trace/ring_buffer.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 2606cee433da..d4d3580a894a 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c | |||
@@ -2383,7 +2383,6 @@ rb_buffer_peek(struct ring_buffer *buffer, int cpu, u64 *ts) | |||
2383 | * the box. Return the padding, and we will release | 2383 | * the box. Return the padding, and we will release |
2384 | * the current locks, and try again. | 2384 | * the current locks, and try again. |
2385 | */ | 2385 | */ |
2386 | rb_advance_reader(cpu_buffer); | ||
2387 | return event; | 2386 | return event; |
2388 | 2387 | ||
2389 | case RINGBUF_TYPE_TIME_EXTEND: | 2388 | case RINGBUF_TYPE_TIME_EXTEND: |
@@ -2519,6 +2518,8 @@ ring_buffer_peek(struct ring_buffer *buffer, int cpu, u64 *ts) | |||
2519 | if (dolock) | 2518 | if (dolock) |
2520 | spin_lock(&cpu_buffer->reader_lock); | 2519 | spin_lock(&cpu_buffer->reader_lock); |
2521 | event = rb_buffer_peek(buffer, cpu, ts); | 2520 | event = rb_buffer_peek(buffer, cpu, ts); |
2521 | if (event && event->type_len == RINGBUF_TYPE_PADDING) | ||
2522 | rb_advance_reader(cpu_buffer); | ||
2522 | if (dolock) | 2523 | if (dolock) |
2523 | spin_unlock(&cpu_buffer->reader_lock); | 2524 | spin_unlock(&cpu_buffer->reader_lock); |
2524 | local_irq_restore(flags); | 2525 | local_irq_restore(flags); |
@@ -2590,12 +2591,9 @@ ring_buffer_consume(struct ring_buffer *buffer, int cpu, u64 *ts) | |||
2590 | spin_lock(&cpu_buffer->reader_lock); | 2591 | spin_lock(&cpu_buffer->reader_lock); |
2591 | 2592 | ||
2592 | event = rb_buffer_peek(buffer, cpu, ts); | 2593 | event = rb_buffer_peek(buffer, cpu, ts); |
2593 | if (!event) | 2594 | if (event) |
2594 | goto out_unlock; | 2595 | rb_advance_reader(cpu_buffer); |
2595 | |||
2596 | rb_advance_reader(cpu_buffer); | ||
2597 | 2596 | ||
2598 | out_unlock: | ||
2599 | if (dolock) | 2597 | if (dolock) |
2600 | spin_unlock(&cpu_buffer->reader_lock); | 2598 | spin_unlock(&cpu_buffer->reader_lock); |
2601 | local_irq_restore(flags); | 2599 | local_irq_restore(flags); |