diff options
Diffstat (limited to 'drivers/oprofile/cpu_buffer.c')
| -rw-r--r-- | drivers/oprofile/cpu_buffer.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c index 934ff159e70e..400f7fcffdbe 100644 --- a/drivers/oprofile/cpu_buffer.c +++ b/drivers/oprofile/cpu_buffer.c @@ -182,20 +182,28 @@ int op_cpu_buffer_write_commit(struct op_entry *entry) entry->irq_flags); } -struct op_sample *op_cpu_buffer_read_entry(int cpu) +struct op_sample *op_cpu_buffer_read_entry(struct op_entry *entry, int cpu) { struct ring_buffer_event *e; e = ring_buffer_consume(op_ring_buffer_read, cpu, NULL); if (e) - return ring_buffer_event_data(e); + goto event; if (ring_buffer_swap_cpu(op_ring_buffer_read, op_ring_buffer_write, cpu)) return NULL; e = ring_buffer_consume(op_ring_buffer_read, cpu, NULL); if (e) - return ring_buffer_event_data(e); + goto event; return NULL; + +event: + entry->event = e; + entry->sample = ring_buffer_event_data(e); + entry->size = (ring_buffer_event_length(e) - sizeof(struct op_sample)) + / sizeof(entry->sample->data[0]); + entry->data = entry->sample->data; + return entry->sample; } unsigned long op_cpu_buffer_entries(int cpu) |