diff options
| -rw-r--r-- | kernel/trace/trace.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 04ab8243a13..62a63b2b33d 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -2948,10 +2948,18 @@ tracing_entries_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *ppos) { struct trace_array *tr = filp->private_data; - char buf[64]; + char buf[96]; int r; - r = sprintf(buf, "%lu\n", tr->entries >> 10); + mutex_lock(&trace_types_lock); + if (!ring_buffer_expanded) + r = sprintf(buf, "%lu (expanded: %lu)\n", + tr->entries >> 10, + trace_buf_size >> 10); + else + r = sprintf(buf, "%lu\n", tr->entries >> 10); + mutex_unlock(&trace_types_lock); + return simple_read_from_buffer(ubuf, cnt, ppos, buf, r); } |