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| author | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2008-12-05 15:27:43 +1100 |
|---|---|---|
| committer | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2008-12-05 15:27:43 +1100 |
| commit | 14d676f56fad26fd3c31eeff5d4ef8ea4a163571 (patch) | |
| tree | 5e740c5931daecf44a6e74c230f2deb291290f4b /kernel/trace/trace_mmiotrace.c | |
| parent | 797eaed40e1df4a3b9ece6894a71ce2b568bca38 (diff) | |
| parent | feaf3848a813a106f163013af6fcf6c4bfec92d9 (diff) | |
| download | op-kernel-dev-14d676f56fad26fd3c31eeff5d4ef8ea4a163571.zip op-kernel-dev-14d676f56fad26fd3c31eeff5d4ef8ea4a163571.tar.gz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'kernel/trace/trace_mmiotrace.c')
| -rw-r--r-- | kernel/trace/trace_mmiotrace.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c index f284846..e62cbf7 100644 --- a/kernel/trace/trace_mmiotrace.c +++ b/kernel/trace/trace_mmiotrace.c @@ -18,12 +18,14 @@ struct header_iter { static struct trace_array *mmio_trace_array; static bool overrun_detected; +static unsigned long prev_overruns; static void mmio_reset_data(struct trace_array *tr) { int cpu; overrun_detected = false; + prev_overruns = 0; tr->time_start = ftrace_now(tr->cpu); for_each_online_cpu(cpu) @@ -128,16 +130,12 @@ static void mmio_close(struct trace_iterator *iter) static unsigned long count_overruns(struct trace_iterator *iter) { - int cpu; unsigned long cnt = 0; -/* FIXME: */ -#if 0 - for_each_online_cpu(cpu) { - cnt += iter->overrun[cpu]; - iter->overrun[cpu] = 0; - } -#endif - (void)cpu; + unsigned long over = ring_buffer_overruns(iter->tr->buffer); + + if (over > prev_overruns) + cnt = over - prev_overruns; + prev_overruns = over; return cnt; } |
