diff options
| author | James Morris <jmorris@namei.org> | 2008-12-04 17:16:36 +1100 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2008-12-04 17:16:36 +1100 |
| commit | ec98ce480ada787f2cfbd696980ff3564415505b (patch) | |
| tree | 1a4d644b38f9f1e4b4e086fde0b195df4a92cf84 /kernel/trace/trace_mmiotrace.c | |
| parent | 3496f92beb9aa99ef21fccc154a36c7698e9c538 (diff) | |
| parent | feaf3848a813a106f163013af6fcf6c4bfec92d9 (diff) | |
Merge branch 'master' into next
Conflicts:
fs/nfsd/nfs4recover.c
Manually fixed above to use new creds API functions, e.g.
nfs4_save_creds().
Signed-off-by: James Morris <jmorris@namei.org>
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 f28484618ff0..e62cbf78eab6 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; } |