diff options
Diffstat (limited to 'kernel/trace/ring_buffer.c')
| -rw-r--r-- | kernel/trace/ring_buffer.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index c8ce6bde7fa4..3af77cd47f21 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c | |||
| @@ -2008,14 +2008,14 @@ rb_try_to_discard(struct ring_buffer_per_cpu *cpu_buffer, | |||
| 2008 | 2008 | ||
| 2009 | static int | 2009 | static int |
| 2010 | rb_add_time_stamp(struct ring_buffer_per_cpu *cpu_buffer, | 2010 | rb_add_time_stamp(struct ring_buffer_per_cpu *cpu_buffer, |
| 2011 | u64 ts, u64 *delta) | 2011 | u64 ts, u64 delta) |
| 2012 | { | 2012 | { |
| 2013 | struct ring_buffer_event *event; | 2013 | struct ring_buffer_event *event; |
| 2014 | int ret; | 2014 | int ret; |
| 2015 | 2015 | ||
| 2016 | WARN_ONCE(*delta > (1ULL << 59), | 2016 | WARN_ONCE(delta > (1ULL << 59), |
| 2017 | KERN_WARNING "Delta way too big! %llu ts=%llu write stamp = %llu\n", | 2017 | KERN_WARNING "Delta way too big! %llu ts=%llu write stamp = %llu\n", |
| 2018 | (unsigned long long)*delta, | 2018 | (unsigned long long)delta, |
| 2019 | (unsigned long long)ts, | 2019 | (unsigned long long)ts, |
| 2020 | (unsigned long long)cpu_buffer->write_stamp); | 2020 | (unsigned long long)cpu_buffer->write_stamp); |
| 2021 | 2021 | ||
| @@ -2041,8 +2041,8 @@ rb_add_time_stamp(struct ring_buffer_per_cpu *cpu_buffer, | |||
| 2041 | * and if we can't just make it zero. | 2041 | * and if we can't just make it zero. |
| 2042 | */ | 2042 | */ |
| 2043 | if (rb_event_index(event)) { | 2043 | if (rb_event_index(event)) { |
| 2044 | event->time_delta = *delta & TS_MASK; | 2044 | event->time_delta = delta & TS_MASK; |
| 2045 | event->array[0] = *delta >> TS_SHIFT; | 2045 | event->array[0] = delta >> TS_SHIFT; |
| 2046 | } else { | 2046 | } else { |
| 2047 | /* try to discard, since we do not need this */ | 2047 | /* try to discard, since we do not need this */ |
| 2048 | if (!rb_try_to_discard(cpu_buffer, event)) { | 2048 | if (!rb_try_to_discard(cpu_buffer, event)) { |
| @@ -2064,8 +2064,6 @@ rb_add_time_stamp(struct ring_buffer_per_cpu *cpu_buffer, | |||
| 2064 | ret = 0; | 2064 | ret = 0; |
| 2065 | } | 2065 | } |
| 2066 | 2066 | ||
| 2067 | *delta = 0; | ||
| 2068 | |||
| 2069 | return ret; | 2067 | return ret; |
| 2070 | } | 2068 | } |
| 2071 | 2069 | ||
| @@ -2175,7 +2173,9 @@ rb_reserve_next_event(struct ring_buffer *buffer, | |||
| 2175 | delta = diff; | 2173 | delta = diff; |
| 2176 | if (unlikely(test_time_stamp(delta))) { | 2174 | if (unlikely(test_time_stamp(delta))) { |
| 2177 | 2175 | ||
| 2178 | commit = rb_add_time_stamp(cpu_buffer, ts, &delta); | 2176 | commit = rb_add_time_stamp(cpu_buffer, ts, delta); |
| 2177 | delta = 0; | ||
| 2178 | |||
| 2179 | if (commit == -EBUSY) | 2179 | if (commit == -EBUSY) |
| 2180 | goto out_fail; | 2180 | goto out_fail; |
| 2181 | 2181 | ||
