diff options
| author | Alex Shi <alex.shi@linaro.org> | 2017-01-10 12:01:14 +0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2017-01-10 12:01:14 +0800 |
| commit | 7785301d9209cf083369c6f088cd1d48ec417863 (patch) | |
| tree | 693ad3a1ebdc818a37abebbd8257820604ea8a35 /kernel | |
| parent | 19192a140ad72b5bd0d57620bfe236bc03561bb6 (diff) | |
| parent | f02e043c5ee3014ba0fbae38e699008385c99d7b (diff) | |
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/time/timekeeping.c | 4 | ||||
| -rw-r--r-- | kernel/trace/trace_functions_graph.c | 17 |
2 files changed, 16 insertions, 5 deletions
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index ede4bf13d3e9..5fa544f3f560 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -298,10 +298,10 @@ u32 (*arch_gettimeoffset)(void) = default_arch_gettimeoffset; static inline u32 arch_gettimeoffset(void) { return 0; } #endif -static inline s64 timekeeping_delta_to_ns(struct tk_read_base *tkr, +static inline u64 timekeeping_delta_to_ns(struct tk_read_base *tkr, cycle_t delta) { - s64 nsec; + u64 nsec; nsec = delta * tkr->mult + tkr->xtime_nsec; nsec >>= tkr->shift; diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c index 4641bdb40f8f..96c75b0e9831 100644 --- a/kernel/trace/trace_functions_graph.c +++ b/kernel/trace/trace_functions_graph.c @@ -785,6 +785,10 @@ print_graph_entry_leaf(struct trace_iterator *iter, cpu_data = per_cpu_ptr(data->cpu_data, cpu); + /* If a graph tracer ignored set_graph_notrace */ + if (call->depth < -1) + call->depth += FTRACE_NOTRACE_DEPTH; + /* * Comments display at + 1 to depth. Since * this is a leaf function, keep the comments @@ -793,7 +797,8 @@ print_graph_entry_leaf(struct trace_iterator *iter, cpu_data->depth = call->depth - 1; /* No need to keep this function around for this depth */ - if (call->depth < FTRACE_RETFUNC_DEPTH) + if (call->depth < FTRACE_RETFUNC_DEPTH && + !WARN_ON_ONCE(call->depth < 0)) cpu_data->enter_funcs[call->depth] = 0; } @@ -823,11 +828,16 @@ print_graph_entry_nested(struct trace_iterator *iter, struct fgraph_cpu_data *cpu_data; int cpu = iter->cpu; + /* If a graph tracer ignored set_graph_notrace */ + if (call->depth < -1) + call->depth += FTRACE_NOTRACE_DEPTH; + cpu_data = per_cpu_ptr(data->cpu_data, cpu); cpu_data->depth = call->depth; /* Save this function pointer to see if the exit matches */ - if (call->depth < FTRACE_RETFUNC_DEPTH) + if (call->depth < FTRACE_RETFUNC_DEPTH && + !WARN_ON_ONCE(call->depth < 0)) cpu_data->enter_funcs[call->depth] = call->func; } @@ -1057,7 +1067,8 @@ print_graph_return(struct ftrace_graph_ret *trace, struct trace_seq *s, */ cpu_data->depth = trace->depth - 1; - if (trace->depth < FTRACE_RETFUNC_DEPTH) { + if (trace->depth < FTRACE_RETFUNC_DEPTH && + !WARN_ON_ONCE(trace->depth < 0)) { if (cpu_data->enter_funcs[trace->depth] != trace->func) func_match = 0; cpu_data->enter_funcs[trace->depth] = 0; |