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Date: Sat, 25 May 2019 09:57:59 -0700 From: Cong Wang <xiyou.wangcong@...il.com> To: linux-kernel@...r.kernel.org Cc: Cong Wang <xiyou.wangcong@...il.com>, Steven Rostedt <rostedt@...dmis.org>, Ingo Molnar <mingo@...hat.com> Subject: [PATCH 1/4] trace: fold type initialization into tracing_generic_entry_update() All callers of tracing_generic_entry_update() have to initialize entry->type, so let's just simply move it inside. Cc: Steven Rostedt <rostedt@...dmis.org> Cc: Ingo Molnar <mingo@...hat.com> Signed-off-by: Cong Wang <xiyou.wangcong@...il.com> --- include/linux/trace_events.h | 1 + kernel/trace/trace.c | 8 ++++---- kernel/trace/trace_event_perf.c | 3 +-- 3 files changed, 6 insertions(+), 6 deletions(-) diff --git a/include/linux/trace_events.h b/include/linux/trace_events.h index 8a62731673f7..5c6f2a6c8cd2 100644 --- a/include/linux/trace_events.h +++ b/include/linux/trace_events.h @@ -142,6 +142,7 @@ enum print_line_t { enum print_line_t trace_handle_return(struct trace_seq *s); void tracing_generic_entry_update(struct trace_entry *entry, + unsigned short type, unsigned long flags, int pc); struct trace_event_file; diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 2c92b3d9ea30..0e0e0e726170 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -743,8 +743,7 @@ trace_event_setup(struct ring_buffer_event *event, { struct trace_entry *ent = ring_buffer_event_data(event); - tracing_generic_entry_update(ent, flags, pc); - ent->type = type; + tracing_generic_entry_update(ent, type, flags, pc); } static __always_inline struct ring_buffer_event * @@ -2312,13 +2311,14 @@ enum print_line_t trace_handle_return(struct trace_seq *s) EXPORT_SYMBOL_GPL(trace_handle_return); void -tracing_generic_entry_update(struct trace_entry *entry, unsigned long flags, - int pc) +tracing_generic_entry_update(struct trace_entry *entry, unsigned short type, + unsigned long flags, int pc) { struct task_struct *tsk = current; entry->preempt_count = pc & 0xff; entry->pid = (tsk) ? tsk->pid : 0; + entry->type = type; entry->flags = #ifdef CONFIG_TRACE_IRQFLAGS_SUPPORT (irqs_disabled_flags(flags) ? TRACE_FLAG_IRQS_OFF : 0) | diff --git a/kernel/trace/trace_event_perf.c b/kernel/trace/trace_event_perf.c index 4629a6104474..0892e38ed6fb 100644 --- a/kernel/trace/trace_event_perf.c +++ b/kernel/trace/trace_event_perf.c @@ -416,8 +416,7 @@ void perf_trace_buf_update(void *record, u16 type) unsigned long flags; local_save_flags(flags); - tracing_generic_entry_update(entry, flags, pc); - entry->type = type; + tracing_generic_entry_update(entry, type, flags, pc); } NOKPROBE_SYMBOL(perf_trace_buf_update); -- 2.21.0
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