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| author | Peter Zijlstra <peterz@infradead.org> | 2017-10-11 09:45:29 +0200 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2017-10-16 18:11:02 -0400 |
| commit | 8fd0fbbe8888f295eb34172a7e47bf7d3a0a4687 (patch) | |
| tree | 86e13d1e79b9c407f4d142f12ea43fc1b008f617 /kernel/trace/trace_event_perf.c | |
| parent | 136412474b77c14a26e018a7f2c1e5fcee700d3d (diff) | |
| download | linux-stable-8fd0fbbe8888f295eb34172a7e47bf7d3a0a4687.tar.gz linux-stable-8fd0fbbe8888f295eb34172a7e47bf7d3a0a4687.tar.bz2 linux-stable-8fd0fbbe8888f295eb34172a7e47bf7d3a0a4687.zip | |
perf/ftrace: Revert ("perf/ftrace: Fix double traces of perf on ftrace:function")
Revert commit:
75e8387685f6 ("perf/ftrace: Fix double traces of perf on ftrace:function")
The reason I instantly stumbled on that patch is that it only addresses the
ftrace situation and doesn't mention the other _5_ places that use this
interface. It doesn't explain why those don't have the problem and if not, why
their solution doesn't work for ftrace.
It doesn't, but this is just putting more duct tape on.
Link: http://lkml.kernel.org/r/20171011080224.200565770@infradead.org
Cc: Zhou Chengming <zhouchengming1@huawei.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_event_perf.c')
| -rw-r--r-- | kernel/trace/trace_event_perf.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/kernel/trace/trace_event_perf.c b/kernel/trace/trace_event_perf.c index 13ba2d3f6a91..562fa69df5d3 100644 --- a/kernel/trace/trace_event_perf.c +++ b/kernel/trace/trace_event_perf.c @@ -306,7 +306,6 @@ static void perf_ftrace_function_call(unsigned long ip, unsigned long parent_ip, struct ftrace_ops *ops, struct pt_regs *pt_regs) { - struct perf_event *event; struct ftrace_entry *entry; struct hlist_head *head; struct pt_regs regs; @@ -330,9 +329,8 @@ perf_ftrace_function_call(unsigned long ip, unsigned long parent_ip, entry->ip = ip; entry->parent_ip = parent_ip; - event = container_of(ops, struct perf_event, ftrace_ops); perf_trace_buf_submit(entry, ENTRY_SIZE, rctx, TRACE_FN, - 1, ®s, head, NULL, event); + 1, ®s, head, NULL); #undef ENTRY_SIZE } |