bpf: Fix sample_flags for bpf_perf_event_output
authorSumanth Korikkar <sumanthk@linux.ibm.com>
Fri, 7 Oct 2022 08:13:27 +0000 (10:13 +0200)
committerPeter Zijlstra <peterz@infradead.org>
Mon, 17 Oct 2022 14:32:06 +0000 (16:32 +0200)
commit21da7472a040420f2dc624ffec70291a72c5d6a6
tree7e537657d30972aba8a9cecc7e5fe69ba44d7f1d
parent23488ec66867f7e673b694623a951fb583e464a7
bpf: Fix sample_flags for bpf_perf_event_output

* Raw data is also filled by bpf_perf_event_output.
* Add sample_flags to indicate raw data.
* This eliminates the segfaults as shown below:
  Run ./samples/bpf/trace_output
  BUG pid 9 cookie 1001000000004 sized 4
  BUG pid 9 cookie 1001000000004 sized 4
  BUG pid 9 cookie 1001000000004 sized 4
  Segmentation fault (core dumped)

Fixes: 838d9bb62d13 ("perf: Use sample_flags for raw_data")
Signed-off-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/r/20221007081327.1047552-1-sumanthk@linux.ibm.com
kernel/trace/bpf_trace.c