1. About v3-0001-tracing-Remove-unnecessary-hist_data-destroy-in-d.patch:
The reason I write the changelog by myself is that no one found the bug at that time, then later the code was removed on upstream, but 4.19-stable has the bug.
2. About v3-0002-tracing-Remove-unnecessary-var-destroy-in-onmax_d.patch
I also write the changelog by myself is that the upstream api is changed. refs commits: 466f4528fbc6 ("tracing: Generalize hist trigger onmax and save action") ff9d31d0d466 ("tracing: Remove unnecessary var_ref destroy in track_data_destroy()")
George Guo (2): tracing: Remove unnecessary hist_data destroy in destroy_synth_var_refs() tracing: Remove unnecessary var destroy in onmax_destroy()
kernel/trace/trace_events_hist.c | 27 ++------------------------- 1 file changed, 2 insertions(+), 25 deletions(-)