This is version 2 of the patches to make tracing event triggers affect the correct instance rather than always the top-level instance. The sum of these patches is identical to version 1, but this version fixes an error in patch #1 that the kbuild test robot found.
Original Description: Although all of the trace event triggers can be used in instances, most of them affect the top-level instance even when triggered from within an instance. This patch set makes them affect the instance in which the trigger occurred. The enable_event & disable_event triggers already work within the correct instance, so these are unchanged. The same problem also exists with the function probe triggers, but they will be fixed in a later patch set. Patch 1 is preparatory. Patch 2 fixes the stacktrace event trigger Patch 3 fixes the traceon & traceoff event triggers Patch 4 fixes the snapshot event trigger Patch 5 Makes related warning messages also go to the correct instance kernel/trace/trace.c | 96 +++++++++++++++++++++++++------------ kernel/trace/trace.h | 14 +++++- kernel/trace/trace_events_trigger.c | 62 ++++++++++++++---------- 3 files changed, 113 insertions(+), 59 deletions(-)

