In addition to patches introduced by commit f45d1225adb0 "tracing: Kernel access to Ftrace instances") we also need the following patches to reliably access ftrace instances from other kernel modules or components.
This version addresses the review comments/suggestions received for v3. Please review the patches that follow. Divya Indi (5): tracing: Declare newly exported APIs in include/linux/trace.h tracing: Verify if trace array exists before destroying it. tracing: Adding NULL checks tracing: Handle the trace array ref counter in new functions tracing: New functions for kernel access to Ftrace instances include/linux/trace.h | 10 +++++ include/linux/trace_events.h | 3 +- kernel/trace/trace.c | 88 ++++++++++++++++++++++++++++++++++++++++++-- kernel/trace/trace.h | 4 +- kernel/trace/trace_events.c | 25 ++++++++++++- 5 files changed, 121 insertions(+), 9 deletions(-) -- 1.8.3.1
