commit d7fbf8df7ca0a5c7e85db79f7005f99cb461c525
author Steven Rostedt (VMware) <rostedt@goodmis.org> Mon Jun 26 10:57:21 2017 -0400
committer Steven Rostedt (VMware) <rostedt@goodmis.org> Mon Jun 26 11:53:03 2017 -0400
tree 71911a278dd6da98089642b255384b9ded6345a1
parent 5985ea8bd5d1b820b909af49fbc2767a990080a6

ftrace: Implement cached modules tracing on module load

If a module is cached in the set_ftrace_filter, and that module is loaded,
then enable tracing on that module as if the cached module text was written
into set_ftrace_filter just as the module is loaded.

  # echo ":mod:kvm_intel" >
  # cat /sys/kernel/tracing/set_ftrace_filter
 #### all functions enabled ####
 :mod:kvm_intel
  # modprobe kvm_intel
  # cat /sys/kernel/tracing/set_ftrace_filter
 vmx_get_rflags [kvm_intel]
 vmx_get_pkru [kvm_intel]
 vmx_get_interrupt_shadow [kvm_intel]
 vmx_rdtscp_supported [kvm_intel]
 vmx_invpcid_supported [kvm_intel]
 [..]

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>