[PATCH v2 net-next 0/3] bpf: share helpers between tracing and networking

v1->v2: switched to init_user_ns from current_user_ns as suggested by Andy

Introduce new helpers to access 'struct task_struct'->pid, tgid, uid, gid, comm
fields in tracing and networking.

Share bpf_trace_printk() and bpf_get_smp_processor_id() helpers between
tracing and networking.

Alexei Starovoitov (3):
  bpf: introduce current->pid, tgid, uid, gid, comm accessors
  bpf: allow networking programs to use bpf_trace_printk() for
    debugging
  bpf: let kprobe programs use bpf_get_smp_processor_id() helper

 include/linux/bpf.h        |    4 +++
 include/uapi/linux/bpf.h   |   19 +++++++++++++
 kernel/bpf/core.c          |    7 +++++
 kernel/bpf/helpers.c       |   58 ++++++++++++++++++++++++++++++++++++++
 kernel/trace/bpf_trace.c   |   28 ++++++++++++------
 net/core/filter.c          |    8 ++++++
 samples/bpf/bpf_helpers.h  |    6 ++++
 samples/bpf/tracex2_kern.c |   24 ++++++++++++----
 samples/bpf/tracex2_user.c |   67 ++++++++++++++++++++++++++++++++++++++------
 9 files changed, 199 insertions(+), 22 deletions(-)

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1.7.9.5