tree 224ffcb5af7fa6d63fc1e25abd718e59667b14f8
parent e28e87ed474c5a0b378c66fb85efc8e487f4f63f
author Alexei Starovoitov <ast@fb.com> 1457478472 -0800
committer David S. Miller <davem@davemloft.net> 1457497322 -0500

samples/bpf: add bpf map stress test

this test calls bpf programs from different contexts:
from inside of slub, from rcu, from pretty much everywhere,
since it kprobes all spin_lock functions.
It stresses the bpf hash and percpu map pre-allocation,
deallocation logic and call_rcu mechanisms.
User space part adding more stress by walking and deleting map elements.

Note that due to nature bpf_load.c the earlier kprobe+bpf programs are
already active while loader loads new programs, creates new kprobes and
attaches them.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>