> On Nov 16, 2018, at 3:41 AM, Lorenz Bauer <lmb@xxxxxxxxxxxxxx> wrote: > > Allow forcing the seed of a hash table to zero, for deterministic > execution during benchmarking and testing. > > Changes from v2: > * Change ordering of BPF_F_ZERO_SEED in linux/bpf.h > > Comments adressed from v1: > * Add comment to discourage production use to linux/bpf.h > * Require CAP_SYS_ADMIN > > Lorenz Bauer (4): > bpf: allow zero-initializing hash map seed > bpf: move BPF_F_QUERY_EFFECTIVE after map flags > tools: sync linux/bpf.h > tools: add selftest for BPF_F_ZERO_SEED > > include/uapi/linux/bpf.h | 9 ++-- > kernel/bpf/hashtab.c | 13 ++++- > tools/include/uapi/linux/bpf.h | 13 +++-- > tools/testing/selftests/bpf/test_maps.c | 68 +++++++++++++++++++++---- > 4 files changed, 84 insertions(+), 19 deletions(-) > > -- > 2.17.1 >
