Last year the commit afd20b9290e1 ("af_unix: Replace the big lock with
small locks.") landed on bpf-next. Now we can use a batching algorithm
for AF_UNIX bpf iter as TCP bpf iter.
Changelog:
- Add the 1st patch.
- Call unix_get_first() in .start()/.next() to always acquire a lock in
each iteration in the 2nd patch.
Kuniyuki Iwashima (5):
af_unix: Refactor unix_next_socket().
bpf: af_unix: Use batching algorithm in bpf unix iter.
bpf: Support bpf_(get|set)sockopt() in bpf unix iter.
selftest/bpf: Test batching and bpf_(get|set)sockopt in bpf unix iter.
selftest/bpf: Fix a stale comment.
net/unix/af_unix.c | 250 ++++++++++++++++--
.../bpf/prog_tests/bpf_iter_setsockopt_unix.c | 100 +++++++
.../bpf/progs/bpf_iter_setsockopt_unix.c | 60 +++++
.../selftests/bpf/progs/bpf_iter_unix.c | 2 +-
.../selftests/bpf/progs/bpf_tracing_net.h | 2 +
5 files changed, 385 insertions(+), 29 deletions(-)
create mode 100644 tools/testing/selftests/bpf/prog_tests/bpf_iter_setsockopt_unix.c
create mode 100644 tools/testing/selftests/bpf/progs/bpf_iter_setsockopt_unix.c
--
2.30.2
