On Fri, 2022-10-07 at 12:59 +0200, Jiri Olsa wrote: > On Thu, Oct 06, 2022 at 01:07:30PM +0200, Roberto Sassu wrote: > > From: Roberto Sassu <roberto.sassu@xxxxxxxxxx> > > > > Add the _opts variant for bpf_*_get_fd_by_id() functions, to be > > able to > > pass to the kernel more options, when requesting a fd of an eBPF > > object. > > > > Pass the options through a newly introduced structure, > > bpf_get_fd_by_id_opts, which currently contains open_flags (the > > other two > > members are for compatibility and for padding). > > > > open_flags allows the caller to request specific permissions to > > access a > > map (e.g. read-only). This is useful for example in the situation > > where a > > map is write-protected. > > > > Besides patches 2-6, which introduce the new variants and the data > > structure, patch 1 fixes the LIBBPF_1.0.0 declaration in > > libbpf.map. > > > > Changelog > > > > v1: > > - Don't CC stable kernel mailing list for patch 1 (suggested by > > Andrii) > > - Rename bpf_get_fd_opts struct to bpf_get_fd_by_id_opts > > (suggested by > > Andrii) > > - Move declaration of _opts variants after non-opts variants > > (suggested by > > Andrii) > > - Correctly initialize bpf_map_info, fix style issues, use map > > from > > skeleton, check valid fd in the test (suggested by Andrii) > > - Rename libbpf_get_fd_opts test to libbpf_get_fd_by_id_opts > > > > Roberto Sassu (6): > > libbpf: Fix LIBBPF_1.0.0 declaration in libbpf.map > > libbpf: Introduce bpf_get_fd_by_id_opts and > > bpf_map_get_fd_by_id_opts() > > libbpf: Introduce bpf_prog_get_fd_by_id_opts() > > libbpf: Introduce bpf_btf_get_fd_by_id_opts() > > libbpf: Introduce bpf_link_get_fd_by_id_opts() > > selftests/bpf: Add tests for _opts variants of > > bpf_*_get_fd_by_id() > > it's not marked, but I'm assuming this goes to bpf-next, right? At the next possible chance would be perfect. > anyway, lgtm > > Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx> Thanks Roberto > thanks, > jirka > > > tools/lib/bpf/bpf.c | 48 +++++++++- > > tools/lib/bpf/bpf.h | 16 ++++ > > tools/lib/bpf/libbpf.map | 6 +- > > tools/testing/selftests/bpf/DENYLIST.s390x | 1 + > > .../bpf/prog_tests/libbpf_get_fd_by_id_opts.c | 87 > > +++++++++++++++++++ > > .../bpf/progs/test_libbpf_get_fd_by_id_opts.c | 36 ++++++++ > > 6 files changed, 189 insertions(+), 5 deletions(-) > > create mode 100644 > > tools/testing/selftests/bpf/prog_tests/libbpf_get_fd_by_id_opts.c > > create mode 100644 > > tools/testing/selftests/bpf/progs/test_libbpf_get_fd_by_id_opts.c > > > > -- > > 2.25.1 > >
