diff options
| author |   Joe Burton <jevburton@google.com> | 2021-10-26 22:35:28 +0000 |
|---|---|---|
| committer |   Andrii Nakryiko <andrii@kernel.org> | 2021-10-27 11:00:12 -0700 |
| commit | 689624f037ce219d42312534eff4dc470b54dec4 (patch) | |
| tree | 9b411fd28927651dbdd6ca144d8b8d410ab560c6 /tools/lib/bpf/libbpf.h | |
| parent | selftests/bpf: Guess function end for test_get_branch_snapshot (diff) | |
| download | linux-dev-689624f037ce219d42312534eff4dc470b54dec4.tar.xz linux-dev-689624f037ce219d42312534eff4dc470b54dec4.zip | |
libbpf: Deprecate bpf_objects_list
Add a flag to `enum libbpf_strict_mode' to disable the global
`bpf_objects_list', preventing race conditions when concurrent threads
call bpf_object__open() or bpf_object__close().
bpf_object__next() will return NULL if this option is set.
Callers may achieve the same workflow by tracking bpf_objects in
application code.
[0] Closes: https://github.com/libbpf/libbpf/issues/293
Signed-off-by: Joe Burton <jevburton@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211026223528.413950-1-jevburton.kernel@gmail.com
Diffstat (limited to 'tools/lib/bpf/libbpf.h')
| -rw-r--r-- | tools/lib/bpf/libbpf.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h index e1900819bfab..defabdbe7760 100644 --- a/tools/lib/bpf/libbpf.h +++ b/tools/lib/bpf/libbpf.h @@ -168,7 +168,8 @@ LIBBPF_API struct bpf_program * bpf_object__find_program_by_name(const struct bpf_object *obj, const char *name); -LIBBPF_API struct bpf_object *bpf_object__next(struct bpf_object *prev); +LIBBPF_API LIBBPF_DEPRECATED_SINCE(0, 7, "track bpf_objects in application code instead") +struct bpf_object *bpf_object__next(struct bpf_object *prev); #define bpf_object__for_each_safe(pos, tmp) \ for ((pos) = bpf_object__next(NULL), \ (tmp) = bpf_object__next(pos); \ |