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authorJoe Burton <jevburton@google.com>2021-10-27 01:35:28 +0300
committerAndrii Nakryiko <andrii@kernel.org>2021-10-27 21:00:12 +0300
commit689624f037ce219d42312534eff4dc470b54dec4 (patch)
tree9b411fd28927651dbdd6ca144d8b8d410ab560c6 /tools/lib/bpf/libbpf.h
parent20d1b54a52bd9a1d5d23a45dab75993ce2f1d617 (diff)
downloadlinux-689624f037ce219d42312534eff4dc470b54dec4.tar.xz
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.h3
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); \