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authorJiri Olsa <jolsa@kernel.org>2023-09-20 23:31:38 +0200
committerAndrii Nakryiko <andrii@kernel.org>2023-09-25 16:37:44 -0700
commite2b2cd592adbd303bcc02451d32fedd511000fb0 (patch)
treef42133fb3f63dfa0325adc525cd03c5e9c01ccd1 /tools/include
parentf915fcb38553eb9150a918348d932fd292de71dc (diff)
bpf: Add missed value to kprobe_multi link info
Add missed value to kprobe_multi link info to hold the stats of missed kprobe_multi probe. The missed counter gets incremented when fprobe fails the recursion check or there's no rethook available for return probe. In either case the attached bpf program is not executed. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Tested-by: Song Liu <song@kernel.org> Reviewed-by: Song Liu <song@kernel.org> Acked-by: Hou Tao <houtao1@huawei.com> Link: https://lore.kernel.org/bpf/20230920213145.1941596-3-jolsa@kernel.org
Diffstat (limited to 'tools/include')
-rw-r--r--tools/include/uapi/linux/bpf.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 5f13db15a3c7..1da5b1bcce71 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -6532,6 +6532,7 @@ struct bpf_link_info {
__aligned_u64 addrs;
__u32 count; /* in/out: kprobe_multi function count */
__u32 flags;
+ __u64 missed;
} kprobe_multi;
struct {
__u32 type; /* enum bpf_perf_event_type */