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-rw-r--r--include/uapi/linux/bpf.h1
-rw-r--r--kernel/trace/bpf_trace.c1
-rw-r--r--tools/include/uapi/linux/bpf.h1
3 files changed, 3 insertions, 0 deletions
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 5f13db15a3c7..1da5b1bcce71 100644
--- a/include/uapi/linux/bpf.h
+++ b/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 */
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c
index 54827d04c9a6..6aec6e7d612a 100644
--- a/kernel/trace/bpf_trace.c
+++ b/kernel/trace/bpf_trace.c
@@ -2614,6 +2614,7 @@ static int bpf_kprobe_multi_link_fill_link_info(const struct bpf_link *link,
kmulti_link = container_of(link, struct bpf_kprobe_multi_link, link);
info->kprobe_multi.count = kmulti_link->cnt;
info->kprobe_multi.flags = kmulti_link->flags;
+ info->kprobe_multi.missed = kmulti_link->fp.nmissed;
if (!uaddrs)
return 0;
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 */