bpf: expose program stats via bpf_prog_info

Return bpf program run_time_ns and run_cnt via bpf_prog_info

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

1 files changed, 5 insertions, 0 deletions

diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 31cf66fc3f5c..174581dfe225 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -2152,6 +2152,7 @@ static int bpf_prog_get_info_by_fd(struct bpf_prog *prog,
         struct bpf_prog_info __user *uinfo = u64_to_user_ptr(attr->info.info);
         struct bpf_prog_info info = {};
         u32 info_len = attr->info.info_len;
+        struct bpf_prog_stats stats;
         char __user *uinsns;
         u32 ulen;
         int err;
@@ -2191,6 +2192,10 @@ static int bpf_prog_get_info_by_fd(struct bpf_prog *prog,
         if (err)
                 return err;
 
+        bpf_prog_get_stats(prog, &stats);
+        info.run_time_ns = stats.nsecs;
+        info.run_cnt = stats.cnt;
+
         if (!capable(CAP_SYS_ADMIN)) {
                 info.jited_prog_len = 0;
                 info.xlated_prog_len = 0;