Revert "propagate current"

This reverts commit 04126c7.

bpf/go_common.h

@@ -33,7 +33,7 @@ char __license[] SEC("license") = "Dual MIT/GPL";
 // attributes (method, path, and status code).
 
 typedef struct goroutine_key {
-    u32 pid;  // PID of the process
+    u64 pid;  // PID of the process
     u64 addr; // Address of the goroutine
 } goroutine_key_t;
 
@@ -87,19 +87,17 @@ static __always_inline u64 find_parent_goroutine(goroutine_key_t *current) {
     }
 
     u64 r_addr = current->addr;
-    goroutine_key_t *parent = current;
 
     int attempts = 0;
     do {
         tp_info_t *p_inv = bpf_map_lookup_elem(&go_trace_map, &r_addr);
         if (!p_inv) { // not this goroutine running the server request processing
             // Let's find the parent scope
             goroutine_metadata *g_metadata =
-                (goroutine_metadata *)bpf_map_lookup_elem(&ongoing_goroutines, parent);
+                (goroutine_metadata *)bpf_map_lookup_elem(&ongoing_goroutines, current);
             if (g_metadata) {
                 // Lookup now to see if the parent was a request
                 r_addr = (u64)g_metadata->parent.addr;
-                parent = &g_metadata->parent;
             } else {
                 break;
             }

bpf/go_runtime.h

@@ -66,11 +66,10 @@ int uprobe_proc_newproc1_ret(struct pt_regs *ctx) {
     u32 pid = pid_from_pid_tgid(pid_tid);
 
     goroutine_key_t g_key = {.addr = (u64)goroutine_addr, .pid = pid};
-    goroutine_key_t p_key = {.addr = (u64)parent_goroutine, .pid = pid};
 
     goroutine_metadata metadata = {
         .timestamp = bpf_ktime_get_ns(),
-        .parent = p_key,
+        .parent = {.addr = (u64)parent_goroutine, .pid = pid},
     };
 
     if (bpf_map_update_elem(&ongoing_goroutines, &g_key, &metadata, BPF_ANY)) {