add a temporary bandaid for vmod_re

@bsdphk to be discussed / replaced

bin/varnishd/cache/cache.h

@@ -731,6 +731,7 @@ extern const char H__Reason[];
 #define VXID(u) ((u) & VSL_IDENTMASK)
 uint32_t VXID_Get(struct worker *, uint32_t marker);
 extern volatile struct params * cache_param;
+extern volatile struct vre_limits *vparam_vre_limits;
 extern pthread_key_t witness_key;
 
 /* cache_lck.c */

bin/varnishd/cache/cache_main.c

@@ -49,7 +49,9 @@
 #include "hash/hash_slinger.h"
 
 
-volatile struct params	*cache_param;
+volatile struct params		*cache_param;
+// XXX generic solution?
+volatile struct vre_limits	*vparam_vre_limits;
 
 /*--------------------------------------------------------------------
  * Per thread storage for the session currently being processed by
@@ -308,6 +310,8 @@ child_main(int sigmagic, size_t altstksz)
 #endif
 
 	cache_param = heritage.param;
+	// XXX TODO - generic solution?
+	vparam_vre_limits = &cache_param->vre_limits;
 
 	AZ(pthread_key_create(&req_key, NULL));
 	AZ(pthread_key_create(&bo_key, NULL));