[master] 67d1592 Have the busyobj hold a ref on the clients session, so we can get at client/server IPs.

[Poul-Henning Kamp]

commit 67d15920302f4bf7486193ada259f1966853e3b3
Author: Poul-Henning Kamp <phk at FreeBSD.org>
Date:   Thu Apr 7 08:46:35 2016 +0000

    Have the busyobj hold a ref on the clients session, so we can get
    at client/server IPs.

diff --git a/bin/varnishd/cache/cache.h b/bin/varnishd/cache/cache.h
index eef6d8b..77f62e1 100644
--- a/bin/varnishd/cache/cache.h
+++ b/bin/varnishd/cache/cache.h
@@ -472,6 +472,7 @@ struct busyobj {
 	 */
 	int			retries;
 	struct req		*req;
+	struct sess		*sp;
 	struct worker		*wrk;
 
 	struct vfp_ctx		vfc[1];
diff --git a/bin/varnishd/cache/cache_fetch.c b/bin/varnishd/cache/cache_fetch.c
index fb7c638..8a513f2 100644
--- a/bin/varnishd/cache/cache_fetch.c
+++ b/bin/varnishd/cache/cache_fetch.c
@@ -989,6 +989,7 @@ vbf_fetch_thread(struct worker *wrk, void *priv)
 
 	wrk->vsl = NULL;
 	HSH_DerefBoc(wrk, bo->fetch_objcore);
+	SES_Rel(bo->sp);
 	VBO_ReleaseBusyObj(wrk, &bo);
 	THR_SetBusyobj(NULL);
 }
@@ -1029,6 +1030,8 @@ VBF_Fetch(struct worker *wrk, struct req *req, struct objcore *oc,
 
 	THR_SetBusyobj(bo);
 
+	bo->sp = req->sp;
+	SES_Ref(bo->sp);
 
 	AN(bo->vcl);
 
@@ -1061,6 +1064,8 @@ VBF_Fetch(struct worker *wrk, struct req *req, struct objcore *oc,
 		if (bo->stale_oc != NULL)
 			(void)HSH_DerefObjCore(wrk, &bo->stale_oc);
 		HSH_DerefBoc(wrk, oc);
+		SES_Rel(bo->sp);
+		VBO_ReleaseBusyObj(wrk, &bo);
 	} else {
 		bo = NULL; /* ref transferred to fetch thread */
 		if (mode == VBF_BACKGROUND) {