Always explicitly call vfp_nop_end() after the "real" VFP->end()

to tuck in the last storage segment sitting on sp->work->storage,
rather than have this code duplicated througout all the VFP->end()'s

bin/varnishd/cache_esi_fetch.c

@@ -292,7 +292,6 @@ printf("BYTES = %d\n", i);
 static int __match_proto__()
 vfp_esi_end(struct sess *sp)
 {
-	struct storage *st;
 	struct vsb *vsb;
 	struct vef_priv *vef;
 	ssize_t l;
@@ -315,9 +314,6 @@ printf("END\n");
 		vsb_delete(vsb);
 	}
 
-	st = sp->wrk->storage;
-	sp->wrk->storage = NULL;
-
 	if (sp->wrk->vef_priv != NULL) {
 		vef = sp->wrk->vef_priv;
 		sp->wrk->vef_priv = NULL;
@@ -326,17 +322,6 @@ printf("END\n");
 printf("TOT %jd\n", vef->tot);
 sp->obj->len = vef->tot;
 	}
-
-	if (st == NULL)
-		return (0);
-
-	if (st->len == 0) {
-		STV_free(st);
-		return (0);
-	}
-	if (st->len < st->space)
-		STV_trim(st, st->len);
-	VTAILQ_INSERT_TAIL(&sp->obj->store, st, list);
 	return (0);
 }
 

bin/varnishd/cache_fetch.c

@@ -533,6 +533,12 @@ FetchBody(struct sess *sp)
 		INCOMPL();
 	}
 	XXXAZ(sp->wrk->vfp->end(sp));
+	/*
+	 * It is OK for ->end to just leave the last storage segment
+	 * sitting on sp->wrk->storage, we will always call vfp_nop_end()
+	 * to get it trimmed and added to the object.
+	 */
+	XXXAZ(vfp_nop_end(sp));
 	AZ(sp->wrk->storage);
 
 	WSL(sp->wrk, SLT_Fetch_Body, sp->vbc->fd, "%u %d %u",

bin/varnishd/cache_gzip.c

@@ -390,24 +390,10 @@ static int __match_proto__()
 vfp_gunzip_end(struct sess *sp)
 {
 	struct vgz *vg;
-	struct storage *st;
 
 	vg = sp->wrk->vgz_rx;
 	CHECK_OBJ_NOTNULL(vg, VGZ_MAGIC);
 	VGZ_Destroy(&vg);
-
-	st = sp->wrk->storage;
-	sp->wrk->storage = NULL;
-	if (st == NULL)
-		return (0);
-
-	if (st->len == 0) {
-		STV_free(st);
-		return (0);
-	}
-	if (st->len < st->space)
-		STV_trim(st, st->len);
-	VTAILQ_INSERT_TAIL(&sp->obj->store, st, list);
 	return (0);
 }
 
@@ -472,7 +458,6 @@ vfp_gzip_end(struct sess *sp)
 	size_t dl;
 	const void *dp;
 	int i;
-	struct storage *st;
 
 	vg = sp->wrk->vgz_rx;
 	CHECK_OBJ_NOTNULL(vg, VGZ_MAGIC);
@@ -484,15 +469,6 @@ vfp_gzip_end(struct sess *sp)
 		sp->obj->len += dl;
 	} while (i != Z_STREAM_END);
 	VGZ_Destroy(&vg);
-
-	st = sp->wrk->storage;
-	sp->wrk->storage = NULL;
-	if (st != NULL && st->len == 0) {
-		STV_free(st);
-	} else if (st != NULL && st->len < st->space) {
-		STV_trim(st, st->len);
-		VTAILQ_INSERT_TAIL(&sp->obj->store, st, list);
-	}
 	return (0);
 }