[master] 5efe0cd Add a backpointer from boc to busyobj for now.

[Poul-Henning Kamp]

commit 5efe0cda4edb9f652856b3d907a7483264e84fa8
Author: Poul-Henning Kamp <phk at FreeBSD.org>
Date:   Wed Jan 20 20:28:16 2016 +0000

    Add a backpointer from boc to busyobj for now.
    
    I don't think this will be necessary at the end state, but it makes
    the transformation easier.

diff --git a/bin/varnishd/cache/cache.h b/bin/varnishd/cache/cache.h
index d314942..596e572 100644
--- a/bin/varnishd/cache/cache.h
+++ b/bin/varnishd/cache/cache.h
@@ -399,6 +399,7 @@ struct boc {
 	enum busyobj_state_e	state;
 	uint8_t			*vary;
 
+	struct busyobj		*busyobj;
 };
 
 /* Object core structure ---------------------------------------------
diff --git a/bin/varnishd/cache/cache_busyobj.c b/bin/varnishd/cache/cache_busyobj.c
index c7c562b..4c199a3 100644
--- a/bin/varnishd/cache/cache_busyobj.c
+++ b/bin/varnishd/cache/cache_busyobj.c
@@ -71,6 +71,7 @@ vbo_New(void)
 	INIT_OBJ(bo->boc, BOC_MAGIC);
 	Lck_New(&bo->boc->mtx, lck_busyobj);
 	AZ(pthread_cond_init(&bo->boc->cond, NULL));
+	bo->boc->busyobj = bo;
 	return (bo);
 }