Force a WSL_Flush() to make sure the shmrecords pertaining to a reused

backend connection are chronological in the shmlog.



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4630 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/cache_backend.c

@@ -407,6 +407,11 @@ VBE_RecycleFd(struct sess *sp)
 	bp = sp->vbe->backend;
 
 	WSL(sp->wrk, SLT_BackendReuse, sp->vbe->fd, "%s", bp->vcl_name);
+	/*
+	 * Flush the shmlog, so that another session reusing this backend
+	 * will log chronologically later than our use of it.
+	 */
+	WSL_Flush(sp->wrk, 0);
 	Lck_Lock(&bp->mtx);
 	VSL_stats->backend_recycle++;
 	VTAILQ_INSERT_HEAD(&bp->connlist, sp->vbe, list);