Rush the objheader if there is a waiting list when it is deref'ed.

Fixes: #1823

Rush the objheader if there is a waiting list when it is deref'ed.
Fixes: #1823
d418ffab · Poul-Henning Kamp · Martin Blix Grydeland · 8795c23e · d418ffab
Commit d418ffab authored Jan 06, 2016 by Poul-Henning Kamp Committed by Martin Blix Grydeland Jan 25, 2016
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cache_hash.c bin/varnishd/cache/cache_hash.c +5 -0

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--- a/bin/varnishd/cache/cache_hash.c
+++ b/bin/varnishd/cache/cache_hash.c
@@ -864,6 +864,11 @@ HSH_DerefObjHead(struct dstat *ds, struct objhead **poh)
 		oh->refcnt--;
 		Lck_Unlock(&oh->mtx);
 		return(1);
+	} else if (oh->waitinglist != NULL) {
+		Lck_Lock(&oh->mtx);
+		if (oh->waitinglist != NULL)
+			hsh_rush(ds, oh);
+		Lck_Unlock(&oh->mtx);
 	}

 	assert(oh->refcnt > 0);