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From: Attilio Rao <attilio@FreeBSD.org>
Date: Fri, 15 Feb 2013 17:22:58 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-user@freebsd.org
Subject: svn commit: r246844 - user/attilio/vmc-playground/sys/vm
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Author: attilio
Date: Fri Feb 15 17:22:57 2013
New Revision: 246844
URL: http://svnweb.freebsd.org/changeset/base/246844

Log:
  Remove an unuseful check as looking up into an empty trie should be
  as fast as checking a NULL ptr.
  
  Sponsored by:	EMC / Isilon storage division

Modified:
  user/attilio/vmc-playground/sys/vm/vm_page.c

Modified: user/attilio/vmc-playground/sys/vm/vm_page.c
==============================================================================
--- user/attilio/vmc-playground/sys/vm/vm_page.c	Fri Feb 15 17:21:41 2013	(r246843)
+++ user/attilio/vmc-playground/sys/vm/vm_page.c	Fri Feb 15 17:22:57 2013	(r246844)
@@ -1053,9 +1053,7 @@ vm_page_cache_lookup(vm_object_t object,
 
 	VM_OBJECT_LOCK_ASSERT(object, MA_OWNED);
 	mtx_assert(&vm_page_queue_free_mtx, MA_OWNED);
-	if (!vm_object_cache_is_empty(object))
-		return (vm_radix_lookup(&object->cache, pindex));
-	return (NULL);
+	return (vm_radix_lookup(&object->cache, pindex));
 }
 
 /*