mds: adjust LocalLock can_xlock_local().

I don't remember why we needed can_xlock_local() to begin with, but
I can tell that adding this get_xlock_by() check won't stop anything
working that was ever working to begin with (really it's still not
strong enough a check).

Signed-off-by: Greg Farnum <gregory.farnum@dreamhost.com>
Signed-off-by: Sage Weil <sage.weil@dreamhost.com>

diff --git a/src/mds/LocalLock.h b/src/mds/LocalLock.h
index 70a5482808665de68f8d8163097e56dfecfcdcc9..c797ea7d3a240e2ddd54017eb0f95064fa441f4d 100644 (file)
--- a/src/mds/LocalLock.h
+++ b/src/mds/LocalLock.h
@@ -32,7 +32,7 @@ public:
   }
 
   bool can_xlock_local() const {
-    return !is_wrlocked();
+    return !is_wrlocked() && (get_xlock_by() == 0);
   }
 
   bool can_wrlock() const {