Details : Direct I/O operations should return actual amount of bytes
transferred rather than requested size.
+Severity : enhancement
+Bugzilla : 10589
+Description: metadata RPC reduction (e.g. for rm performance)
+Details : decrease the amount of synchronous RPC between clients and servers
+ by canceling conflicing lock before the operation on the client side
+ and packing thier handles into the main operation RPC to server.
+
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2007-05-03 Cluster File Systems, Inc. <info@clusterfs.com>