the lock info during I/O to work around the issue for short tem
Severity : normal
+Bugzilla : 19933
+Description: control DCACHE_LUSTRE_INVALID flag with MDS_INODELOCK_LOOKUP lock
+Details : DCACHE_LUSTRE_INVALID is controlled by MDS_INODELOCK_LOOKUP
+ lock which is corresponding to "IT_LOOKUP", do not skip invalidate
+ for other intent.
+
+Severity : normal
Bugzilla : 20997
Description: Cannot send after transport shutdown
Details : Clear imp_vbr_failed flag upon eviction