K 10 svn:author V 8 rmacklem K 8 svn:date V 27 2018-07-12T22:59:02.064751Z K 7 svn:log V 457 MFC: r333579 The NFSv4.1 server should return NFSERR_BACKCHANBUSY instead of NFS_OK. When an NFSv4.1 session is busy due to a callback being in progress, nfsrv_freesession() should return NFSERR_BACKCHANBUSY instead of NFS_OK. The only effect this has is that the DestroySession operation will report the failure for this case and this probably has little or no effect on a client. Spotted by inspection and no failures related to this have been reported. END