From: Chuck Lever <chuck.lever@xxxxxxxxxx> Async COPY operations will wait indefinitely if the CB_OFFLOAD is lost. Fix this by using OFFLOAD_STATUS to periodically check the progress of the COPY. This is compile-tested only. Looking for review and testing. IMO the only controversial part is how OFFLOAD_STATUS will handle situations where the server is temporarily unreachable. Right now I've set RPC_TASK_SOFTCONN so the RPC is dropped immediately, and the COPY operation should simply go back to waiting another few seconds. Chuck Lever (4): NFS: Implement NFSv4.2's OFFLOAD_STATUS XDR NFS: Refactor trace_nfs4_offload_cancel NFS: Rename struct nfs4_offloadcancel_data NFS: Implement NFSv4.2's OFFLOAD_STATUS operation fs/nfs/nfs42proc.c | 114 +++++++++++++++++++++++++++++++++----- fs/nfs/nfs42xdr.c | 101 ++++++++++++++++++++++++++++++++- fs/nfs/nfs4trace.h | 11 +++- fs/nfs/nfs4xdr.c | 1 + include/linux/nfs4.h | 1 + include/linux/nfs_fs_sb.h | 1 + include/linux/nfs_xdr.h | 1 + 7 files changed, 215 insertions(+), 15 deletions(-) base-commit: e67572cd2204894179d89bd7b984072f19313b03 -- 2.44.0
