From: Chuck Lever <chuck.lever@xxxxxxxxxx> I've built a naive proof-of-concept of the csa_referring_call_list argument of the CB_SEQUENCE operation, and hooked it up for the CB_OFFLOAD callback operation. This has been pushed to my kernel.org "fix-async-copy" branch for folks to play around with. I've done some basic testing with a server that ensures the CB_OFFLOAD callback is sent before the COPY reply, while running a network capture. Operation appears correct, Wireshark is happy with the construction of the XDR, and the CB_SEQUENCE arguments match the SEQUENCE operation in the COPY COMPOUND. I'd like to include this series in nfsd-testing. Changes since RFC: - Add a field to struct nfsd4_slot that records its table index - Include a few additional COPY-related fixes - Some operational testing has been done Chuck Lever (5): NFSD: OFFLOAD_CANCEL should mark an async COPY as completed NFSD: Shorten CB_OFFLOAD response to NFS4ERR_DELAY NFSD: Implement CB_SEQUENCE referring call lists NFSD: Record each NFSv4 call's session slot index NFSD: Use a referring call list for CB_OFFLOAD fs/nfsd/nfs4callback.c | 132 +++++++++++++++++++++++++++++++++++++++-- fs/nfsd/nfs4proc.c | 16 ++++- fs/nfsd/nfs4state.c | 38 ++++++------ fs/nfsd/state.h | 23 +++++++ fs/nfsd/xdr4.h | 4 ++ fs/nfsd/xdr4cb.h | 5 +- 6 files changed, 193 insertions(+), 25 deletions(-) -- 2.47.0
