nfs: Initialize cb_sequenceres information before validate_seqid()
For a cb_layoutrecall replay, nfsd got CB_SEQUENCE status of zero, but all informations of cb_sequenceres are zero too !!! validate_seqid() return NFS4ERR_RETRY_UNCACHED_REP for a replay, and skip the initlize cb_sequenceres. Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
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@ -445,6 +445,13 @@ __be32 nfs4_callback_sequence(struct cb_sequenceargs *args,
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goto out;
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}
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memcpy(&res->csr_sessionid, &args->csa_sessionid,
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sizeof(res->csr_sessionid));
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res->csr_sequenceid = args->csa_sequenceid;
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res->csr_slotid = args->csa_slotid;
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res->csr_highestslotid = NFS41_BC_MAX_CALLBACKS - 1;
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res->csr_target_highestslotid = NFS41_BC_MAX_CALLBACKS - 1;
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status = validate_seqid(tbl, args);
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spin_unlock(&tbl->slot_tbl_lock);
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if (status)
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@ -462,13 +469,6 @@ __be32 nfs4_callback_sequence(struct cb_sequenceargs *args,
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goto out;
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}
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memcpy(&res->csr_sessionid, &args->csa_sessionid,
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sizeof(res->csr_sessionid));
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res->csr_sequenceid = args->csa_sequenceid;
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res->csr_slotid = args->csa_slotid;
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res->csr_highestslotid = NFS41_BC_MAX_CALLBACKS - 1;
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res->csr_target_highestslotid = NFS41_BC_MAX_CALLBACKS - 1;
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/*
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* RFC5661 20.9.3
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* If CB_SEQUENCE returns an error, then the state of the slot
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