nfsd41: Deny new lock before RECLAIM_COMPLETE done
Before nfs41 client's RECLAIM_COMPLETE done, nfs server should deny any new locks or opens. rfc5661: " Whenever a client establishes a new client ID and before it does the first non-reclaim operation that obtains a lock, it MUST send a RECLAIM_COMPLETE with rca_one_fs set to FALSE, even if there are no locks to reclaim. If non-reclaim locking operations are done before the RECLAIM_COMPLETE, an NFS4ERR_GRACE error will be returned. " Signed-off-by: Mi Jinlong <mijinlong@cn.fujitsu.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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@ -291,6 +291,15 @@ nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
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if (open->op_create && open->op_claim_type != NFS4_OPEN_CLAIM_NULL)
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return nfserr_inval;
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/*
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* RFC5661 18.51.3
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* Before RECLAIM_COMPLETE done, server should deny new lock
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*/
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if (nfsd4_has_session(cstate) &&
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!cstate->session->se_client->cl_firststate &&
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open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS)
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return nfserr_grace;
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if (nfsd4_has_session(cstate))
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copy_clientid(&open->op_clientid, cstate->session);
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