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NFSv4: Handle NFS4ERR_DELAY and NFS4ERR_GRACE in nfs4_open_delegation_recall
A server shouldn't normally return NFS4ERR_GRACE if the client holds a delegation, since no conflicting lock reclaims can be granted, however the spec does not require the server to grant the open in this instance Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@vger.kernel.org
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@ -1432,6 +1432,12 @@ int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state
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case -ENOMEM:
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err = 0;
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goto out;
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case -NFS4ERR_DELAY:
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case -NFS4ERR_GRACE:
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set_bit(NFS_DELEGATED_STATE, &state->flags);
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ssleep(1);
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err = -EAGAIN;
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goto out;
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}
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set_bit(NFS_DELEGATED_STATE, &state->flags);
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err = nfs4_handle_exception(server, err, &exception);
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