[PATCH 4/9] NFSD: Budget the CB_OFFLOAD opcode

NFS4_enc_cb_offload_sz counts the file handle, the stateid, and the
offload information. encode_cb_offload4args() emits an opcode ahead
of all three, so the macro falls one XDR word short.

This macro sizes p_arglen and nothing else. rq_callsize pads that
with two credential slacks, so the shortfall has never reached
the send buffer. No backport is needed.

Signed-off-by: Chuck Lever <[email protected]>
---
 fs/nfsd/xdr4cb.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/nfsd/xdr4cb.h b/fs/nfsd/xdr4cb.h
index 5285934b3a54..21d8280edead 100644
--- a/fs/nfsd/xdr4cb.h
+++ b/fs/nfsd/xdr4cb.h
@@ -58,6 +58,7 @@
 					XDR_QUADLEN(NFS4_VERIFIER_SIZE))
 #define NFS4_enc_cb_offload_sz		(cb_compound_enc_hdr_sz +       \
 					cb_sequence_enc_sz +            \
+					op_enc_sz +			\
 					enc_nfs4_fh_sz +		\
 					enc_stateid_sz +		\
 					enc_cb_offload_info_sz)

-- 
2.54.0