nfs4_get_open_seqid
nown->open_seqid = nfs4_get_open_seqid(oop) + 1;
seqid = nfs4_get_open_seqid(oop) + 1;
seqid = nfs4_get_open_seqid(oop) + 1;
seqid = nfs4_get_open_seqid(oop) + 1;
seqid = nfs4_get_open_seqid(oop) + 1;
seqid = nfs4_get_open_seqid(oop) + 1;
extern seqid4 nfs4_get_open_seqid(nfs4_open_owner_t *);