SK_JLEN
buf += SK_JLEN;
paddr += SK_JLEN;
SK_JLEN, SK_NTXSEG, SK_JLEN,
m_new->m_ext.ext_size = SK_JLEN;
#define SK_MCLBYTES SK_JLEN
#define SK_RESID (SK_JPAGESZ - (SK_JLEN * SK_JSLOTS) % SK_JPAGESZ)
#define SK_JMEM ((SK_JLEN * SK_JSLOTS) + SK_RESID)