IOSP
kstat_function(IOSP); \
IOSP->reads++;
IOSP->nread += n_done;
IOSP->writes++;
IOSP->nwritten += n_done;
kstat_function(IOSP); \
IOSP->reads++;
IOSP->nread += n_done;
IOSP->writes++;
IOSP->nwritten += n_done;