ref: b0f2f4e47d6d728914a551e40a547302b098bc4d dir: /sys/src/cmd/dossrv/dosfs.h/
enum { Maxfdata = IOUNIT, Maxiosize = IOHDRSZ+Maxfdata, }; extern Fcall *req; extern Fcall *rep; extern char repdata[Maxfdata]; extern uchar statbuf[STATMAX];