ref: 24cf90c63a76c0692625b7ca63e9dfb1368a5695 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];