1 void fmerge(Dptr*, char*, char*, int, int); 2 int fbwrite(Icache*, Ibuf*, char*, ulong, int); 3 long fwrite(Icache*, Ibuf*, char*, ulong, long); 4 Dptr* fpget(Icache*, Ibuf*, ulong); 5 long fread(Icache*, Ibuf*, char*, ulong, long); 6