void devream(Device *d, int top) { Device *l; loop: print("\tdevream: %Z %d\n", d, top); switch(d->type) { default: print("ream: unknown dev type %Z\n", d); return; case Devcw: devream(d->cw.w, 0); devream(d->cw.c, 0); if(top) { wlock(&mainlock); cwream(d); wunlock(&mainlock); } devinit(d); return; case Devfworm: devream(d->fw.fw, 0); fwormream(d); break; case Devpart: devream(d->part.d, 0); break; case Devmlev: case Devmcat: case Devmirr: for(l=d->cat.first; l; l=l->link) devream(l, 0); break; case Devjuke: case Devworm: case Devlworm: case Devwren: break; case Devswab: d = d->swab.d; goto loop; } devinit(d); if(top) { wlock(&mainlock); rootream(d, ROOT_ADDR); superream(d, SUPER_ADDR); wunlock(&mainlock); } }
void main(int argc, char *argv[]) { Filsys *fs; int ream, fsok; int newbufsize, nocheck; char buf[NAMELEN]; int pid, ctl; progname = "kfs"; procname = "init"; /* * insulate from invoker's environment and keep it from swapping */ rfork(RFNAMEG|RFNOTEG|RFREND); confinit(); sfd = -1; ream = 0; newbufsize = 0; nocheck = 0; wrenfile = "/dev/sdC0/fs"; pid = getpid(); snprint(buf, sizeof buf, "/proc/%d/ctl", pid); ctl = open(buf, OWRITE); fprint(ctl, "noswap\n"); close(ctl); buf[0] = '\0'; ARGBEGIN{ case 'b': newbufsize = atol(ARGF()); break; case 'c': nocheck = 1; break; case 'f': wrenfile = ARGF(); break; case 'm': nwren = atol(ARGF()); break; case 'n': strncpy(buf, ARGF(), NAMELEN-1); buf[NAMELEN-1] = '\0'; break; case 'p': cmdmode = atol(ARGF()); break; case 'r': ream = 1; break; case 's': sfd = 0; rfd = dup(1, -1); close(1); if(open("/dev/cons", OWRITE) < 0) open("#c/cons", OWRITE); break; case 'B': conf.niobuf = strtoul(ARGF(), 0, 0); break; case 'C': chat = 1; break; default: usage(); }ARGEND if(argc != 0) usage(); cmdfd = 2; if (access(wrenfile, AREAD|AWRITE) == -1) sysfatal("%s cannot access device", wrenfile); formatinit(); sublockinit(); if(buf[0]) sprint(service, "kfs.%s", buf); else strcpy(service, "kfs"); chan = chaninit(service); consinit(); tlocks = ialloc(NTLOCK * sizeof *tlocks); uid = ialloc(conf.nuid * sizeof(*uid)); uidspace = ialloc(conf.uidspace * sizeof(*uidspace)); gidspace = ialloc(conf.gidspace * sizeof(*gidspace)); /* * init global locks */ wlock(&mainlock); wunlock(&mainlock); /* * init the file system, ream it if needed, and get the block sizes */ ream = fsinit(ream, newbufsize); iobufinit(); for(fs=filesys; fs->name; fs++) if(fs->flags & FREAM){ /* set by fsinit if reamed */ ream++; rootream(fs->dev, getraddr(fs->dev)); superream(fs->dev, superaddr(fs->dev)); } boottime = time(nil); consserve(); fsok = superok(filesys[0].dev, superaddr(filesys[0].dev), 0); if(!nocheck && !ream && !fsok) cmd_exec("check fq"); startproc(forkserve, "srv"); startproc(syncproc, "sync"); exits(0); }