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);
}
