195 	d = devtab[devno('|', 0)];  in syspipe()
344 				c->umc = devtab[c->umc->type]->open(c->umc, OREAD);  in unionread()
347 			nr = devtab[c->umc->type]->read(c->umc, va, n, c->umc->offset);  in unionread()
580 			l = devtab[nc->type]->stat(nc, buf, nbuf);  in mountfix()
677 			nn = devtab[c->type]->read(c, p, n, c->devoffset);  in read()
681 		nnn = nn = devtab[c->type]->read(c, p, n, off);  in read()
753 	m = devtab[c->type]->write(c, (void*)arg[1], n, off);  in write()
808 	if(devtab[c->type]->dc == '|')  in sseek()
840 		n = devtab[c->type]->stat(c, buf, sizeof buf);  in sseek()
942 	l = devtab[c->type]->stat(c, (uchar*)arg[1], l);  in sysfstat()
963 	l = devtab[c->type]->stat(c, (uchar*)arg[1], l);  in sysstat()
1029 		c0 = devtab[ret]->attach((char*)&bogus);  in bindmount()
1158 	devtab[c->type]->remove(c);  in sysremove()
1188 	l = devtab[c->type]->wstat(c, d, nd);  in wstat()
1272 	l = devtab[c->type]->stat(c, buf, sizeof buf);  in sys_stat()
1306 	l = devtab[c->type]->stat(c, buf, sizeof buf);  in sys_fstat()