,s!Lock;!Lock lk;!,s!lock(c)!lock(\&c->ref.lk)!g,s!lock(\&mntalloc)!lock(\&mntalloc.lk)!g,s!lock(m)!lock(\&m->lk)!g,s!ref(m->c)!ref(\&m->c->ref)!g,s!ref(c->mchan)!ref(\&c->mchan->ref)!g/c = bogus.chan/a 	{ // Plan 9 VX addition		extern Dev mntloopdevtab;		Chan *mc;		if(devtab[c->type] == &mntloopdevtab){			if(bogus.authchan || (bogus.spec && bogus.spec[0]))				error(Ebadarg);			mc = c->aux;			incref(&mc->ref);			return mc;		}	} .