1990/11211/port/page.c (diff list | history)

1990/1115/sys/src/9/port/page.c:294,304 – 1990/11211/sys/src/9/port/page.c:294,304 (short | long | prev | next)
1990/0227		ulong i; for(o=origalloc.arena,i=0; i<conf.norig; i++,o++) if(o->npage && o->qid==c->qid && o->va==va){
1990/11211		if(o->npage && o->qid.path==c->qid.path && o->va==va){
1990/0227		lock(o); if(o->npage && o->qid==c->qid)
1990/11211		if(o->npage && eqqid(o->qid, c->qid))
1990/0227		if(o->va==va && o->npte==npte && o->flag==flag)
1990/0303		if(o->mchan==c->mchan && o->mqid==c->mqid && o->type==c->type){
1990/11211		if(o->mchan==c->mchan && o->type==c->type && eqqid(o->mqid, c->mqid)){
1990/0227		if(o->chan == 0){ o->chan = c; incref(c);
1990/1115/sys/src/9/port/page.c:329,335 – 1990/11211/sys/src/9/port/page.c:329,334
1990/0227		o->nproc = 1; o->npage = 0; o->chan = c;
1990/0312		o->nmod = 0;
1990/0227		if(c){ o->type = c->type; o->qid = c->qid;
1990/1115/sys/src/9/port/page.c:338,345 – 1990/11211/sys/src/9/port/page.c:337,344
1990/0227		incref(c); }else{ o->type = -1; o->qid = -1;
1990/0303		o->mqid = -1;
1990/11211		o->qid = (Qid){~0, ~0}; o->mqid = (Qid){~0, ~0};
1990/0303		o->mchan = 0;
1990/0227		}
1990/0802		if(u && u->p && waserror()){
1990/1115/sys/src/9/port/page.c:401,408 – 1990/11211/sys/src/9/port/page.c:400,405
1990/0227		} unlock(&modalloc); print("no mods\n");
1990/0312		DEBUG();
1990/1013		panic("mods %lux %d %d", o->va, o->npte, o->nmod);
1990/0227		if(u == 0) panic("newmod"); u->p->state = Wakeme;
1990/1115/sys/src/9/port/page.c:429,435 – 1990/11211/sys/src/9/port/page.c:426,431
1990/0227		if(pte->page==0) panic("forkmod zero page"); if(pte->proc != u->p) panic("forkmod wrong page");
1990/1013		npte = newmod(o);
1990/0312		o->nmod++;
1990/0227		npte->proc = p; npte->page = pte->page; pte->page->ref++;
1990/1115/sys/src/9/port/page.c:490,496 – 1990/11211/sys/src/9/port/page.c:486,491
1990/0227		} pg->ref--; o->npage--;
1990/0312		o->nmod--;
1990/0227		old = (PTEA*)pte; pte = pte->nextva; lock(&modalloc);
1990/1115/sys/src/9/port/page.c:653,659 – 1990/11211/sys/src/9/port/page.c:648,654
1990/0802		unlock(&ptealloc);
1990/0814		unlock(o);
1990/0802		if(u && u->p) error(0, Enovmem);
1990/11211		error(Enovmem);
1990/0802		panic("growpte fails %d %lux %d\n", n, o->va, o->npte);
1990/0227		}