static long
ipbwrite(Chan* ch, Block* bp, ulong offset)
{
Conv *c;
Proto *x;
Fs *f;
int n;
switch(TYPE(ch->qid)){
case Qdata:
f = ipfs[ch->dev];
x = f->p[PROTO(ch->qid)];
c = x->conv[CONV(ch->qid)];
if(c->wq == nil)
error(Eperm);
if(bp->next)
bp = concatblock(bp);
n = BLEN(bp);
qbwrite(c->wq, bp);
return n;
default:
return devbwrite(ch, bp, offset);
}
}
static long
loopbackbwrite(Chan *c, Block *bp, ulong off)
{
Loop *lb;
lb = c->aux;
if(TYPE(c->qid.path) == Qdata)
return loopoput(lb, &lb->link[ID(c->qid.path) ^ 1], bp);
return devbwrite(c, bp, off);
}
