> > Hi, > > > > It looks like bdi_thresh will always be zero if filesystem does > > synchronous writepage, resulting in very poor write performance. > > > > Hostfs (UML) is one such example, but there might be others. > > > > The only solution I can think of is to add a set_page_writeback(); > > end_page_writeback() pair (or some reduced variant, that only does > > the proportions magic). But that means auditing quite a few > > filesystems... > > Ouch... > > I take it there is no other function that is shared between all these > writeout paths which we could stick a bdi_writeout_inc(bdi) in?
No, and you can't detect it from the callers either I think. Miklos - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
