Re: dentry bloat.
From: Andrew Morton
Date: Mon May 10 2004 - 04:49:59 EST
Arjan van de Ven <arjanv@xxxxxxxxxx> wrote:
> On Mon, 2004-05-10 at 10:27, Helge Hafting wrote:
> > Matt Mackall wrote:
> > >One also wonders about whether all the RCU stuff is needed on UP. I'm
> > >not sure if I grok all the finepoints here, but it looks like the
> > >answer is no and that we can make struct_rcu head empty and have
> > >call_rcu fall directly through to the callback. This would save
> > >something like 16-32 bytes (32/64bit), not to mention a bunch of
> > >dinking around with lists and whatnot.
> > >
> > >So what am I missing?
> > >
> > >
> > Preempt can happen anytime, I believe.
> ok so for UP-non-preempt we can still get those 16 bytes back from the
I suppose so. And on small SMP, really. We chose not to play those games
early on so the code got the best testing coverage.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/