Messages in this thread | | | Subject | Re: dentry bloat. | From | Arjan van de Ven <> | Date | Mon, 10 May 2004 10:32:08 +0200 |
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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 dentry....
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