Re: btrfs_tree_lock & trylock

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On Mon, 2008-09-08 at 15:54 +0200, Andi Kleen wrote:
> > The idea is to try to spin for a bit to avoid scheduling away, which is
> > especially important for the high levels.  Most holders of the mutex
> > let it go very quickly.
> 
> Ok but that surely should be implemented in the general mutex code then
> or at least in a standard adaptive mutex wrapper? 

That depends, am I the only one crazy enough to think its a good idea?

If it were in the general mutex code, that's probably a faster/smarter
way to spin.

-chris


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