Re: [PATCH 1/5] rcusync: introduce struct rcu_sync_ops

[Steven Rostedt]

On Fri, 4 Oct 2013 12:12:25 -0700
Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:


>  - together with using a few inline functions, suddenly the "indirect"
> jumps through this type descriptor end up actually being nice direct
> compile-time constants: iow, they get turned into direct jumps.

As all the rcu_synchronization() methods (on non UP) are quite
expensive, I doubt that this optimization is worth anything.

> 
> Tadaa. You actually get good code generation, and you use *less*
> dynamic memory since you don't have to have this pointer to the
> descriptor.

Getting rid of the extra dynamic memory and the pointer business, on the
other hand, does make your suggestion worth doing.

-- Steve

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