Hello, On Tue, Nov 18, 2014 at 05:19:18PM +0800, Lai Jiangshan wrote: > Is it too ugly?
What is "it"? The whole thing? percpu preloading? I'm just gonna continue assuming that you're talking about preloading. If you think it's ugly, please go ahead and explain why you think it is. It's almost impossible to respond to your "review". It's not clear what your subject matter or opinion on it is. Might as well just bang on the keyboard randomly. When reviewing (or communicating in general), please try to properly form and elaborate your points. Other people can't know what's going on in your brain and have to speculate what you could have meant. This implementation of preloading an evolution of a design pattern which, IIRC, first started with the radix tree. The non-failing aspect was introduced while the pattern was being applied to idr. I think it's one of the better ways to implement preloading. > What will be the most important result it achieve? This is the same as other preloading. It allows pulling allocation out of critical section so that it can be done with more generous allocation mask (ie. GFP_KERNEL instead of GPF_NOWAIT). It's a common pattern found in data structures which may allocate memory internally such as radix tree or idr. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
