Re: [thiscpuops upgrade 10/10] Lockless (and preemptless) fastpathsfor slub

[Christoph Lameter]

On Wed, 24 Nov 2010, Peter Zijlstra wrote:

> This thing still relies on disabling IRQs in the slow path, which means
> its still going to be a lot of work to make it work on -rt.

The disabling of irqs is because slab operations are used from interrupt
context. If we can avoid slab operations from interrupt contexts then we
can drop the interrupt disable in the slab allocators.

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