Re: [Lse-tech] Re: [RFC] Dynamic percpu data allocator

Dipankar Sarma (dipankar@in.ibm.com)
Tue, 4 Jun 2002 01:18:06 +0530

On Mon, Jun 03, 2002 at 02:12:29PM -0500, Mala Anand wrote:
> I looked at the slab code, per cpu slab is already implemented by Manfred
> Spraul.
> Look at cpu_data[NR_CPUS] in kmem_cache_s structure.
>

Sorry, I should have been more clear saying what I wanted.
Yes, kmem_cache_alloc() allocates one object from "this" CPU's slabs. What
I want is a kmalloc_percupu() that allocates one copy for every
CPU in the system. Think of this as dynamically allocacting an
array of NR_CPUS objects with objects residing on different cachelines.

Thanks

-- 
Dipankar Sarma  <dipankar@in.ibm.com> http://lse.sourceforge.net
Linux Technology Center, IBM Software Lab, Bangalore, India.
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