Re: [PATCH 1/3] IB/ehca: Replace vmalloc with kmalloc | linuxppc-dev

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Hi,

Stefan Roscher wrote:
On Wednesday 22 April 2009 04:10:18 pm michael wrote:

Hi,

I don't take the point, if it is not import use the vmalloc. Why you try 
with a kmalloc
alloc first? and why do not use kzalloc?

Because kmalloc() is faster than vmalloc() causing a huge performance win
when someone allocates a large number of queue pairs. We fall back to
vmalloc() only if kmalloc() can't deliver the memory chunk.

Sorry I catch later the performace issue.
We don't need kzalloc because we fill the list right after the alloc.

regards Stefan

Regards Michael
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