Re: [Intel-IOMMU 02/10] Library routine for pre-allocat pool handling

From: Christoph Lameter
Date: Fri Jun 08 2007 - 18:36:19 EST

On Fri, 8 Jun 2007, Andreas Kleen wrote:

> > That's what kmem_cache_alloc() is for?!?!
> Tradtionally that was not allowed in block layer path. Not sure
> it is fully obsolete with the recent dirty tracking work, probably not.

Why was it not allowed? Because interrupts are disabled?

> Besides it would need to be GFP_ATOMIC and the default
> atomic pools are not that big.

Those could be increased. I think Mel has them already increased in mm.
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