Re: [PATCH] add __GFP_ZERO to GFP_LEVEL_MASK

[Andrew Morton]

On Tue, 24 Jul 2007 12:07:51 -0700
Christoph Lameter <clameter@xxxxxxx> wrote:

> Then there are some other flags. I am wondering why they are in
> GFP_LEVEL_MASK?
> 
> __GFP_COLD	Does not make sense for slab allocators since we have
> 		to touch the page immediately.
> 
> __GFP_COMP	No effect. Added by the page allocator on their own
> 		if a higher order allocs are used for a slab.
> 
> __GFP_MOVABLE	The movability of a slab is determined by the
> 		options specified at kmem_cache_create time. If this is
> 		specified at kmalloc time then we will have some random
> 		slabs movable and others not. 

Yes, they seem inappropriate.  Especially the first two.
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