Re: [PATCH] add __GFP_ZERP to GFP_LEVEL_MASK

From: Andrew Morton
Date: Mon Jul 23 2007 - 18:13:49 EST


On Mon, 23 Jul 2007 14:43:23 -0700
Christoph Lameter <clameter@xxxxxxx> wrote:

> __GFP_ZERO is implemented by the slab allocators (the page allocator
> has no knowledge about the length of the object to be zeroed). The slab
> allocators do not pass __GFP_ZERO to the page allocator.

OK, well that was weird. So

kmalloc(42, GFP_KERNEL|__GFP_ZERO);

duplicates

kzalloc(42, GFP_KERNEL);


Why do it both ways?
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/