Re: Why don't we make mmap MAP_SHARED with /dev/zero possible?

["Benjamin C.R. LaHaise" <blah@kvack.org>]

On Wed, 3 Nov 1999, Ingo Molnar wrote:

> it's now an unconditional __GFP_HIGHMEM in my tree. HIGHMEM gfp()
> allocation automatically falls back to allocate in lowmem, if highmem
> lists are empty.

I'd like to look through the patches to see how you're doing things before
making any comments.  Specifically, I want to look at the buffer head
address thing that was mentioned -- given that the devices that support
addressing memory above 4G will expect a 64 bit address, I don't think the
shift is the right way to go.

		-ben

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