Re: nommu: Add new vmalloc_user() and remap_vmalloc_range() interfaces.

[David Howells]

Paul Mundt <lethal@xxxxxxxxxxxx> wrote:

> This builds on top of the earlier vmalloc_32_user() work introduced by
> b50731732f926d6c49fd0724616a7344c31cd5cf, as we now have places in the
> nommu allmodconfig that hit up against these missing APIs.
> 
> As vmalloc_32_user() is already implemented, this is moved over to
> vmalloc_user() and simply made a wrapper. As all current nommu platforms
> are 32-bit addressable, there's no special casing we have to do for
> ZONE_DMA and things of that nature as per GFP_VMALLOC32.
> 
> remap_vmalloc_range() needs to check VM_USERMAP in order to figure out
> whether we permit the remap or not, which means that we also have to
> rework the vmalloc_user() code to grovel for the VMA and set the flag.

Acked-by: David Howells <dhowells@xxxxxxxxxx>
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