Re: [PATCH 11/29] mm: only allow page table mappings for built-in zsmalloc

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On Tue, Apr 14, 2020 at 03:13:30PM +0200, Christoph Hellwig wrote:
> This allows to unexport map_vm_area and unmap_kernel_range, which are
> rather deep internal and should not be available to modules, as they for
> example allow fine grained control of mapping permissions, and also
> allow splitting the setup of a vmalloc area and the actual mapping and
> thus expose vmalloc internals.
> 
> zsmalloc is typically built-in and continues to work (just like the
> percpu-vm code using a similar patter), while modular zsmalloc also
> continues to work, but must use copies.
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Acked-by: Minchan Kim <minchan@xxxxxxxxxx>

Thanks!
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