Re: remap_file_pages() use

From: Michal Hocko
Date: Mon May 19 2014 - 09:01:22 EST


[CCing Kirill and other people involved]

On Sun 18-05-14 00:03:28, Kenny Simpson wrote:
> I saw that remap_file_pages() was possibly going away to be replaced
> by some emulation. I've used this call in several projects over the
> years mostly as a way of mapping multiple virtual memory pages to
> alias the same private or shared memory region (to do things like
> circular buffers). mmap()
> in the case of anonymous memory doesn't work as well since there is
> not a file descriptor to reference.
>
> Would this sort of thing be supported in the emulation, or should I be
> planning on reimplementing/rewriting some things?
>
> thanks,
> -Kenny
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--
Michal Hocko
SUSE Labs
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