shmem_file_setup not exported

[Måns Rullgård]

I noticed this change in mm/shmem.c:

-EXPORT_SYMBOL(shmem_file_setup);

Is there a reason for this, other than nobody using it?

I used that function in a module I wrote, mostly as a proof of
concept, for someone who was looking for a way to unmap memory pages
while retaining their contents, and being able to map them later.

-- 
Måns Rullgård
mru@xxxxxxxxxxxxx
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