[PATCH 6/8] mm: don't include <linux/memremap.h> in <linux/mm.h>

[Logan Gunthorpe]

On 2022-02-06 11:32 p.m., Christoph Hellwig wrote:
> Move the check for the actual pgmap types that need the free at refcount
> one behavior into the out of line helper, and thus avoid the need to
> pull memremap.h into mm.h.
> 
> Signed-off-by: Christoph Hellwig <hch at lst.de>

I've noticed mm/memcontrol.c uses is_device_private_page() and also
needs a memremap.h include added to compile with my configuration.

Logan