Re: [PATCH v3 02/27] mm/memory_hotplug: Allow check_hotplug_memory_addressable to be called from drivers

From: Andrew Donnellan
Date: Fri Feb 21 2020 - 02:09:42 EST

On 21/2/20 2:26 pm, Alastair D'Silva wrote:
From: Alastair D'Silva <alastair@xxxxxxxxxxx>

When setting up OpenCAPI connected persistent memory, the range check may
not be performed until quite late (or perhaps not at all, if the user does
not establish a DAX device).

This patch makes the range check callable so we can perform the check while
probing the OpenCAPI SCM device.

Signed-off-by: Alastair D'Silva <alastair@xxxxxxxxxxx>

Reviewed-by: Andrew Donnellan <ajd@xxxxxxxxxxxxx>

Andrew Donnellan OzLabs, ADL Canberra
ajd@xxxxxxxxxxxxx IBM Australia Limited