Re: [PATCH] device-dax: Add a 'resource' attribute

From: Dan Williams
Date: Thu Jun 20 2019 - 20:53:49 EST


On Thu, Jun 20, 2019 at 5:41 PM Vishal Verma <vishal.l.verma@xxxxxxxxx> wrote:
>
> device-dax based devices were missing a 'resource' attribute to indicate
> the physical address range contributed by the device in question. This
> information is desirable to userspace tooling that may want to use the
> dax device as system-ram, and wants to selectively hotplug and online
> the memory blocks associated with a given device.
>
> Without this, the tooling would have to parse /proc/iomem for the memory
> ranges contributed by dax devices, which can be a workaround, but it is
> far easier to provide this information in the sysfs hierarchy.
>
> Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
> Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
> Signed-off-by: Vishal Verma <vishal.l.verma@xxxxxxxxx>

Looks good to me, applied.