RE: [PATCH] nfit: Collect shutdown status for NVDIMM_FAMILY_HYPERV

[Dexuan Cui]

> From: Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>
> Sent: Wednesday, January 30, 2019 11:38 AM
> 
> On Wed, Jan 30, 2019 at 06:48:40PM +0000, Dexuan Cui wrote:
> >
> > Let's expose the info to the userspace (e.g. ntctl) via sysfs.
> 
> If you add a new sysfs file, you need to add a new Documentation/ABI/
> update as well :(

It's an existing sysfs node, which was originally added by Dan in Sep 2018: 
/sys/bus/nd/devices/nmem0/nfit/dirty_shutdown. 

Before this patch, the node doesn't appear when Linux runs on Hyper-V,
and with this patch, the node can appear now.

However, indeed, the node and the other related nodes have not been
documented in Documentation/ABI/testing/sysfs-bus-nfit yet.

I suppose Dan would add that?

Thanks,
-- Dexuan