Re: [resend v1 4/5] drivers/nvme/host/core.c: Convert to use disk_set_capacity

From: Singh, Balbir
Date: Tue Jan 21 2020 - 14:52:22 EST


On Wed, 2020-01-08 at 16:04 +0100, hch@xxxxxx wrote:
> On Mon, Jan 06, 2020 at 12:46:26AM +0000, Singh, Balbir wrote:
> > On Sat, 2020-01-04 at 22:27 +0000, Chaitanya Kulkarni wrote:
> > > Quick question here if user executes nvme ns-rescan /dev/nvme1
> > > will following code result in triggering uevent(s) for
> > > the namespace(s( for which there is no change in the size ?
> > >
> > > If so is that an expected behavior ?
> > >
> >
> > My old code had a check to see if old_capacity != new_capacity as well.
> > I can redo those bits if needed.
> >
> > The expected behaviour is not clear, but the functionality is not broken,
> > user
> > space should be able to deal with a resize event where the previous
> > capacity
> > == new capacity IMHO.
>
> I think it makes sense to not bother with a notification unless there
> is an actual change.

[Sorry for the delayed response, just back from LCA]

Agreed!

Balbir Singh