Re: [resend v1 1/5] block/genhd: Notify udev about capacity change

From: Singh, Balbir
Date: Fri Jan 03 2020 - 23:44:36 EST


On Fri, 2020-01-03 at 06:16 +0000, Chaitanya Kulkarni wrote:
> On 01/01/2020 11:53 PM, Balbir Singh wrote:
> > Allow block/genhd to notify user space (via udev) about disk size changes
> > using a new helper disk_set_capacity(), which is a wrapper on top
> > of set_capacity(). disk_set_capacity() will only notify via udev if
> > the current capacity or the target capacity is not zero.
> >
> > Suggested-by: Christoph Hellwig<hch@xxxxxx>
> > Signed-off-by: Someswarudu Sangaraju<ssomesh@xxxxxxxxxx>
> > Signed-off-by: Balbir Singh<sblbir@xxxxxxxxxx>
> > ---
>
> Since disk_set_capacity(() is on the same line as set_capacity()
> we should follow the same convention, which is :-
>
> 1. Avoid exporting symbol.
> 2. Mark new function in-line.
>
> Unless there is a very specific reason for breaking the pattern.
>

I don't see the benefit of marking it as inline. I expect this code to be
potentially expanded to provide callbacks into file system code for expansion
(something you brought up), marking it as inline might be a limitation.

I'd rather not clutter the headers with this code, but I am open to what the
maintainers think as well.

Balbir Singh.