Re: [RFC PATCH 1/3] xarray: Introduce devm_xa_init()

From: Matthew Wilcox
Date: Fri Jul 08 2022 - 11:21:18 EST


On Fri, Jul 08, 2022 at 07:59:22AM -0700, Ira Weiny wrote:
> On Fri, Jul 08, 2022 at 03:53:50PM +0100, Matthew Wilcox wrote:
> > On Tue, Jul 05, 2022 at 04:21:57PM -0700, ira.weiny@xxxxxxxxx wrote:
> > > The main issue I see with this is defining devm_xa_init() in device.h.
> > > This makes sense because a device is required to use the call. However,
> > > I'm worried about if users will find the call there vs including it in
> > > xarray.h?
> >
> > Honestly, I don't want users to find it. This only makes sense if you're
> > already bought in to the devm cult. I worry people will think that
> > they don't need to do anything else; that everything will be magically
> > freed for them, and we'll leak the objects pointed to from the xarray.
> > I don't even like having xa_destroy() in the API, because of exactly this.
> >
>
> Fair enough. Are you ok with the concept though?

I'd rather have it in one place than open-coded in two.