On Thu, 18 Nov 2021 23:23:39 -0800 Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote:
> On Fri, Nov 19, 2021 at 12:11:04PM +0800, Muchun Song wrote:
> > +
> > +/*
> > + * Obtain the private data passed by user through proc_create_data() or
> > + * related.
> > + */
> > +static inline void *pde_data(const struct inode *inode)
> > +{
> > + return inode->i_private;
> > +}
> > +
> > +#define PDE_DATA(i) pde_data(i)
>
> What is the point of pde_data?
It's a regular old C function, hence should be in lower case.
I assume the upper case thing is a holdover from when it was
implemented as a macro.
> If we really think changing to lower
> case is worth it (I don't think so, using upper case for getting at
> private data is a common idiom in file systems),
It is? How odd.
I find the upper-case thing to be actively misleading. It's mildly
surprising to discover that it's actually a plain old C function.
> we can just do that
> scripted in one go.
Yes, I'd like to see a followup patch which converts the current
PDE_DATA() callsites.
