On Sat, Oct 04, 2014 at 12:16:51AM -0700, Christoph Hellwig wrote:
> > +int
> > +xfs_init_utf8_module(struct xfs_mount *mp)
> > +{
> > + request_module("utf8norm");
> > +
> > + spin_lock(&utf8norm_lock);
> > + if (utf8norm_initialized) {
> > + spin_unlock(&utf8norm_lock);
> > + return 0;
> > + }
> > +
> > + utf8version_is_supported_func = symbol_get(utf8version_is_supported);
> > + if (!utf8version_is_supported_func)
> > + goto error;
> > +
> > + utf8nfkdi_func = symbol_get(utf8nfkdi);
> > + if (!utf8nfkdi_func)
> > + goto error;
>
> Please export a structure with a function pointes so that we just need
> a single symbol_get call. I'd have to look up how symbol_get works,
> but unless there's something that speaks against this it might be
> simpler to than just do a symbol_get per mounst structure that uses
> utf8 and can point to that structure so that we don't have to add
> additional reference counting infrastructure around it.
Sure, sounds good. I believe I've seen the approach you are suggesting
used elsewhere and it works fine.
-Ben
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