> > > > I'm not sure of the correct way to get the required nameidata (to do a
quoted text
> > > > vfs_permission() call) from the file descriptor.  Can you give me a
> > > > tip there?
> > > 
> > > Could you point me at the right way of doing this?
> > 
> > You don't need nameidata for this at all.  Just call permission() with
> > a NULL nameidata.
> > 
> > Ugly API?  Yes, will be cleaned up if we manage to find some common
> > ground with the VFS maintainers.
> 
> As soon as I'm done with sysctls...

Can't you just do that independently (for now just put a
d_find_alias() in there and be done with it)?  If you fix every piece
of horrid code that you come across, it'll never be done...

Miklos
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