Re: [RFC PATCH 4/8] thp: Add thp_get_unmapped_area_vmflags()

From: Edgecombe, Rick P
Date: Fri Feb 16 2024 - 17:21:25 EST


On Fri, 2024-02-16 at 14:59 +0200, Kirill A. Shutemov wrote:
> On Thu, Feb 15, 2024 at 03:13:28PM -0800, Rick Edgecombe wrote:
> > +unsigned long thp_get_unmapped_area(struct file *filp, unsigned
> > long addr,
> > +               unsigned long len, unsigned long pgoff, unsigned
> > long flags)
> > +{
> > +       return thp_get_unmapped_area_vmflags(filp, addr, len,
> > pgoff, flags, 0);
> >   }
> >   EXPORT_SYMBOL_GPL(thp_get_unmapped_area);
>
> Again, static inline should be fine.

Not sure if the diff might be a bit misleading here, the signature of
thp_get_unmapped_area() didn't actually change.

If thp_get_unmapped_area() is made into a static inline, then
thp_get_unmapped_area_vmflags() would need to be exported instead so it
could be used in some modules. Unlike get_unmapped_area()
thp_get_unmapped_area is actually is used that way.

Better to export the more limited version?