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

From: kirill.shutemov@xxxxxxxxxxxxxxx
Date: Sat Feb 17 2024 - 07:57:59 EST


On Fri, Feb 16, 2024 at 10:21:13PM +0000, Edgecombe, Rick P wrote:
> 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?

Okay, it is a valid point.

--
Kiryl Shutsemau / Kirill A. Shutemov