Re: [PATCH 08/16] mm/nommu: switch do_mmap_private to kernel_read

[Christoph Hellwig <hch@xxxxxx>]

On Wed, Aug 30, 2017 at 04:41:28PM +0100, Al Viro wrote:
> On Wed, Aug 30, 2017 at 04:59:59PM +0200, Christoph Hellwig wrote:
> > -		fpos = vma->vm_pgoff;
> > -		fpos <<= PAGE_SHIFT;
> 
> > +		loff_t fpos = vma->vm_pgoff << PAGE_SHIFT;
> 
> Umm...  Are you sure it's OK on 32bit hosts?

It's not.  Fixed.