Re: [PATCH v25 21/30] mm: Re-introduce vm_flags to do_mmap()

[Yu, Yu-cheng]

On 4/23/2021 3:31 AM, Kirill A. Shutemov wrote:
> On Thu, Apr 15, 2021 at 03:14:10PM -0700, Yu-cheng Yu wrote:
> > There was no more caller passing vm_flags to do_mmap(), and vm_flags was
> > removed from the function's input by:
> >
> >      commit 45e55300f114 ("mm: remove unnecessary wrapper function do_mmap_pgoff()").
> >
> > There is a new user now.  Shadow stack allocation passes VM_SHADOW_STACK to
> > do_mmap().  Thus, re-introduce vm_flags to do_mmap().
> >
> > Signed-off-by: Yu-cheng Yu <yu-cheng.yu@xxxxxxxxx>
> > Reviewed-by: Peter Collingbourne <pcc@xxxxxxxxxx>
> > Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>
> > Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> > Cc: Oleg Nesterov <oleg@xxxxxxxxxx>
> > Cc: linux-mm@xxxxxxxxx
>
> Reviewed-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>

Thanks for reviewing.

Yu-cheng