Re: [PATCH RFC/RFT v2 1/2] mm: helper `is_shadow_stack_vma` to check shadow stack vma

[Deepak Gupta]

On Thu, Oct 17, 2024 at 12:22:02PM +0100, Mark Brown wrote:
> On Wed, Oct 16, 2024 at 02:57:33PM -0700, Deepak Gupta wrote:
> > VM_SHADOW_STACK (alias to VM_HIGH_ARCH_5) is used to encode shadow stack
> > VMA on three architectures (x86 shadow stack, arm GCS and RISC-V shadow
> > stack). In case architecture doesn't implement shadow stack, it's VM_NONE
> > Introducing a helper `is_shadow_stack_vma` to determine shadow stack vma
> > or not.
>
> Reviewed-by: Mark Brown <broonie@xxxxxxxxxx>
>
> though
>
> > @@ -387,7 +392,6 @@ static inline bool is_data_mapping(vm_flags_t flags)
> >  	return (flags & (VM_WRITE | VM_SHARED | VM_STACK)) == VM_WRITE;
> >  }
> >
> > -
> >  static inline void vma_iter_config(struct vma_iterator *vmi,
> >  		unsigned long index, unsigned long last)
> >  {
>
> Unrelated (but reasonable) whitespace change.

Yeah I'll put that in commit message indicating this clean up in next version.