Re: [PATCH 3/5] mm, shmem: Add shmem_vma() helper

[Oleg Nesterov]

On 07/22, Jerome Marchand wrote:
>
> +bool shmem_vma(struct vm_area_struct *vma)
> +{
> +	return (vma->vm_file &&
> +		vma->vm_file->f_dentry->d_inode->i_mapping->backing_dev_info
> +		== &shmem_backing_dev_info);
> +
> +}

Cosmetic nit, it seems that this helper could simply do

	return vma->vm_file && shmem_mapping(file_inode(vma->vm_file));

Oleg.

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