Re: [PATCH 12/24] task_diag: add a new group to get tasks memory mappings (v2)

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On 07/06, Andrey Vagin wrote:
>
> +static int task_vma_num(struct mm_struct *mm)
> +{
> +	struct vm_area_struct *vma;
> +	int n_vma = 0;
> +
> +	if (!mm || !atomic_inc_not_zero(&mm->mm_users))
> +		return 0;
> +
> +	down_read(&mm->mmap_sem);
> +	for (vma = mm->mmap; vma; vma = vma->vm_next, n_vma++)
> +		;
> +
> +	up_read(&mm->mmap_sem);
> +	mmput(mm);
> +
> +	return n_vma;
> +}

Hmm. How about

	int task_vma_num(struct mm_struct *mm)
	{
		return mm->map_count;
	}

?

Oleg.

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