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