Re: [PATCH 12/24] task_diag: add a new group to get tasks memory mappings (v2)
- From
- Oleg Nesterov <hidden>
- Date
- 2015-07-14 18:10:42
- Also in
- lkml
- Reply to
- Andrey Vagin, 2015-07-06
On 07/06, Andrey Vagin wrote:
quoted hunk ↗ jump to hunk
+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.