On 7/14/15 2:08 PM, Oleg Nesterov wrote:
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; } ?
makes sense. Thanks for the pointer. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
