It's great, Thanks!

	Lai Jiangshan.


Reviewed-by: Lai Jiangshan <laijs@cn.fujitsu.com>

Paul Menage wrote:

quoted text
> - allocate an array of single pages rather than a single kmalloc() region

I will send a patch for it in few days.

quoted text
> +
> +static void *cgroup_tasks_start(struct seq_file *s, loff_t *pos)
>  {
> -	int cnt = 0;
> -	int i;
> +	/*
> +	 * Initially we receive a position value that corresponds to
> +	 * one more than the last pid shown (or 0 on the first call or
> +	 * after a seek to the start). Use a binary-search to find the
> +	 * next pid to display, if any
> +	 */
> +	struct cgroup *cgrp = s->private;
> +	int index = 0, pid = *pos;
> +	int *iter;

use pid_t instead of int (include other functions)

quoted text
> +
> +	down_read(&cgrp->pids_mutex);
> +	if (pid) {
> +		int end = cgrp->pids_length;
> +		int i;

int i; unused.

quoted text
> +		while (index < end) {
> +			int mid = (index + end) / 2;
> +			if (cgrp->tasks_pids[mid] == pid) {
> +				index = mid;
> +				break;
> +			} else if (cgrp->tasks_pids[mid] <= pid)

(cgrp->tasks_pids[mid] <= pid) ===> (cgrp->tasks_pids[mid] < pid)

quoted text
> +				index = mid + 1;
> +			else
> +				end = mid;
> +		}
> +	}

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