From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Serge E. Hallyn" <serue-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
Subject: Re: [RFC v14][PATCH 04/54] General infrastructure for checkpoint
	restart
Date: Wed, 29 Apr 2009 12:12:35 -0500
Message-ID: <20090429171235.GA3199@us.ibm.com>
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To: Oren Laadan <orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
Cc: containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, Alexey Dobriyan <adobriyan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Dave Hansen <dave-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
List-Id: containers.vger.kernel.org

Quoting Oren Laadan (orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org):
>  asmlinkage long sys_checkpoint(pid_t pid, int fd, unsigned long flags)
>  {
> -	pr_debug("sys_checkpoint not implemented yet\n");
> -	return -ENOSYS;
> +	struct ckpt_ctx *ctx;
> +	int ret;
> +
> +	/* no flags for now */
> +	if (flags)
> +		return -EINVAL;
> +
> +	if (pid == 0)
> +		pid = current->pid;

This uses the global pid, but get_container() later will do
	task = find_task_by_vpid(pid);

-serge