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From: Dave Hansen <dave@linux.vnet.ibm.com>
To: Nathan Lynch <ntl@pobox.com>
Cc: "Serge E. Hallyn" <serue@us.ibm.com>,
	containers <containers@lists.linux-foundation.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	hch@infradead.org, Ingo Molnar <mingo@elte.hu>,
	Alexey Dobriyan <adobriyan@gmail.com>
Subject: Re: [RFC][PATCH 8/8] check files for checkpointability
Date: Mon, 02 Mar 2009 09:30:52 -0800	[thread overview]
Message-ID: <1236015052.26788.471.camel@nimitz> (raw)
In-Reply-To: <20090302112247.76bb3662@thinkcentre.lan>

On Mon, 2009-03-02 at 11:22 -0600, Nathan Lynch wrote:
> No.. I mean what if a process 1234 does
> 
> f = fopen("/proc/1234/stat", "r");
> 
> and is then checkpointed.  Can that path be resolved during restart,
> before pid 1234 is alive?

Heh, that's a good one.

It does mean that we can't do restore like this:

	for_each_cr_task()
		restore_task_struct()
		restore_files()
		...

We have to do:

	for_each_cr_task()
		restore_task_struct()
	for_each_cr_task()
		restore_files()


-- Dave


  reply	other threads:[~2009-03-02 17:31 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-27 20:34 [RFC][PATCH 1/8] kill '_data' in cr_hdr_fd_data name Dave Hansen
2009-02-27 20:34 ` [RFC][PATCH 2/8] breakout fdinfo sprintf() into its own function Dave Hansen
2009-02-27 20:56   ` Vegard Nossum
2009-02-27 21:23     ` Dave Hansen
2009-02-27 20:34 ` [RFC][PATCH 3/8] create fs flags to mark c/r supported fs's Dave Hansen
2009-02-27 21:16   ` Alexey Dobriyan
2009-02-27 21:20     ` Dave Hansen
2009-02-27 20:34 ` [RFC][PATCH 4/8] file c/r: expose functions to query fs support Dave Hansen
2009-02-27 21:14   ` Sukadev Bhattiprolu
2009-02-27 21:24     ` Dave Hansen
2009-02-27 21:32       ` Dave Hansen
2009-02-28  1:33   ` Sukadev Bhattiprolu
2009-02-27 20:34 ` [RFC][PATCH 5/8] add f_op for checkpointability Dave Hansen
2009-02-28  2:14   ` Sukadev Bhattiprolu
2009-02-28  2:51     ` Dave Hansen
2009-02-28 20:53   ` Christoph Hellwig
2009-02-28 21:37     ` Dave Hansen
2009-03-01 15:19       ` Serge E. Hallyn
2009-03-02 17:05     ` Dave Hansen
2009-03-03 13:15       ` Christoph Hellwig
2009-03-20 21:13         ` Dave Hansen
2009-03-20 21:30           ` Oren Laadan
2009-02-27 20:34 ` [RFC][PATCH 6/8] mark /dev/null and zero as checkpointable Dave Hansen
2009-02-27 20:34 ` [RFC][PATCH 7/8] add c/r info to fdinfo Dave Hansen
2009-02-27 20:34 ` [RFC][PATCH 8/8] check files for checkpointability Dave Hansen
2009-02-28  2:57   ` Sukadev Bhattiprolu
2009-03-01 17:00     ` Serge E. Hallyn
2009-03-04 23:41     ` Dave Hansen
2009-03-01 19:43   ` Serge E. Hallyn
2009-03-02 13:37   ` Serge E. Hallyn
2009-03-02 15:56     ` Dave Hansen
2009-03-02 15:59     ` Nathan Lynch
2009-03-02 16:27       ` Dave Hansen
2009-03-02 17:22         ` Nathan Lynch
2009-03-02 17:30           ` Dave Hansen [this message]
2009-03-02 17:44             ` Serge E. Hallyn
2009-03-02 17:58               ` Dave Hansen
2009-03-02 18:13               ` Dave Hansen
2009-03-02 18:35                 ` Serge E. Hallyn
2009-03-05  8:20                 ` Cedric Le Goater
2009-03-02 16:28       ` Serge E. Hallyn

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