From: "Serge E. Hallyn" <serue@us.ibm.com>
To: Dave Hansen <dave@linux.vnet.ibm.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>,
Christoph Hellwig <hch@infradead.org>,
containers <containers@lists.linux-foundation.org>,
Ingo Molnar <mingo@elte.hu>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [RFC][PATCH 00/11] track files for checkpointability
Date: Fri, 6 Mar 2009 10:23:37 -0600 [thread overview]
Message-ID: <20090306162337.GA3040@us.ibm.com> (raw)
In-Reply-To: <1236354509.10626.29.camel@nimitz>
Quoting Dave Hansen (dave@linux.vnet.ibm.com):
> On Fri, 2009-03-06 at 08:34 -0600, Serge E. Hallyn wrote:
> > > > With time the amount of stuff C/R won't support will approach zero,
> > > > but the infrastructure for "checkpointable" will stay constant.
> > > > If it's too much right now, it will be way too much in future.
> > >
> > > What have you seen in OpenVZ? Do new things that are not checkpointable
> > > pop up very often?
> >
> > Realistically, do you think the uncheckpointable stuff would catch a
> > brand-new unsupported feature? If it has a file interface then I
> > suppose it would. Well, might. I wouldn't be surprised if the authors
> > would cut and paste enough code to paste the .checkpoint =
> > generic_file_checkpoint line :)
>
> Yeah, that's true. Us maintainers would probably need to keep an eye on
> that.
Which imo is fine, but my question is whether that leaves any actual
value in the persistent per-resource uncheckpointable flag.
-serge
next prev parent reply other threads:[~2009-03-06 16:23 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-05 16:38 [RFC][PATCH 00/11] track files for checkpointability Dave Hansen
2009-03-05 16:38 ` [RFC][PATCH 01/11] kill '_data' in cr_hdr_fd_data name Dave Hansen
2009-03-05 16:38 ` [RFC][PATCH 02/11] breakout fdinfo sprintf() into its own function Dave Hansen
2009-03-05 16:39 ` [RFC][PATCH 03/11] Introduce generic_file_checkpoint() Dave Hansen
2009-03-05 16:39 ` [RFC][PATCH 04/11] actually use f_op in checkpoint code Dave Hansen
2009-03-05 16:39 ` [RFC][PATCH 05/11] add generic checkpoint f_op to ext fses Dave Hansen
2009-03-13 2:50 ` Oren Laadan
2009-03-05 16:39 ` [RFC][PATCH 06/11] add checkpoint_file_generic() to /proc Dave Hansen
2009-03-05 16:39 ` [RFC][PATCH 07/11] file c/r: expose functions to query fs support Dave Hansen
2009-03-05 16:39 ` [RFC][PATCH 08/11] expose file checkpointability and reasoning in /proc Dave Hansen
2009-03-05 16:39 ` [RFC][PATCH 09/11] check files for checkpointability Dave Hansen
2009-03-09 17:38 ` Matt Helsley
2009-03-12 19:14 ` Dave Hansen
2009-03-05 16:39 ` [RFC][PATCH 10/11] add checkpoint/restart compile helper Dave Hansen
2009-03-05 16:39 ` [RFC][PATCH 11/11] optimize c/r check in dup_fd() Dave Hansen
2009-03-05 17:40 ` [RFC][PATCH 00/11] track files for checkpointability Alexey Dobriyan
2009-03-05 19:16 ` Dave Hansen
2009-03-05 21:08 ` Alexey Dobriyan
2009-03-05 21:27 ` Dave Hansen
2009-03-05 22:00 ` Alexey Dobriyan
2009-03-05 22:24 ` Dave Hansen
2009-03-06 14:34 ` Serge E. Hallyn
2009-03-06 15:48 ` Dave Hansen
2009-03-06 16:23 ` Serge E. Hallyn [this message]
2009-03-06 16:46 ` Dave Hansen
2009-03-06 18:24 ` Serge E. Hallyn
2009-03-06 19:42 ` Dave Hansen
2009-03-13 3:05 ` Oren Laadan
2009-03-06 15:08 ` Greg Kurz
2009-03-06 15:35 ` Serge E. Hallyn
2009-03-06 17:36 ` Cedric Le Goater
2009-03-06 18:30 ` Serge E. Hallyn
2009-03-11 7:51 ` Cedric Le Goater
2009-03-12 15:30 ` Serge E. Hallyn
2009-03-13 6:36 ` Ensuring c/r maintainability (WAS Re: [RFC][PATCH 00/11] track files for checkpointability) Matt Helsley
2009-03-13 17:53 ` Serge E. Hallyn
2009-03-05 19:44 ` [RFC][PATCH 00/11] track files for checkpointability Dave Hansen
2009-03-05 18:13 ` Serge E. Hallyn
2009-03-05 18:16 ` Dave Hansen
2009-03-10 15:57 ` Nathan Lynch
2009-03-10 16:00 ` Nathan Lynch
2009-03-10 16:23 ` Serge E. Hallyn
2009-03-10 16:20 ` Serge E. Hallyn
2009-03-10 17:23 ` Nathan Lynch
2009-03-10 17:45 ` Serge E. Hallyn
2009-03-10 17:47 ` Dave Hansen
2009-03-10 16:22 ` Dave Hansen
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