Re: [PATCH 10/30] cr: core stuff
From: Oren Laadan
Date: Tue Apr 14 2009 - 01:55:20 EST
Hi,
Serge E. Hallyn wrote:
> Quoting Alexey Dobriyan (adobriyan@xxxxxxxxx):
>
> Hi Alexey,
>
> as far as I can see, the main differences between this patch and the
> equivalent in Oren's tree are:
>
> 1. kernel auto-selects container init to freeze
Actually, this eliminates the possibility to checkpoint a subtree of
tasks, which (under some obvious constraints) can be a handy feature.
> 2. kernel freezes tasks
IMHO better to do it in userspace - that way userspace can accomplish
other tasks while tasks are frozen, such as snapshot the filesystem,
or block/unblock the network.
Is there a good argument to do it kernel ?
> 3. no objhash taking references
> 4. no hbuf
> 5. always require CAP_SYS_ADMIN
I'm now convinced (thanks, Serge!) that it's better not to require
this unless we strictly have to.
Oren.
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