Re: [PATCH 5/9] cr: capabilities: define checkpoint and restore fns

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Quoting Andrew G. Morgan (morgan@xxxxxxxxxx):
> On Mon, Jun 1, 2009 at 6:35 AM, Serge E. Hallyn <serue@xxxxxxxxxx> wrote:
> >> > I'll put in a commented BUILD_BUG_ON like Alexey suggests - does that
> >> > suffice?
> 
> I can't speak for other subsystems, but it seems to me as if for the
> capabilities, I'd want to create something like this in
> include/linux/capabilities.h
> 
> typedef struct checkpoint_caps_s {
>    /* what goes in here is the capability code's business */
> } checkpoint_caps_t;

Sigh - Did a patch this way, but the problem is userspace needs to be
able to parse the checkpoint image, so it needs to know what this struct
looks like.  So if I put it the struct definition
include/linux/capability.h, I run into a whole new set of problems
trying to compile a userspace program to do a sys_restart().

So I went part-way to what you suggested in the patchset I'm about to
send out (please see patch 6/8).  I think the caps code does look
nicer in this new version.

thanks,
-serge
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