Hi!
> I'm keen to see if we can merge Suspend2's freezer implementation after
> 2.6.11. Does that conflict with any of your intended changes? If it
> doesn't, I'll submit a patch for review/merge as quickly as I can.
Freezer is very independend, and no, I do not plan any changes in that area.
> The main change involves the introduction of a new SYNCTHREAD flag. We
> use this to avoid deadlocking over processes that are running sys_sync
> and siblings. Processes that enter those routines get the flag added,
> and it's removed when they exit the sync routine. We then freeze in four
> stages:
Is SYNCTHREAD neccessary for me, too, or is it needed for suspend2, only?
> 1) Freeze user space threads without SYNCTHREAD set;
> 2) Freeze user space threads with SYNCTHREAD set;
> 3) Run our own sys_sync in case no one else was syncing
> 4) Freeze kernel space threads without NOFREEZE set.
>
> I'd also like to look at your SMP support and see if we can improve
> compatibility there at the same time.
Why not... But parts of smp support really need to be in assembly, and
they are not, neither in swsusp nor in suspend2...
> Finally I'd like to merge the support for freezer flags on workqueues.
Pavel
--
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