Re: [PATCH v3 2/2] livepatch: force transition process to finish

Petr Mladek
2017-11-01T15:32:07Z

On Tue 2017-10-31 12:48:53, Miroslav Benes wrote:
> If a task sleeps in a set of patched functions uninterruptedly, it could
> block the whole transition process indefinitely. Thus it may be useful
> to clear its TIF_PATCH_PENDING to allow the process to finish.
>
> Admin can do that now by writing to force sysfs attribute in livepatch
> sysfs directory. TIF_PATCH_PENDING is then cleared for all tasks and the
> transition can finish successfully.
>
> Important note! Use wisely. Admin must be sure that it is safe to
> execute such action. This means that it must be checked that by doing so
> the consistency model guarantees are not violated.
>
> Signed-off-by: Miroslav Benes <mbenes@suse.cz>

If no animals were harmed when developing this brute force then
feel free to use:

Reviewed-by: Petr Mladek <pmladek@suse.com>

Best Regards,
Petr