Re: [PATCH 09/10] uprobes: Change prepare_uretprobe() to (try to) flush the dead frames

[Srikar Dronamraju]

* Oleg Nesterov <oleg@xxxxxxxxxx> [2015-05-04 14:49:22]:

> Change prepare_uretprobe() to flush the !arch_uretprobe_is_alive()
> return_instance's. This is not needed correctness-wise, but can help
> to avoid the failure caused by MAX_URETPROBE_DEPTH.
> 
> Note: in this case arch_uretprobe_is_alive() can be false positive,
> the stack can grow after longjmp(). Unfortunately, the kernel can't
> 100% solve this problem, but see the next patch.
> 
> Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>
> ---
>  kernel/events/uprobes.c |   13 +++++++++++++

Looks good to me.

Acked-by: Srikar Dronamraju <srikar@xxxxxxxxxxxxxxxxxx>
-- 
Thanks and Regards
Srikar Dronamraju

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