Juneja Kapil wrote:
Hi Patrick,
That sounds pretty reasonable. Is that code available somewhere?
>
We are working on licensing aspects and will be glad to share the code
as and when we get approval.
OK thanks.
Can you describe the race scenario mentioned by you?
>>
Very simple:
CPU0 CPU1
timer goes off
refresh_timer: mod_timer, rearm death_by_timeout()
timer goes off again
Using del_timer prevents us from rearming the timer if it
already went off.
Thanks for the explanation. I was probably only thinking of the non-SMP
scenarios. However, I feel that if this cannot be done this simple way,
then we are in a bit trouble because our need is to make
nf_ct_refresh_acct work independent of the existing timer being dead or
alive.
While we think about a possible alternatives on respin of patch/control
module, can you provide some insight into any other alternatives.
The IPS_FIXED_TIMEOUT_BIT should work I guess. It skips
timer updates, but still does accounting (at least in
the current kernel version).
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