Bill Huey (hui) <[email protected]> writes:
> On Wed, Sep 20, 2006 at 04:19:07PM +0200, Ingo Molnar wrote:
>> I'm pleased to announce the 2.6.18-rt1 tree, which can be downloaded
>> from the usual place:
> ...
>> as usual, bugreports, fixes and suggestions are welcome,
>
> Speaking of which...
>
> This patch moves put_task_struct() reaping into a thread instead of an
> RCU callback function as discussed with Esben publically and Ingo privately:
Stupid question.
Why does the rt tree make all calls to put_task_struct an rcu action?
We only need the rcu callback from kernel/exit.c
Nothing else needs those semantics.
I agree that put_task_struct is the most common point so this is unlikely
to remove your issues with rcu callbacks but it just seems completely backwards
to increase the number of rcu callbacks in the rt tree.
Eric
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