Balbir Singh wrote:
> Paul (??) Menage wrote:
>> On 7/17/07, Balbir Singh <[EMAIL PROTECTED]> wrote:
>>> without too much knowledge of each other. BTW, what are the semantics
>>> of css_put() is it expected to free the container/run the release agent
>>> when the reference count of the container_subsys_state drops to zero?
>>>
>> If you css_put() the last reference on a subsystem state object and
>> the associated container is marked as notify_on_release, then
>> check_for_release() is called which does a more full check of whether
>> the container is releasable. If it is, a workqueue task is scheduled
>> to run the userspace release agent, which can then do anything it
>> wants, including potentially deleting the empty container.
>>
>
> Ok.. so my problem still remains, how do I get a non-blocking atomic
> reference increment/decrement routine, that would prevent my
> container from being deleted?
>
> I don't find cpusets using css_put(). I was hoping that we could
> alter css_* would provide the functionality I need.
>
>
Thinking out loud again, can we add can_destory() callbacks?
--
Warm Regards,
Balbir Singh
Linux Technology Center
IBM, ISTL
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
