Re: [PATCH v3 2.6.39-rc1-tip 26/26] 26: uprobes: filter chain

From: Masami Hiramatsu
Date: Wed Apr 06 2011 - 23:19:18 EST


(2011/04/07 7:41), Srikar Dronamraju wrote:
>>> +static bool filter_chain(struct uprobe *uprobe, struct task_struct *t)
>>> +{
>>> + struct uprobe_consumer *consumer;
>>> + bool ret = false;
>>> +
>>> + down_read(&uprobe->consumer_rwsem);
>>> + for (consumer = uprobe->consumers; consumer;
>>> + consumer = consumer->next) {
>>> + if (!consumer->filter || consumer->filter(consumer, t)) {
>>> + ret = true;
>>> + break;
>>> + }
>>> + }
>>> + up_read(&uprobe->consumer_rwsem);
>>> + return ret;
>>> +}
>>> +
>>
>> Where this function is called from ? This patch seems the last one of this series...
>>
>
> Sorry for the delayed reply, I was travelling to LFCS.
> Still I have to connect the filter from trace/perf probe.

I see, and I'd like to suggest you to separate that series
from this "uprobe" series. For upstream merge, indeed, we
need a consumer of the uprobe. However, it should be as simple
as possible, so that we can focus on reviewing uprobe itself.

> Thats listed as todo and thats the next thing I am planning to work on.

Interesting:) Could you tell us what the plan will introduce?
How will it be connected? how will we use it?

Thank you,

--
Masami HIRAMATSU
Software Platform Research Dept. Linux Technology Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: masami.hiramatsu.pt@xxxxxxxxxxx
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