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

[Masami Hiramatsu]

(2011/04/01 23:37), Srikar Dronamraju wrote:
> Loops through the filters callbacks of currently registered
> consumers to see if any consumer is interested in tracing this task.
> 
> Signed-off-by: Srikar Dronamraju <srikar@xxxxxxxxxxxxxxxxxx>
> ---
>  kernel/uprobes.c |   17 +++++++++++++++++
>  1 files changed, 17 insertions(+), 0 deletions(-)
> 
> diff --git a/kernel/uprobes.c b/kernel/uprobes.c
> index c950f13..62ccb56 100644
> --- a/kernel/uprobes.c
> +++ b/kernel/uprobes.c
> @@ -450,6 +450,23 @@ static void handler_chain(struct uprobe *uprobe, struct pt_regs *regs)
>  	up_read(&uprobe->consumer_rwsem);
>  }
>  
> +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...

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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