Re: [RFC] [PATCH] To improve kretprobe scalability

From: Abhishek Sagar
Date: Thu May 22 2008 - 03:07:52 EST

On 5/21/08, Srinivasa D S <srinivasa@xxxxxxxxxx> wrote:
> Solution:
> 1) Instead of having one global lock to protect kretprobe instances
> present in kretprobe object and kretprobe hash table. We will have two locks,
> one lock for protecting kretprobe hash table and another lock for kretporbe
> object.

Is it possible to get rid of the kretprobe hash table itself and lose
the kretprobe_lock? It seems like it is just doing a pid-to-instance
mapping. These return instances could be queued in the "current"
task_struct in a LIFO manner. Mutation to this per-task list can be
done with local irqs off...

Abhishek Sagar
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at