doing a callback from the kernel to userspace

From: Sebastian Heidl (heidl@zib.de)
Date: Mon Nov 12 2001 - 12:05:05 EST

Hi,

I read some of the signaling code and must admit that I could not extract the
necessary information from it. Ideally I'd like to call a user-supplied function
having just a pointer to this function and say the task_struct of the owning
process.
What steps are needed to savely do the callback ? (How) can I retrieve the
necessary information from the task_struct ?

any pointers are welcome
_sh_

PS: Yes, I really do need this as signals form the kernel to userspace add to
    much latency (10 to 20 usecs) and I want to avoid waiting in a system call.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

This archive was generated by hypermail 2b29 : Thu Nov 15 2001 - 21:00:29 EST