Problem of workqueue

[rohan puri]

On Fri, May 4, 2012 at 6:55 AM, 夏业添 <summerxyt at gmail.com> wrote:

> Hi Chetan,
>
> Thanks for reply and it works. And I want to verify some other things.
>
> Is it a good way to use workqueue to do this job: send data to user
> space through netlink socket from kernel?
>
> Thanks!
>
> 2012/5/4 Chetan Nanda <chetannanda at gmail.com>:
> >
> > On May 3, 2012 8:37 PM, "夏业添" <summerxyt at gmail.com> wrote:
> >>
> >> Hi,
> >>
> >> I want to use workqueue in my irq handler. Some materials say that I can
> >> use
> >>
> >>    INIT_WORK( &work, function, &data );
> >>
> >> to initialize work, whose type is struct work_struct, and data is
> >> something should be passed to function.
> >> however, it seems that now the macro INIT_WORK() only accept two
> >> parameters:&work and function.
> >>
> >> My problem is how to pass data to the function and why they change that
> >> macro?
> >>
> >> Thanks!
> >>
> > May be you are looking for something like this:
> >
> http://www.linuxforums.org/forum/kernel/183688-init_work-two-arguments.html
> >
> > ~chetan  _______________________________________________
> >> Kernelnewbies mailing list
> >> Kernelnewbies at kernelnewbies.org
> >> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies at kernelnewbies.org
> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>
Hi,
To send data from kernel space and user-space see kernel's notification
mechanism like fanotify which works on by creating an anonymous fd in the
user-space process's context which then might perform normal read() and
write() call to receive and send data to kernel.

- Rohan
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20120504/4c91d0cc/attachment.html