Query on mechanisms to communicate between kernel modules in Linux

[Neil Thomas]

 Hi,

I am just a beginner. I have tried procfs, Netlink socket to communicate
between user space and kernel space and it works fine.

I am developing a monitoring utility to trace the VFS operation and find
the frequency of VFS function calls. This monitoring utility runs in kernel
space. We have to record the occurrence of each  VFS function calls (like
vfs_open(), vfs_read()).  I don't know  which is best mechanism to report
this VFS event to the monitoring utility.

Could anyone please suggest the best mechanism to transfer data frequently
between kernel modules.

Thank you!


On Thu, Feb 8, 2018 at 7:56 PM, Greg KH <greg at kroah.com> wrote:

> On Thu, Feb 08, 2018 at 09:39:31AM +0530, Neil Thomas wrote:
> > Hi,
> >
> > I want to share information between two kernel modules (Kernel version
> 4.0
> > or above). What are the ways of communication between kernel modules in
> > Linux.
>
> What have you tried that did not work out?
>
> > Please list out the available mechanisms to do this.
>
> This feels like a homework question to me, are you sure you are not just
> asking for us to do your work for you?  :)
>
> thanks,
>
> greg k-h
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20180208/efbc1d74/attachment.html>