2012/8/16 Amarnath Revanna [off-list ref]

Hi Vijay,

Is this a loadable kernel module or a built-in module?
If it is a loadable module, everything still remains in the memory without
being freed.

Functions and data defined with __init gets freed after their execution
only if these are part of built-in kernel modules.

In your case, if the module is a loadable one, you can still access the
print_k() from hello_exit() as its still residing in memory.

Regards,
-Amar

   Hi Amar

       Thank you  very much  for reply. I often write loadable modules,but
know little about
built-in modules,can you tell something about built-in modules? or,how i
can take a built-in
module into the kernel?

On Thu, Aug 16, 2012 at 5:23 PM, Vijay Chauhan [off-list ref]wrote:

quoted

Hi,

On Tue, Aug 14, 2012 at 9:34 AM, Mulyadi Santosa
[off-list ref] wrote:

quoted

Hi.. :)

On Tue, Aug 14, 2012 at 9:14 AM, ?? [off-list ref] wrote:

quoted

i use the __init for function print_k.
in my opinion  after the fisrt invoking the print_k in the hello_init.
the memory of print_k will be freed,and the second invoking will
not be executed.but the result of second invoking is executing .

why?

because you're still in module_init.... :)

right after modul init stage is done, _init marked function is thrown

away...


Even if we call  print_k() function inside hello_exit, it still works.
At that point __init hello_init execution is over. How its still
working?


Regards,
Vijay

quoted

--
regards,

Mulyadi Santosa
Freelance Linux trainer and consultant

blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com

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