2012/8/16 Amarnath Revanna <amarnath.reva...@gmail.com> > 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 <kernel.vi...@gmail.com>wrote: > >> Hi, >> >> On Tue, Aug 14, 2012 at 9:34 AM, Mulyadi Santosa >> <mulyadi.sant...@gmail.com> wrote: >> > Hi.. :) >> > >> > On Tue, Aug 14, 2012 at 9:14 AM, 王哲 <wangzhe5...@gmail.com> wrote: >> >> 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 >> >> > >> > -- >> > regards, >> > >> > Mulyadi Santosa >> > Freelance Linux trainer and consultant >> > >> > blog: the-hydra.blogspot.com >> > training: mulyaditraining.blogspot.com >> > >> > _______________________________________________ >> > Kernelnewbies mailing list >> > Kernelnewbies@kernelnewbies.org >> > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies >> >> _______________________________________________ >> Kernelnewbies mailing list >> Kernelnewbies@kernelnewbies.org >> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies >> > >
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