Re: insmod: unresolved symbol sys_shmat

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On Mon, Nov 24, 2003 at 01:46:24PM +0100, Juergen Oberhofer wrote:

> I.e. there is no way to use shared memory and semaphores in a
> module?

There is no way to use the user space mechanisms. There are
equivalent, specifically adapted to the kernel environment
mechanisms. For example, a kernel semaphore (which is actually a
mutex) or a spinlock. For shared memory, you can just use a shared
variable or buffer, depending on your needs. 

If you want shared memory (or mutual exclusion) between the kernel and
a user space process, that's where the fun starts. 

Cheers, 
Muli 
-- 
Muli Ben-Yehuda
http://www.mulix.org | http://mulix.livejournal.com/

"the nucleus of linux oscillates my world" - gccbot@#offtopic

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