Re: Multiprocessor safe locking calls.

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Look at include/asm-i386/atomic.h. All architectures provide similar
calls in kernel space AFAIK.

Refer to the kernel hacking guide for some more info on these.

- Vamsi

On Tue, May 28, 2002 at 04:23:18PM +0530, Sharath Ballal wrote:
> Hi,
> 
> I had this question.  Are there any subroutines provided in linux which
> allow multiprocessor safe atomic operations on integers.  Say if i have to
> increment or decrement a variable atomically or read the value of a
> variable atomically.  Also, i am looking at calls which are not pthread
> calls.
> 
> Cheers,
> Sharath.
> 
> --
> Kernelnewbies: Help each other learn about the Linux kernel.
> Archive:       http://mail.nl.linux.org/kernelnewbies/
> FAQ:           http://kernelnewbies.org/faq/

-- 
Vamsi Krishna S.
Linux Technology Center,
IBM Software Lab, Bangalore.
Ph: +91 80 5044959
Internet: vamsi@in.ibm.com
--
Kernelnewbies: Help each other learn about the Linux kernel.
Archive:       http://mail.nl.linux.org/kernelnewbies/
FAQ:           http://kernelnewbies.org/faq/


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