Linux Module to print number of CPU's

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We can look at /proc/cpuinfo to find out the number of processors present in Linux from user space.


What if we want to find out the number of cpus in kernel module. num_online_cpus() function can give the number of CPU's which are online.

Code:

Output:

References:

 https://stackoverflow.com/questions/43171805/find-number-of-cpus-in-linux-kernel

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