Do the changes to cpumask using sched_setaffinity() take place immediately

Posted by Sukanto on Stack Overflow See other posts from Stack Overflow or by Sukanto
Published on 2010-04-01T10:01:19Z Indexed on 2010/04/01 10:03 UTC
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thread

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linux-kernel

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affinity

I am writing a linux kernel module that needs to pin two threads on two different cpus. I am planning to use sched_setaffinity() after exporting it in the kernel. Is there any other exported function for the same ?

Also, if I set only 1 CPU in the cpumask, will the thread be moved to that cpu with immediate effect ? If not, how do I enforce the same ? Will it help to call schedule() just after sched_setaffinity() ?

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