LWN.net Logo

Per-CPU variables and the realtime tree

Per-CPU variables and the realtime tree

Posted Dec 14, 2011 16:31 UTC (Wed) by robert.berger (subscriber, #69236)
Parent article: Per-CPU variables and the realtime tree

So what is done in a non real-time kernel to avoid migration of a process which is in the middle of manipulating a per-CPU variable?


(Log in to post comments)

Per-CPU variables and the realtime tree

Posted Dec 14, 2011 17:17 UTC (Wed) by corbet (editor, #1) [Link]

Preemption is disabled; that naturally disables migration as well.

Copyright © 2013, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds