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Diffstat (limited to 'Documentation/RCU/rcu.rst')
| -rw-r--r-- | Documentation/RCU/rcu.rst | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/RCU/rcu.rst b/Documentation/RCU/rcu.rst index 3cfe01ba9a49..bf6617b330a7 100644 --- a/Documentation/RCU/rcu.rst +++ b/Documentation/RCU/rcu.rst @@ -77,15 +77,17 @@ Frequently Asked Questions search for the string "Patent" in Documentation/RCU/RTFP.txt to find them. Of these, one was allowed to lapse by the assignee, and the others have been contributed to the Linux kernel under GPL. + Many (but not all) have long since expired. There are now also LGPL implementations of user-level RCU available (https://liburcu.org/). - I hear that RCU needs work in order to support realtime kernels? - Realtime-friendly RCU can be enabled via the CONFIG_PREEMPT_RCU + Realtime-friendly RCU are enabled via the CONFIG_PREEMPTION kernel configuration parameter. - Where can I find more information on RCU? See the Documentation/RCU/RTFP.txt file. - Or point your browser at (http://www.rdrop.com/users/paulmck/RCU/). + Or point your browser at (https://docs.google.com/document/d/1X0lThx8OK0ZgLMqVoXiR4ZrGURHrXK6NyLRbeXe3Xac/edit) + or (https://docs.google.com/document/d/1GCdQC8SDbb54W1shjEXqGZ0Rq8a6kIeYutdSIajfpLA/edit?usp=sharing). |