rcu: Add mutex for rcu boost kthread spawning and affinity setting

Browse source

As we handle parallel CPU bringup, we will need to take care to avoid
spawning multiple boost threads, or race conditions when setting their
affinity. Spotted by Paul McKenney.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

...

This commit is contained in:

David Woodhouse 2021-12-08 23:41:53 +00:00 • committed by Paul E. McKenney

parent 150154aae4

commit 218b957a69

3 changed files with 12 additions and 2 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

kernel/rcu/tree.c

View file

3

kernel/rcu/tree.h

View file

10

kernel/rcu/tree_plugin.h

View file