diff options
Diffstat (limited to 'Documentation/RCU/rcu.txt')
-rw-r--r-- | Documentation/RCU/rcu.txt | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/Documentation/RCU/rcu.txt b/Documentation/RCU/rcu.txt index 7aa2002ade77..2a23523ce471 100644 --- a/Documentation/RCU/rcu.txt +++ b/Documentation/RCU/rcu.txt | |||
@@ -36,7 +36,7 @@ o How can the updater tell when a grace period has completed | |||
36 | executed in user mode, or executed in the idle loop, we can | 36 | executed in user mode, or executed in the idle loop, we can |
37 | safely free up that item. | 37 | safely free up that item. |
38 | 38 | ||
39 | Preemptible variants of RCU (CONFIG_PREEMPT_RCU) get the | 39 | Preemptible variants of RCU (CONFIG_TREE_PREEMPT_RCU) get the |
40 | same effect, but require that the readers manipulate CPU-local | 40 | same effect, but require that the readers manipulate CPU-local |
41 | counters. These counters allow limited types of blocking | 41 | counters. These counters allow limited types of blocking |
42 | within RCU read-side critical sections. SRCU also uses | 42 | within RCU read-side critical sections. SRCU also uses |
@@ -79,10 +79,10 @@ o I hear that RCU is patented? What is with that? | |||
79 | o I hear that RCU needs work in order to support realtime kernels? | 79 | o I hear that RCU needs work in order to support realtime kernels? |
80 | 80 | ||
81 | This work is largely completed. Realtime-friendly RCU can be | 81 | This work is largely completed. Realtime-friendly RCU can be |
82 | enabled via the CONFIG_PREEMPT_RCU kernel configuration parameter. | 82 | enabled via the CONFIG_TREE_PREEMPT_RCU kernel configuration |
83 | However, work is in progress for enabling priority boosting of | 83 | parameter. However, work is in progress for enabling priority |
84 | preempted RCU read-side critical sections. This is needed if you | 84 | boosting of preempted RCU read-side critical sections. This is |
85 | have CPU-bound realtime threads. | 85 | needed if you have CPU-bound realtime threads. |
86 | 86 | ||
87 | o Where can I find more information on RCU? | 87 | o Where can I find more information on RCU? |
88 | 88 | ||