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authorAnton Vorontsov <avorontsov@ru.mvista.com>2009-09-22 19:49:27 -0400
committerAnton Vorontsov <avorontsov@ru.mvista.com>2009-09-22 19:49:27 -0400
commitf056878332a91ed984a116bad4e7d49aefff9e6e (patch)
tree572f4757c8e7811d45e0be0c2ae529c78fb63441 /Documentation/RCU/rcu.txt
parent3961f7c3cf247eee5df7fabadc7a40f2deeb98f3 (diff)
parent7fa07729e439a6184bd824746d06a49cca553f15 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: drivers/power/wm97xx_battery.c
Diffstat (limited to 'Documentation/RCU/rcu.txt')
-rw-r--r--Documentation/RCU/rcu.txt10
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?
79o I hear that RCU needs work in order to support realtime kernels? 79o 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
87o Where can I find more information on RCU? 87o Where can I find more information on RCU?
88 88