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authorLinus Torvalds <torvalds@linux-foundation.org>2017-05-10 09:50:55 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-10 10:30:46 -0700
commitde4d195308ad589626571dbe5789cebf9695a204 (patch)
tree77a6bd6946594ea4e7513aaa73009295530960a1 /Documentation/admin-guide
parentdc9edaab90de9441cc28ac570b23b0d2bdba7879 (diff)
parent20652ed6e44f4963281b65209b917be86ac6765b (diff)
downloadblackbird-op-linux-de4d195308ad589626571dbe5789cebf9695a204.tar.gz
blackbird-op-linux-de4d195308ad589626571dbe5789cebf9695a204.zip
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar: "The main changes are: - Debloat RCU headers - Parallelize SRCU callback handling (plus overlapping patches) - Improve the performance of Tree SRCU on a CPU-hotplug stress test - Documentation updates - Miscellaneous fixes" * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (74 commits) rcu: Open-code the rcu_cblist_n_lazy_cbs() function rcu: Open-code the rcu_cblist_n_cbs() function rcu: Open-code the rcu_cblist_empty() function rcu: Separately compile large rcu_segcblist functions srcu: Debloat the <linux/rcu_segcblist.h> header srcu: Adjust default auto-expediting holdoff srcu: Specify auto-expedite holdoff time srcu: Expedite first synchronize_srcu() when idle srcu: Expedited grace periods with reduced memory contention srcu: Make rcutorture writer stalls print SRCU GP state srcu: Exact tracking of srcu_data structures containing callbacks srcu: Make SRCU be built by default srcu: Fix Kconfig botch when SRCU not selected rcu: Make non-preemptive schedule be Tasks RCU quiescent state srcu: Expedite srcu_schedule_cbs_snp() callback invocation srcu: Parallelize callback handling kvm: Move srcu_struct fields to end of struct kvm rcu: Fix typo in PER_RCU_NODE_PERIOD header comment rcu: Use true/false in assignment to bool rcu: Use bool value directly ...
Diffstat (limited to 'Documentation/admin-guide')
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt8
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 130e7ecaf9a6..4e0654b56aef 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3800,6 +3800,14 @@
spia_pedr=
spia_peddr=
+ srcutree.exp_holdoff [KNL]
+ Specifies how many nanoseconds must elapse
+ since the end of the last SRCU grace period for
+ a given srcu_struct until the next normal SRCU
+ grace period will be considered for automatic
+ expediting. Set to zero to disable automatic
+ expediting.
+
stacktrace [FTRACE]
Enabled the stack tracer on boot up.
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