Commit 64619b28 authored by Uladzislau Rezki (Sony)'s avatar Uladzislau Rezki (Sony)
Browse files

Merge branches 'fixes.2024.04.15a', 'misc.2024.04.12a',... 

Merge branches 'fixes.2024.04.15a', 'misc.2024.04.12a', 'rcu-sync-normal-improve.2024.04.15a', 'rcu-tasks.2024.04.15a' and 'rcutorture.2024.04.15a' into rcu-merge.2024.04.15a

fixes.2024.04.15a: RCU fixes
misc.2024.04.12a: Miscellaneous fixes
rcu-sync-normal-improve.2024.04.15a: Improving synchronize_rcu() call
rcu-tasks.2024.04.15a: Tasks RCU updates
rcutorture.2024.04.15a: Torture-test updates
parents 3758f7d9 64ec8b6a 0fd210ba cc5645fd 1c67318b

.mailmap

+2 −1
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@@ -445,7 +445,8 @@ Nadav Amit <nadav.amit@gmail.com> <namit@cs.technion.ac.il> 
Nadia Yvette Chambers <nyc@holomorphy.com> William Lee Irwin III <wli@holomorphy.com>

Naoya Horiguchi <naoya.horiguchi@nec.com> <n-horiguchi@ah.jp.nec.com>

Nathan Chancellor <nathan@kernel.org> <natechancellor@gmail.com>

Neeraj Upadhyay <quic_neeraju@quicinc.com> <neeraju@codeaurora.org>

Neeraj Upadhyay <neeraj.upadhyay@kernel.org> <quic_neeraju@quicinc.com>

Neeraj Upadhyay <neeraj.upadhyay@kernel.org> <neeraju@codeaurora.org>

Neil Armstrong <neil.armstrong@linaro.org> <narmstrong@baylibre.com>

Nguyen Anh Quynh <aquynh@gmail.com>

Nicholas Piggin <npiggin@gmail.com> <npiggen@suse.de>

Documentation/RCU/whatisRCU.rst

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@@ -427,7 +427,7 @@ their assorted primitives. 


This section shows a simple use of the core RCU API to protect a

global pointer to a dynamically allocated structure.  More-typical

uses of RCU may be found in listRCU.rst, arrayRCU.rst, and NMI-RCU.rst.

uses of RCU may be found in listRCU.rst and NMI-RCU.rst.

::



	struct foo {
@@ -510,8 +510,8 @@ So, to sum up: 
	data item.



See checklist.rst for additional rules to follow when using RCU.

And again, more-typical uses of RCU may be found in listRCU.rst,

arrayRCU.rst, and NMI-RCU.rst.

And again, more-typical uses of RCU may be found in listRCU.rst

and NMI-RCU.rst.



.. _4_whatisRCU:

Documentation/admin-guide/kernel-parameters.txt

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@@ -5091,6 +5091,20 @@ 
			delay, memory pressure or callback list growing too

			big.



	rcutree.rcu_normal_wake_from_gp= [KNL]

			Reduces a latency of synchronize_rcu() call. This approach

			maintains its own track of synchronize_rcu() callers, so it

			does not interact with regular callbacks because it does not

			use a call_rcu[_hurry]() path. Please note, this is for a

			normal grace period.



			How to enable it:



			echo 1 > /sys/module/rcutree/parameters/rcu_normal_wake_from_gp

			or pass a boot parameter "rcutree.rcu_normal_wake_from_gp=1"



			Default is 0.



	rcuscale.gp_async= [KNL]

			Measure performance of asynchronous

			grace-period primitives such as call_rcu().

MAINTAINERS

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@@ -18591,7 +18591,7 @@ F: tools/testing/selftests/resctrl/ 
READ-COPY UPDATE (RCU)

M:	"Paul E. McKenney" <paulmck@kernel.org>

M:	Frederic Weisbecker <frederic@kernel.org> (kernel/rcu/tree_nocb.h)

M:	Neeraj Upadhyay <quic_neeraju@quicinc.com> (kernel/rcu/tasks.h)

M:	Neeraj Upadhyay <neeraj.upadhyay@kernel.org> (kernel/rcu/tasks.h)

M:	Joel Fernandes <joel@joelfernandes.org>

M:	Josh Triplett <josh@joshtriplett.org>

M:	Boqun Feng <boqun.feng@gmail.com>

arch/Kconfig

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@@ -55,7 +55,7 @@ config KPROBES 
	depends on MODULES

	depends on HAVE_KPROBES

	select KALLSYMS

	select TASKS_RCU if PREEMPTION

	select NEED_TASKS_RCU

	help

	  Kprobes allows you to trap at almost any kernel address and

	  execute a callback function.  register_kprobe() establishes
@@ -104,7 +104,7 @@ config STATIC_CALL_SELFTEST 
config OPTPROBES

	def_bool y

	depends on KPROBES && HAVE_OPTPROBES

	select TASKS_RCU if PREEMPTION

	select NEED_TASKS_RCU



config KPROBES_ON_FTRACE

	def_bool y