Merge branches 'docs.2022.04.20a', 'fixes.2022.04.20a', 'nocb.2022.04.11b', 'rcu...

docs.2022.04.20a: Documentation updates.
fixes.2022.04.20a: Miscellaneous fixes.
nocb.2022.04.11b: Callback-offloading updates.
rcu-tasks.2022.04.11b: RCU-tasks updates.
srcu.2022.05.03a: Put SRCU on a memory diet.
torture.2022.04.11b: Torture-test updates.
torture-tasks.2022.04.20a: Avoid torture testing changing RCU configuration.
torturescript.2022.04.20a: Torture-test scripting updates.

diff --cc Documentation/admin-guide/kernel-parameters.txt
Simple merge

diff --cc kernel/rcu/rcu.h
Simple merge

diff --cc kernel/rcu/rcutorture.c
Simple merge

diff --cc kernel/rcu/tree.c
Simple merge

diff --cc kernel/rcu/tree.h
Simple merge

diff --cc kernel/rcu/tree_plugin.h
Simple merge

diff --cc tools/testing/selftests/rcutorture/bin/torture.sh
index bfe09e2,bfe09e2,bfe09e2,bfe09e2,bfe09e2,e657a6e,bfe09e2,3be9cfa..d477618
--- 1/tools/testing/selftests/rcutorture/bin/torture.sh
--- 2/tools/testing/selftests/rcutorture/bin/torture.sh
--- 3/tools/testing/selftests/rcutorture/bin/torture.sh
--- 4/tools/testing/selftests/rcutorture/bin/torture.sh
--- 5/tools/testing/selftests/rcutorture/bin/torture.sh
--- 6/tools/testing/selftests/rcutorture/bin/torture.sh
--- 7/tools/testing/selftests/rcutorture/bin/torture.sh
--- 8/tools/testing/selftests/rcutorture/bin/torture.sh
+++ b/tools/testing/selftests/rcutorture/bin/torture.sh
@@@@@@@@@ -350,10 -350,10 -350,10 -350,10 -350,10 -357,21 -350,10 -351,10 +358,21 @@@@@@@@@ f
        
        if test "$do_scftorture" = "yes"
        then
-------         torture_bootargs="scftorture.nthreads=$HALF_ALLOTED_CPUS torture.disable_onoff_at_boot"
-------         torture_set "scftorture" tools/testing/selftests/rcutorture/bin/kvm.sh --torture scf --allcpus --duration "$duration_scftorture" --configs "$configs_scftorture" --kconfig "CONFIG_NR_CPUS=$HALF_ALLOTED_CPUS" --memory 1G --trust-make
+++++++         torture_bootargs="scftorture.nthreads=$HALF_ALLOTED_CPUS torture.disable_onoff_at_boot csdlock_debug=1"
+++++++         torture_set "scftorture" tools/testing/selftests/rcutorture/bin/kvm.sh --torture scf --allcpus --duration "$duration_scftorture" --configs "$configs_scftorture" --kconfig "CONFIG_NR_CPUS=$HALF_ALLOTED_CPUS" --memory 2G --trust-make
+++++ + fi
+++++ + 
+++++ ++if test "$do_rt" = "yes"
+++++ ++then
+++++ ++        # With all post-boot grace periods forced to normal.
+++++ ++        torture_bootargs="rcupdate.rcu_cpu_stall_suppress_at_boot=1 torture.disable_onoff_at_boot rcupdate.rcu_task_stall_timeout=30000 rcupdate.rcu_normal=1"
+++++ ++        torture_set "rcurttorture" tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration "$duration_rcutorture" --configs "TREE03" --trust-make
+++++ ++
+++++ ++        # With all post-boot grace periods forced to expedited.
+++++ ++        torture_bootargs="rcupdate.rcu_cpu_stall_suppress_at_boot=1 torture.disable_onoff_at_boot rcupdate.rcu_task_stall_timeout=30000 rcupdate.rcu_expedited=1"
+++++ ++        torture_set "rcurttorture-exp" tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration "$duration_rcutorture" --configs "TREE03" --trust-make
       +fi
       +
        if test "$do_refscale" = yes
        then
                primlist="`grep '\.name[        ]*=' kernel/rcu/refscale.c | sed -e 's/^[^"]*"//' -e 's/".*$//'`"

diff --cc tools/testing/selftests/rcutorture/configs/rcu/TRACE01
Simple merge