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doc.2023.07.14b: Documentation updates. fixes.2023.08.16a: Miscellaneous fixes, perhaps most notably simplifying SRCU_NOTIFIER_INIT() as suggested. rcu-tasks.2023.07.24a: RCU Tasks updates, most notably treating Tasks RCU callbacks as lazy while still treating synchronous grace periods as urgent. Also fixes one bug that restores the ability to apply debug-objects to RCU Tasks and another that fixes a race condition that could result in false-positive failures of the boot-time self-test code. rcuscale.2023.07.14b: RCU-scalability performance-test updates, most notably adding the ability to measure the RCU-Tasks's grace-period kthread's CPU consumption. This proved quite useful for the rcu-tasks.2023.07.24a work. refscale.2023.07.14b: Reference-acquisition/release performance-test updates, including a fix for an uninitialized wait_queue_head_t. torture.2023.08.14a: Miscellaneous torture-test updates. torturescripts.2023.07.20a: Torture-test scripting updates, including removal of the non-longer-functional formal-verification scripts, test builds of individual RCU Tasks flavors, better diagnostics for loss of connectivity for distributed rcutorture tests, disabling of reboot loops in qemu/KVM-based rcutorture testing, and passing of init parameters to rcutorture's init program. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEbK7UrM+RBIrCoViJnr8S83LZ+4wFAmTjkssTHHBhdWxtY2tA a2VybmVsLm9yZwAKCRCevxLzctn7jITND/9zEqYNbeFrcBs/YaHdoAjsNgOt1IYN csfF/KArVgdvmrwlV/nEaQMLaJcw9X7DVU5+7E2JbbDaB/2FSacseNyKk6mfgSVK /0rnTOXpqI9/T1HiJObWZvDQFuKL12bfteXWGJg1sMt2JUGZ4nAWhdZ3xRjp2XkO 89qB5r0fF8gyGwvQ3M29ss8T9Oy0uUNJmDY/QyVxHM6dhkpSAezFffKzD7C4zkSV WucRTpYJ7bs6otBGtVmwz3x60UAuLwcVfQyB+CTbnGLsps9yAYU+1DDVdm7olcr3 ARXMeboeodMvy9jWXhtbWRVAAob4lVUDXQN27kb4sBgroRQBfQXMuByRAU6s0VtX frOl6rlbORuAetsC8wFL0IFVn4yTpvXKbYw7h1MXTs7gVVbl33O9FieGvWu0r79/ VR4Xw+JbmYWtyvFV8Zaq4iIEcOe+PeNH6u0bPx+htsHYd1+DUG2UY0MVmJQ3a4sb ygejA6mguCk7KBzWab8wdDpgAfhNwg0T9a+LQYcaskuD5SSWjYqqg6i1ulqqqyiE bOfRKDX4mWmAobWKHLssqUrjiLbxfygIaHjCrt7rWJKPIs1bK/WfWa4JbrE0NRwK 9IDd1lWc9C+zoUpjyZWSG3ahK5lWo2u4sPNoRtMQjowjobIz1cBhaEwmFe72bG7C FCKb7Da2oUaLOw== =EujZ -----END PGP SIGNATURE----- Merge tag 'rcu.2023.08.21a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu Pull RCU updates from Paul McKenney: - Documentation updates - Miscellaneous fixes, perhaps most notably simplifying SRCU_NOTIFIER_INIT() as suggested - RCU Tasks updates, most notably treating Tasks RCU callbacks as lazy while still treating synchronous grace periods as urgent. Also fixes one bug that restores the ability to apply debug-objects to RCU Tasks and another that fixes a race condition that could result in false-positive failures of the boot-time self-test code - RCU-scalability performance-test updates, most notably adding the ability to measure the RCU-Tasks's grace-period kthread's CPU consumption. This proved quite useful for the RCU Tasks work - Reference-acquisition/release performance-test updates, including a fix for an uninitialized wait_queue_head_t - Miscellaneous torture-test updates - Torture-test scripting updates, including removal of the non-longer-functional formal-verification scripts, test builds of individual RCU Tasks flavors, better diagnostics for loss of connectivity for distributed rcutorture tests, disabling of reboot loops in qemu/KVM-based rcutorture testing, and passing of init parameters to rcutorture's init program * tag 'rcu.2023.08.21a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (64 commits) rcu: Use WRITE_ONCE() for assignments to ->next for rculist_nulls rcu: Make the rcu_nocb_poll boot parameter usable via boot config rcu: Mark __rcu_irq_enter_check_tick() ->rcu_urgent_qs load srcu,notifier: Remove #ifdefs in favor of SRCU Tiny srcu_usage rcutorture: Stop right-shifting torture_random() return values torture: Stop right-shifting torture_random() return values torture: Move stutter_wait() timeouts to hrtimers torture: Move torture_shuffle() timeouts to hrtimers torture: Move torture_onoff() timeouts to hrtimers torture: Make torture_hrtimeout_*() use TASK_IDLE torture: Add lock_torture writer_fifo module parameter torture: Add a kthread-creation callback to _torture_create_kthread() rcu-tasks: Fix boot-time RCU tasks debug-only deadlock rcu-tasks: Permit use of debug-objects with RCU Tasks flavors checkpatch: Complain about unexpected uses of RCU Tasks Trace torture: Cause mkinitrd.sh to indicate failure on compile errors torture: Make init program dump command-line arguments torture: Switch qemu from -nographic to -display none torture: Add init-program support for loongarch torture: Avoid torture-test reboot loops ...