Commit d5578190 authored by Paul E. McKenney's avatar Paul E. McKenney
Browse files

Merge branches 'exp.2022.02.24a', 'fixes.2022.02.14a',... 

Merge branches 'exp.2022.02.24a', 'fixes.2022.02.14a', 'rcu_barrier.2022.02.08a', 'rcu-tasks.2022.02.08a', 'rt.2022.02.01b', 'torture.2022.02.01b' and 'torturescript.2022.02.08a' into HEAD

exp.2022.02.24a: Expedited grace-period updates.
fixes.2022.02.14a: Miscellaneous fixes.
rcu_barrier.2022.02.08a: Make rcu_barrier() no longer exclude CPU hotplug.
rcu-tasks.2022.02.08a: RCU-tasks updates.
rt.2022.02.01b: Real-time-related updates.
torture.2022.02.01b: Torture-test updates.
torturescript.2022.02.08a: Torture-test scripting updates.
parents 63c564da 6a2c1d45 5ae0f1b5 00a8b4b5 c9515875 9c0f1c7f 8ea7a53d

Documentation/admin-guide/kernel-parameters.txt

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@@ -4504,6 +4504,8 @@ 
			(the least-favored priority).  Otherwise, when

			RCU_BOOST is not set, valid values are 0-99 and

			the default is zero (non-realtime operation).

			When RCU_NOCB_CPU is set, also adjust the

			priority of NOCB callback kthreads.



	rcutree.rcu_nocb_gp_stride= [KNL]

			Set the number of NOCB callback kthreads in

MAINTAINERS

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@@ -16298,6 +16298,8 @@ 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:	Josh Triplett <josh@joshtriplett.org>









R:	Steven Rostedt <rostedt@goodmis.org>









R:	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
































include/linux/rcupdate.h



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@@ -84,7 +84,7 @@ static inline int rcu_preempt_depth(void)

















/* Internal to kernel */









void rcu_init(void);









extern int rcu_scheduler_active __read_mostly;









extern int rcu_scheduler_active;









void rcu_sched_clock_irq(int user);









void rcu_report_dead(unsigned int cpu);









void rcutree_migrate_callbacks(int cpu);








@@ -924,7 +924,7 @@ static inline notrace void rcu_read_unlock_sched_notrace(void)







 *









 *     kvfree_rcu(ptr);









 *









 * where @ptr is a pointer to kvfree().









 * where @ptr is the pointer to be freed by kvfree().









 *









 * Please note, head-less way of freeing is permitted to









 * use from a context that has to follow might_sleep()
































include/linux/rcutree.h



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@@ -62,7 +62,7 @@ static inline void rcu_irq_exit_check_preempt(void) { }







void exit_rcu(void);



















void rcu_scheduler_starting(void);









extern int rcu_scheduler_active __read_mostly;









extern int rcu_scheduler_active;









void rcu_end_inkernel_boot(void);









bool rcu_inkernel_boot_has_ended(void);









bool rcu_is_watching(void);
































include/linux/rcuwait.h



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@@ -47,11 +47,7 @@ static inline void prepare_to_rcuwait(struct rcuwait *w)







	rcu_assign_pointer(w->task, current);









}



















static inline void finish_rcuwait(struct rcuwait *w)









{









        rcu_assign_pointer(w->task, NULL);









	__set_current_state(TASK_RUNNING);









}









extern void finish_rcuwait(struct rcuwait *w);



















#define rcuwait_wait_event(w, condition, state)				\









({									\