rcu-tasks: Make RCU Tasks Trace make use of RCU scheduler hooks

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This commit makes the calls to rcu_tasks_qs() detect and report
quiescent states for RCU tasks trace.  If the task is in a quiescent
state and if ->trc_reader_checked is not yet set, the task sets its own
->trc_reader_checked.  This will cause the grace-period kthread to
remove it from the holdout list if it still remains there.

[ paulmck: Fix conditional compilation per kbuild test robot feedback. ]
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

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This commit is contained in:

Paul E. McKenney 2020-03-16 20:38:29 -07:00

parent af051ca4e4

commit 43766c3ead

4 changed files with 43 additions and 14 deletions

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44

include/linux/rcupdate.h

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2

include/linux/rcutiny.h

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5

kernel/rcu/tasks.h

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6

kernel/rcu/tree_plugin.h

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