rcu-tasks: Convert grace-period counter to grace-period sequence number

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This commit moves the rcu_tasks structure's ->n_gps grace-period-counter
field to a ->task_gp_seq grce-period sequence number in order to enable
use of the rcu_segcblist structure for the callback lists.  This in turn
permits CPUs to lag behind the RCU Tasks grace-period sequence number
without suffering long-term slowdowns in callback invocation.

Reported-by: Martin Lau <kafai@fb.com>
Cc: Neeraj Upadhyay <neeraj.iitr10@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

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Paul E. McKenney 2021-11-08 14:14:43 -08:00

parent 7a30871b6a

commit b14fb4fbbc

1 changed files with 5 additions and 4 deletions

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kernel/rcu/tasks.h

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