Paul E. McKenney
c7e88067c1
srcu: Exact tracking of srcu_data structures containing callbacks
...
The current Tree SRCU implementation schedules a workqueue for every
srcu_data covered by a given leaf srcu_node structure having callbacks,
even if only one of those srcu_data structures actually contains
callbacks. This is clearly inefficient for workloads that don't feature
callbacks everywhere all the time. This commit therefore adds an array
of masks that are used by the leaf srcu_node structures to track exactly
which srcu_data structures contain callbacks.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com >
Tested-by: Mike Galbraith <efault@gmx.de >
2017-04-26 11:23:12 -07:00
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