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authorPaul E. McKenney <paulmck@linux.ibm.com>2019-06-02 13:41:08 -0700
committerPaul E. McKenney <paulmck@linux.ibm.com>2019-08-13 14:35:49 -0700
commit4fd8c5f153bc41ae847b9ddb1539b34f70c18278 (patch)
tree9ee82606a6959988cb925ec1404e37b66f6145a4 /tools/perf/scripts/python/export-to-sqlite.py
parent523bddd553c09a2cf051eb724bffba680424f5ec (diff)
rcu/nocb: Reduce ->nocb_lock contention with separate ->nocb_gp_lock
The sleep/wakeup of the no-CBs grace-period kthreads is synchronized using the ->nocb_lock of the first CPU corresponding to that kthread. This commit provides a separate ->nocb_gp_lock for this purpose, thus reducing contention on ->nocb_lock. Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
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