diff options
| author |   Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2015-09-03 00:45:02 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2015-10-07 16:02:50 -0700 |
| commit | 338b0f760e84676130c6e4d8268cb8c923b38c8c (patch) | |
| tree | b42541168d50567df146c2e95d5ab15b1dc3af14 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | rcu: Enable stall warnings for synchronize_rcu_expedited() (diff) | |
| download | wireguard-linux-338b0f760e84676130c6e4d8268cb8c923b38c8c.tar.xz wireguard-linux-338b0f760e84676130c6e4d8268cb8c923b38c8c.zip | |
rcu: Better hotplug handling for synchronize_sched_expedited()
Earlier versions of synchronize_sched_expedited() can prematurely end
grace periods due to the fact that a CPU marked as cpu_is_offline()
can still be using RCU read-side critical sections during the time that
CPU makes its last pass through the scheduler and into the idle loop
and during the time that a given CPU is in the process of coming online.
This commit therefore eliminates this window by adding additional
interaction with the CPU-hotplug operations.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions