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| author | Paul E. McKenney <paulmck@kernel.org> | 2020-03-18 17:16:37 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2020-04-27 11:03:52 -0700 |
| commit | 9ae58d7bd11f1fc4c96389df11751f8593d8bd33 (patch) | |
| tree | 2839dd92f0e5f91bedc25cd399b2a0ca619f48a1 /kernel/rcu/rcu.h | |
| parent | 238dbce39ea467577ce7e41ee3e98748c436ed0f (diff) | |
rcu-tasks: Add Kconfig option to mediate smp_mb() vs. IPI
This commit provides a new TASKS_TRACE_RCU_READ_MB Kconfig option that
enables use of read-side memory barriers by both rcu_read_lock_trace()
and rcu_read_unlock_trace() when the are executed with the
current->trc_reader_special.b.need_mb flag set. This flag is currently
never set. Doing that is the subject of a later commit.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/rcu/rcu.h')
0 files changed, 0 insertions, 0 deletions