diff options
| author | Paul E. McKenney | 2018-07-01 07:40:52 -0700 |
|---|---|---|
| committer | Paul E. McKenney | 2018-08-30 16:02:40 -0700 |
| commit | 65cfe3583b612a22e12fba9a7bbd2d37ca5ad941 (patch) | |
| tree | 66dcbed4b0f96f008ffdacd63f717ca4653f6b02 /kernel/rcu/tree_plugin.h | |
| parent | ba1c64c27239373be1b3d88cf0a9ac1b10fa871f (diff) | |
rcu: Define RCU-bh update API in terms of RCU
Now that the main RCU API knows about softirq disabling and softirq's
quiescent states, the RCU-bh update code can be dispensed with.
This commit therefore removes the RCU-bh update-side implementation and
defines RCU-bh's update-side API in terms of that of either RCU-preempt or
RCU-sched, depending on the setting of the CONFIG_PREEMPT Kconfig option.
In kernels built with CONFIG_RCU_NOCB_CPU=y this has the knock-on effect
of reducing by one the number of rcuo kthreads per CPU.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcu/tree_plugin.h')
| -rw-r--r-- | kernel/rcu/tree_plugin.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h index 0d7107fb3dec..1ff742a3c8d1 100644 --- a/kernel/rcu/tree_plugin.h +++ b/kernel/rcu/tree_plugin.h @@ -1320,7 +1320,6 @@ static int rcu_spawn_one_boost_kthread(struct rcu_state *rsp, static void rcu_kthread_do_work(void) { rcu_do_batch(&rcu_sched_state, this_cpu_ptr(&rcu_sched_data)); - rcu_do_batch(&rcu_bh_state, this_cpu_ptr(&rcu_bh_data)); rcu_do_batch(&rcu_preempt_state, this_cpu_ptr(&rcu_preempt_data)); } |