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| author |   Paul E. McKenney <paulmck@kernel.org> | 2019-07-10 08:01:01 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2019-10-05 10:46:05 -0700 |
| commit | 366237e7b0833faa2d8da7a8d7d7da8c3ca802e5 (patch) | |
| tree | 5944c55f1dd161c7c1a2420fb259854930324df2 /include/linux/rcutree.h | |
| parent | rcutorture: Force on tick for readers and callback flooders (diff) | |
| download | wireguard-linux-366237e7b0833faa2d8da7a8d7d7da8c3ca802e5.tar.xz wireguard-linux-366237e7b0833faa2d8da7a8d7d7da8c3ca802e5.zip | |
stop_machine: Provide RCU quiescent state in multi_cpu_stop()
When multi_cpu_stop() loops waiting for other tasks, it can trigger an RCU
CPU stall warning. This can be misleading because what is instead needed
is information on whatever task is blocking multi_cpu_stop(). This commit
therefore inserts an RCU quiescent state into the multi_cpu_stop()
function's waitloop.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'include/linux/rcutree.h')
| -rw-r--r-- | include/linux/rcutree.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h index 18b1ed9864b0..c5147de885ec 100644 --- a/include/linux/rcutree.h +++ b/include/linux/rcutree.h @@ -37,6 +37,7 @@ void kfree_call_rcu(struct rcu_head *head, rcu_callback_t func); void rcu_barrier(void); bool rcu_eqs_special_set(int cpu); +void rcu_momentary_dyntick_idle(void); unsigned long get_state_synchronize_rcu(void); void cond_synchronize_rcu(unsigned long oldstate); |