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| author | Paul E. McKenney <paulmck@kernel.org> | 2019-07-10 17:01:01 +0200 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2019-10-05 19:46:05 +0200 |
| commit | 366237e7b0833faa2d8da7a8d7d7da8c3ca802e5 (patch) | |
| tree | 5944c55f1dd161c7c1a2420fb259854930324df2 /kernel/rcu | |
| parent | rcutorture: Force on tick for readers and callback flooders (diff) | |
| download | linux-366237e7b0833faa2d8da7a8d7d7da8c3ca802e5.tar.xz 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 'kernel/rcu')
| -rw-r--r-- | kernel/rcu/tree.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 238f93b4b0a4..a5c296d202ae 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -364,7 +364,7 @@ bool rcu_eqs_special_set(int cpu) * * The caller must have disabled interrupts and must not be idle. */ -static void __maybe_unused rcu_momentary_dyntick_idle(void) +void rcu_momentary_dyntick_idle(void) { int special; |