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| author | Paul E. McKenney <paulmck@kernel.org> | 2022-05-17 17:11:37 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2022-06-20 09:22:29 -0700 |
| commit | 1fa98e2e40e5a46fa528b6ab256ba00dfb319dde (patch) | |
| tree | 040e2d897df956ca25d3a9e16b9fca73c4097b70 /kernel | |
| parent | 387c0ad702296c4eb7b95322c8af0e4391bf146f (diff) | |
| download | linux-1fa98e2e40e5a46fa528b6ab256ba00dfb319dde.tar.gz linux-1fa98e2e40e5a46fa528b6ab256ba00dfb319dde.tar.bz2 linux-1fa98e2e40e5a46fa528b6ab256ba00dfb319dde.zip | |
rcu-tasks: Move rcu_tasks_trace_pertask() before rcu_tasks_trace_pregp_step()
This is a code-motion-only commit that moves rcu_tasks_trace_pertask()
to precede rcu_tasks_trace_pregp_step(), so that the latter will be
able to invoke the other without forward references.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Neeraj Upadhyay <quic_neeraju@quicinc.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: KP Singh <kpsingh@kernel.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/rcu/tasks.h | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/kernel/rcu/tasks.h b/kernel/rcu/tasks.h index 6f4b89f9517e..66d8473f1bda 100644 --- a/kernel/rcu/tasks.h +++ b/kernel/rcu/tasks.h @@ -1449,20 +1449,6 @@ static void trc_wait_for_one_reader(struct task_struct *t, } } -/* Initialize for a new RCU-tasks-trace grace period. */ -static void rcu_tasks_trace_pregp_step(void) -{ - int cpu; - - // There shouldn't be any old IPIs, but... - for_each_possible_cpu(cpu) - WARN_ON_ONCE(per_cpu(trc_ipi_to_cpu, cpu)); - - // Disable CPU hotplug across the tasklist scan. - // This also waits for all readers in CPU-hotplug code paths. - cpus_read_lock(); -} - /* Do first-round processing for the specified task. */ static void rcu_tasks_trace_pertask(struct task_struct *t, struct list_head *hop) @@ -1478,6 +1464,20 @@ static void rcu_tasks_trace_pertask(struct task_struct *t, trc_wait_for_one_reader(t, hop); } +/* Initialize for a new RCU-tasks-trace grace period. */ +static void rcu_tasks_trace_pregp_step(void) +{ + int cpu; + + // There shouldn't be any old IPIs, but... + for_each_possible_cpu(cpu) + WARN_ON_ONCE(per_cpu(trc_ipi_to_cpu, cpu)); + + // Disable CPU hotplug across the tasklist scan. + // This also waits for all readers in CPU-hotplug code paths. + cpus_read_lock(); +} + /* * Do intermediate processing between task and holdout scans and * pick up the idle tasks. |