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| author | Zqiang <qiang.zhang1211@gmail.com> | 2024-03-18 17:34:11 +0800 |
|---|---|---|
| committer | Uladzislau Rezki (Sony) <urezki@gmail.com> | 2024-04-16 11:16:35 +0200 |
| commit | dddcddef1414be3ebc37a40d13fcc0f6a672ba9f (patch) | |
| tree | 1490fe938bf6fe6fdd7433226a96e3b0e9d32376 /kernel/rcu/tasks.h | |
| parent | e38bf06d509a90c9fc185129ec913beb6de3d428 (diff) | |
rcutorture: Make rcutorture support print rcu-tasks gp state
This commit make rcu-tasks related rcutorture test support rcu-tasks
gp state printing when the writer stall occurs or the at the end of
rcutorture test, and generate rcu_ops->get_gp_data() operation to
simplify the acquisition of gp state for different types of rcutorture
tests.
Signed-off-by: Zqiang <qiang.zhang1211@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Diffstat (limited to 'kernel/rcu/tasks.h')
| -rw-r--r-- | kernel/rcu/tasks.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/kernel/rcu/tasks.h b/kernel/rcu/tasks.h index 147b5945d67a..a1af7dadc0f7 100644 --- a/kernel/rcu/tasks.h +++ b/kernel/rcu/tasks.h @@ -1178,6 +1178,13 @@ struct task_struct *get_rcu_tasks_gp_kthread(void) } EXPORT_SYMBOL_GPL(get_rcu_tasks_gp_kthread); +void rcu_tasks_get_gp_data(int *flags, unsigned long *gp_seq) +{ + *flags = 0; + *gp_seq = rcu_seq_current(&rcu_tasks.tasks_gp_seq); +} +EXPORT_SYMBOL_GPL(rcu_tasks_get_gp_data); + /* * Protect against tasklist scan blind spot while the task is exiting and * may be removed from the tasklist. Do this by adding the task to yet @@ -1358,6 +1365,13 @@ struct task_struct *get_rcu_tasks_rude_gp_kthread(void) } EXPORT_SYMBOL_GPL(get_rcu_tasks_rude_gp_kthread); +void rcu_tasks_rude_get_gp_data(int *flags, unsigned long *gp_seq) +{ + *flags = 0; + *gp_seq = rcu_seq_current(&rcu_tasks_rude.tasks_gp_seq); +} +EXPORT_SYMBOL_GPL(rcu_tasks_rude_get_gp_data); + #endif /* #ifdef CONFIG_TASKS_RUDE_RCU */ //////////////////////////////////////////////////////////////////////// @@ -2010,6 +2024,13 @@ struct task_struct *get_rcu_tasks_trace_gp_kthread(void) } EXPORT_SYMBOL_GPL(get_rcu_tasks_trace_gp_kthread); +void rcu_tasks_trace_get_gp_data(int *flags, unsigned long *gp_seq) +{ + *flags = 0; + *gp_seq = rcu_seq_current(&rcu_tasks_trace.tasks_gp_seq); +} +EXPORT_SYMBOL_GPL(rcu_tasks_trace_get_gp_data); + #else /* #ifdef CONFIG_TASKS_TRACE_RCU */ static void exit_tasks_rcu_finish_trace(struct task_struct *t) { } #endif /* #else #ifdef CONFIG_TASKS_TRACE_RCU */ |