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| author | Uladzislau Rezki (Sony) <urezki@gmail.com> | 2020-12-09 21:27:31 +0100 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2020-12-15 00:31:13 +0100 |
| commit | 1b04fa9900263b4e217ca2509fd778b32c2b4eb2 (patch) | |
| tree | 9d5e4a413b1e641955514dc16b4b2ba4a7924c5e /include | |
| parent | Linux 5.10-rc7 (diff) | |
| download | linux-1b04fa9900263b4e217ca2509fd778b32c2b4eb2.tar.xz linux-1b04fa9900263b4e217ca2509fd778b32c2b4eb2.zip | |
rcu-tasks: Move RCU-tasks initialization to before early_initcall()
PowerPC testing encountered boot failures due to RCU Tasks not being
fully initialized until core_initcall() time. This commit therefore
initializes RCU Tasks (along with Rude RCU and RCU Tasks Trace) just
before early_initcall() time, thus allowing waiting on RCU Tasks grace
periods from early_initcall() handlers.
Link: https://lore.kernel.org/rcu/87eekfh80a.fsf@dja-thinkpad.axtens.net/
Fixes: 36dadef23fcc ("kprobes: Init kprobes in early_initcall")
Tested-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/rcupdate.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 6cdd0152c253..5c119d6cecf1 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -86,6 +86,12 @@ void rcu_sched_clock_irq(int user); void rcu_report_dead(unsigned int cpu); void rcutree_migrate_callbacks(int cpu); +#ifdef CONFIG_TASKS_RCU_GENERIC +void rcu_init_tasks_generic(void); +#else +static inline void rcu_init_tasks_generic(void) { } +#endif + #ifdef CONFIG_RCU_STALL_COMMON void rcu_sysrq_start(void); void rcu_sysrq_end(void); |