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| author | Paul E. McKenney <paulmck@kernel.org> | 2019-08-09 16:29:42 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2019-10-05 10:46:03 -0700 |
| commit | ae9e557b5be2e285f48ee945d9c8faf75d4f6a66 (patch) | |
| tree | f161515b868456a6a28ab08dbe67c0ebe4490146 /kernel/time/tick-sched.c | |
| parent | 01b4c39901e087ceebae2733857248de81476bd8 (diff) | |
| download | lwn-ae9e557b5be2e285f48ee945d9c8faf75d4f6a66.tar.gz lwn-ae9e557b5be2e285f48ee945d9c8faf75d4f6a66.zip | |
time: Export tick start/stop functions for rcutorture
It turns out that rcutorture needs to ensure that the scheduling-clock
interrupt is enabled in CONFIG_NO_HZ_FULL kernels before starting on
CPU-bound in-kernel processing. This commit therefore exports
tick_nohz_dep_set_task(), tick_nohz_dep_clear_task(), and
tick_nohz_full_setup() to GPL kernel modules.
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/time/tick-sched.c')
| -rw-r--r-- | kernel/time/tick-sched.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index d1b0a84b6112..1ffdb4ba1ded 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -172,6 +172,7 @@ static void tick_sched_handle(struct tick_sched *ts, struct pt_regs *regs) #ifdef CONFIG_NO_HZ_FULL cpumask_var_t tick_nohz_full_mask; bool tick_nohz_full_running; +EXPORT_SYMBOL_GPL(tick_nohz_full_running); static atomic_t tick_dep_mask; static bool check_tick_dependency(atomic_t *dep) @@ -351,11 +352,13 @@ void tick_nohz_dep_set_task(struct task_struct *tsk, enum tick_dep_bits bit) */ tick_nohz_dep_set_all(&tsk->tick_dep_mask, bit); } +EXPORT_SYMBOL_GPL(tick_nohz_dep_set_task); void tick_nohz_dep_clear_task(struct task_struct *tsk, enum tick_dep_bits bit) { atomic_andnot(BIT(bit), &tsk->tick_dep_mask); } +EXPORT_SYMBOL_GPL(tick_nohz_dep_clear_task); /* * Set a per-taskgroup tick dependency. Posix CPU timers need this in order to elapse @@ -404,6 +407,7 @@ void __init tick_nohz_full_setup(cpumask_var_t cpumask) cpumask_copy(tick_nohz_full_mask, cpumask); tick_nohz_full_running = true; } +EXPORT_SYMBOL_GPL(tick_nohz_full_setup); static int tick_nohz_cpu_down(unsigned int cpu) { |