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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2017-01-10 08:23:15 +0100 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2017-01-15 06:22:20 +0100 |
| commit | f466ae66fa6a599f9a53b5f9bafea4b8cfffa7fb (patch) | |
| tree | 14a3d519d0ff62417e35ab05bd1b05901b792692 /kernel/rcu | |
| parent | Linux 4.10-rc3 (diff) | |
| download | linux-f466ae66fa6a599f9a53b5f9bafea4b8cfffa7fb.tar.xz linux-f466ae66fa6a599f9a53b5f9bafea4b8cfffa7fb.zip | |
rcu: Remove cond_resched() from Tiny synchronize_sched()
It is now legal to invoke synchronize_sched() at early boot, which causes
Tiny RCU's synchronize_sched() to emit spurious splats. This commit
therefore removes the cond_resched() from Tiny RCU's synchronize_sched().
Fixes: 8b355e3bc140 ("rcu: Drive expedited grace periods from workqueue")
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: <stable@vger.kernel.org> # 4.9.0-
Diffstat (limited to 'kernel/rcu')
| -rw-r--r-- | kernel/rcu/tiny.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/kernel/rcu/tiny.c b/kernel/rcu/tiny.c index 1898559e6b60..b23a4d076f3d 100644 --- a/kernel/rcu/tiny.c +++ b/kernel/rcu/tiny.c @@ -185,9 +185,6 @@ static __latent_entropy void rcu_process_callbacks(struct softirq_action *unused * benefits of doing might_sleep() to reduce latency.) * * Cool, huh? (Due to Josh Triplett.) - * - * But we want to make this a static inline later. The cond_resched() - * currently makes this problematic. */ void synchronize_sched(void) { @@ -195,7 +192,6 @@ void synchronize_sched(void) lock_is_held(&rcu_lock_map) || lock_is_held(&rcu_sched_lock_map), "Illegal synchronize_sched() in RCU read-side critical section"); - cond_resched(); } EXPORT_SYMBOL_GPL(synchronize_sched); |