Re: [PATCH tip/core/rcu 25/41] workqueue: Replace call_rcu_sched() with call_rcu()

2018-11-13 Thread Paul E. McKenney
On Tue, Nov 13, 2018 at 07:48:03AM -0800, Tejun Heo wrote:
> On Sun, Nov 11, 2018 at 11:43:54AM -0800, Paul E. McKenney wrote:
> > Now that call_rcu()'s callback is not invoked until after all
> > preempt-disable regions of code have completed (in addition to explicitly
> > marked RCU read-side critical sections), call_rcu() can be used in place
> > of call_rcu_sched().  This commit therefore makes that change.
> > 
> > Signed-off-by: Paul E. McKenney 
> > Cc: Tejun Heo 
> > Cc: Lai Jiangshan 
> 
> Acked-by: Tejun Heo 

Applied all four, thank you!

Thanx, Paul



Re: [PATCH tip/core/rcu 25/41] workqueue: Replace call_rcu_sched() with call_rcu()

2018-11-13 Thread Paul E. McKenney
On Tue, Nov 13, 2018 at 07:48:03AM -0800, Tejun Heo wrote:
> On Sun, Nov 11, 2018 at 11:43:54AM -0800, Paul E. McKenney wrote:
> > Now that call_rcu()'s callback is not invoked until after all
> > preempt-disable regions of code have completed (in addition to explicitly
> > marked RCU read-side critical sections), call_rcu() can be used in place
> > of call_rcu_sched().  This commit therefore makes that change.
> > 
> > Signed-off-by: Paul E. McKenney 
> > Cc: Tejun Heo 
> > Cc: Lai Jiangshan 
> 
> Acked-by: Tejun Heo 

Applied all four, thank you!

Thanx, Paul



Re: [PATCH tip/core/rcu 25/41] workqueue: Replace call_rcu_sched() with call_rcu()

2018-11-13 Thread Tejun Heo
On Sun, Nov 11, 2018 at 11:43:54AM -0800, Paul E. McKenney wrote:
> Now that call_rcu()'s callback is not invoked until after all
> preempt-disable regions of code have completed (in addition to explicitly
> marked RCU read-side critical sections), call_rcu() can be used in place
> of call_rcu_sched().  This commit therefore makes that change.
> 
> Signed-off-by: Paul E. McKenney 
> Cc: Tejun Heo 
> Cc: Lai Jiangshan 

Acked-by: Tejun Heo 

Thanks.

-- 
tejun


Re: [PATCH tip/core/rcu 25/41] workqueue: Replace call_rcu_sched() with call_rcu()

2018-11-13 Thread Tejun Heo
On Sun, Nov 11, 2018 at 11:43:54AM -0800, Paul E. McKenney wrote:
> Now that call_rcu()'s callback is not invoked until after all
> preempt-disable regions of code have completed (in addition to explicitly
> marked RCU read-side critical sections), call_rcu() can be used in place
> of call_rcu_sched().  This commit therefore makes that change.
> 
> Signed-off-by: Paul E. McKenney 
> Cc: Tejun Heo 
> Cc: Lai Jiangshan 

Acked-by: Tejun Heo 

Thanks.

-- 
tejun


[PATCH tip/core/rcu 25/41] workqueue: Replace call_rcu_sched() with call_rcu()

2018-11-11 Thread Paul E. McKenney
Now that call_rcu()'s callback is not invoked until after all
preempt-disable regions of code have completed (in addition to explicitly
marked RCU read-side critical sections), call_rcu() can be used in place
of call_rcu_sched().  This commit therefore makes that change.

Signed-off-by: Paul E. McKenney 
Cc: Tejun Heo 
Cc: Lai Jiangshan 
---
 kernel/workqueue.c | 8 
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 0280deac392e..392be4b252f6 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -3396,7 +3396,7 @@ static void put_unbound_pool(struct worker_pool *pool)
del_timer_sync(>mayday_timer);
 
/* sched-RCU protected to allow dereferences from get_work_pool() */
-   call_rcu_sched(>rcu, rcu_free_pool);
+   call_rcu(>rcu, rcu_free_pool);
 }
 
 /**
@@ -3503,14 +3503,14 @@ static void pwq_unbound_release_workfn(struct 
work_struct *work)
put_unbound_pool(pool);
mutex_unlock(_pool_mutex);
 
-   call_rcu_sched(>rcu, rcu_free_pwq);
+   call_rcu(>rcu, rcu_free_pwq);
 
/*
 * If we're the last pwq going away, @wq is already dead and no one
 * is gonna access it anymore.  Schedule RCU free.
 */
if (is_last)
-   call_rcu_sched(>rcu, rcu_free_wq);
+   call_rcu(>rcu, rcu_free_wq);
 }
 
 /**
@@ -4195,7 +4195,7 @@ void destroy_workqueue(struct workqueue_struct *wq)
 * The base ref is never dropped on per-cpu pwqs.  Directly
 * schedule RCU free.
 */
-   call_rcu_sched(>rcu, rcu_free_wq);
+   call_rcu(>rcu, rcu_free_wq);
} else {
/*
 * We're the sole accessor of @wq at this point.  Directly
-- 
2.17.1



[PATCH tip/core/rcu 25/41] workqueue: Replace call_rcu_sched() with call_rcu()

2018-11-11 Thread Paul E. McKenney
Now that call_rcu()'s callback is not invoked until after all
preempt-disable regions of code have completed (in addition to explicitly
marked RCU read-side critical sections), call_rcu() can be used in place
of call_rcu_sched().  This commit therefore makes that change.

Signed-off-by: Paul E. McKenney 
Cc: Tejun Heo 
Cc: Lai Jiangshan 
---
 kernel/workqueue.c | 8 
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 0280deac392e..392be4b252f6 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -3396,7 +3396,7 @@ static void put_unbound_pool(struct worker_pool *pool)
del_timer_sync(>mayday_timer);
 
/* sched-RCU protected to allow dereferences from get_work_pool() */
-   call_rcu_sched(>rcu, rcu_free_pool);
+   call_rcu(>rcu, rcu_free_pool);
 }
 
 /**
@@ -3503,14 +3503,14 @@ static void pwq_unbound_release_workfn(struct 
work_struct *work)
put_unbound_pool(pool);
mutex_unlock(_pool_mutex);
 
-   call_rcu_sched(>rcu, rcu_free_pwq);
+   call_rcu(>rcu, rcu_free_pwq);
 
/*
 * If we're the last pwq going away, @wq is already dead and no one
 * is gonna access it anymore.  Schedule RCU free.
 */
if (is_last)
-   call_rcu_sched(>rcu, rcu_free_wq);
+   call_rcu(>rcu, rcu_free_wq);
 }
 
 /**
@@ -4195,7 +4195,7 @@ void destroy_workqueue(struct workqueue_struct *wq)
 * The base ref is never dropped on per-cpu pwqs.  Directly
 * schedule RCU free.
 */
-   call_rcu_sched(>rcu, rcu_free_wq);
+   call_rcu(>rcu, rcu_free_wq);
} else {
/*
 * We're the sole accessor of @wq at this point.  Directly
-- 
2.17.1