[ANNOUNCE] v5.4.5-rt2v5.4.5-rt2-patches

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

2 files changed, 48 insertions, 31 deletions

diff --git a/patches/0004-workqueue-Convert-the-locks-to-raw-type.patch b/patches/0004-workqueue-Convert-the-locks-to-raw-type.patch
index d731cf7d6eb9..0571352dd2d3 100644
--- a/patches/0004-workqueue-Convert-the-locks-to-raw-type.patch
+++ b/patches/0004-workqueue-Convert-the-locks-to-raw-type.patch
@@ -8,8 +8,8 @@ The lock is not held over an unbounded period of time/iterations.
 
 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
 ---
- kernel/workqueue.c |  164 ++++++++++++++++++++++++++---------------------------
- 1 file changed, 82 insertions(+), 82 deletions(-)
+ kernel/workqueue.c |  168 ++++++++++++++++++++++++++---------------------------
+ 1 file changed, 84 insertions(+), 84 deletions(-)
 
 --- a/kernel/workqueue.c
 +++ b/kernel/workqueue.c
@@ -397,20 +397,25 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  
  		/*
  		 * Slurp in all works issued via this workqueue and
-@@ -2528,10 +2528,10 @@ static int rescuer_thread(void *__rescue
+@@ -2528,7 +2528,7 @@ static int rescuer_thread(void *__rescue
  			 * incur MAYDAY_INTERVAL delay inbetween.
  			 */
  			if (need_to_create_worker(pool)) {
 -				spin_lock(&wq_mayday_lock);
 +				raw_spin_lock(&wq_mayday_lock);
- 				get_pwq(pwq);
- 				list_move_tail(&pwq->mayday_node, &wq->maydays);
+ 				/*
+ 				 * Queue iff we aren't racing destruction
+ 				 * and somebody else hasn't queued it already.
+@@ -2537,7 +2537,7 @@ static int rescuer_thread(void *__rescue
+ 					get_pwq(pwq);
+ 					list_add_tail(&pwq->mayday_node, &wq->maydays);
+ 				}
 -				spin_unlock(&wq_mayday_lock);
 +				raw_spin_unlock(&wq_mayday_lock);
  			}
  		}
  
-@@ -2549,14 +2549,14 @@ static int rescuer_thread(void *__rescue
+@@ -2555,14 +2555,14 @@ static int rescuer_thread(void *__rescue
  		if (need_more_worker(pool))
  			wake_up_worker(pool);
  
@@ -428,7 +433,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  
  	if (should_stop) {
  		__set_current_state(TASK_RUNNING);
-@@ -2636,7 +2636,7 @@ static void wq_barrier_func(struct work_
+@@ -2642,7 +2642,7 @@ static void wq_barrier_func(struct work_
   * underneath us, so we can't reliably determine pwq from @target.
   *
   * CONTEXT:
@@ -437,7 +442,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
   */
  static void insert_wq_barrier(struct pool_workqueue *pwq,
  			      struct wq_barrier *barr,
-@@ -2723,7 +2723,7 @@ static bool flush_workqueue_prep_pwqs(st
+@@ -2729,7 +2729,7 @@ static bool flush_workqueue_prep_pwqs(st
  	for_each_pwq(pwq, wq) {
  		struct worker_pool *pool = pwq->pool;
  
@@ -446,7 +451,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  
  		if (flush_color >= 0) {
  			WARN_ON_ONCE(pwq->flush_color != -1);
-@@ -2740,7 +2740,7 @@ static bool flush_workqueue_prep_pwqs(st
+@@ -2746,7 +2746,7 @@ static bool flush_workqueue_prep_pwqs(st
  			pwq->work_color = work_color;
  		}
  
@@ -455,7 +460,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  	}
  
  	if (flush_color >= 0 && atomic_dec_and_test(&wq->nr_pwqs_to_flush))
-@@ -2940,9 +2940,9 @@ void drain_workqueue(struct workqueue_st
+@@ -2946,9 +2946,9 @@ void drain_workqueue(struct workqueue_st
  	for_each_pwq(pwq, wq) {
  		bool drained;
  
@@ -467,7 +472,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  
  		if (drained)
  			continue;
-@@ -2978,7 +2978,7 @@ static bool start_flush_work(struct work
+@@ -2984,7 +2984,7 @@ static bool start_flush_work(struct work
  		return false;
  	}
  
@@ -476,7 +481,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  	/* see the comment in try_to_grab_pending() with the same code */
  	pwq = get_work_pwq(work);
  	if (pwq) {
-@@ -2994,7 +2994,7 @@ static bool start_flush_work(struct work
+@@ -3000,7 +3000,7 @@ static bool start_flush_work(struct work
  	check_flush_dependency(pwq->wq, work);
  
  	insert_wq_barrier(pwq, barr, work, worker);
@@ -485,7 +490,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  
  	/*
  	 * Force a lock recursion deadlock when using flush_work() inside a
-@@ -3013,7 +3013,7 @@ static bool start_flush_work(struct work
+@@ -3019,7 +3019,7 @@ static bool start_flush_work(struct work
  	rcu_read_unlock();
  	return true;
  already_gone:
@@ -494,7 +499,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  	rcu_read_unlock();
  	return false;
  }
-@@ -3406,7 +3406,7 @@ static bool wqattrs_equal(const struct w
+@@ -3412,7 +3412,7 @@ static bool wqattrs_equal(const struct w
   */
  static int init_worker_pool(struct worker_pool *pool)
  {
@@ -503,7 +508,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  	pool->id = -1;
  	pool->cpu = -1;
  	pool->node = NUMA_NO_NODE;
-@@ -3532,7 +3532,7 @@ static void put_unbound_pool(struct work
+@@ -3538,7 +3538,7 @@ static void put_unbound_pool(struct work
  	 * @pool's workers from blocking on attach_mutex.  We're the last
  	 * manager and @pool gets freed with the flag set.
  	 */
@@ -512,7 +517,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  	swait_event_lock_irq(wq_manager_wait,
  			    !(pool->flags & POOL_MANAGER_ACTIVE), pool->lock);
  	pool->flags |= POOL_MANAGER_ACTIVE;
-@@ -3540,7 +3540,7 @@ static void put_unbound_pool(struct work
+@@ -3546,7 +3546,7 @@ static void put_unbound_pool(struct work
  	while ((worker = first_idle_worker(pool)))
  		destroy_worker(worker);
  	WARN_ON(pool->nr_workers || pool->nr_idle);
@@ -521,7 +526,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  
  	mutex_lock(&wq_pool_attach_mutex);
  	if (!list_empty(&pool->workers))
-@@ -3696,7 +3696,7 @@ static void pwq_adjust_max_active(struct
+@@ -3702,7 +3702,7 @@ static void pwq_adjust_max_active(struct
  		return;
  
  	/* this function can be called during early boot w/ irq disabled */
@@ -530,7 +535,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  
  	/*
  	 * During [un]freezing, the caller is responsible for ensuring that
-@@ -3719,7 +3719,7 @@ static void pwq_adjust_max_active(struct
+@@ -3725,7 +3725,7 @@ static void pwq_adjust_max_active(struct
  		pwq->max_active = 0;
  	}
  
@@ -539,7 +544,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  }
  
  /* initialize newly alloced @pwq which is associated with @wq and @pool */
-@@ -4121,9 +4121,9 @@ static void wq_update_unbound_numa(struc
+@@ -4127,9 +4127,9 @@ static void wq_update_unbound_numa(struc
  
  use_dfl_pwq:
  	mutex_lock(&wq->mutex);
@@ -551,7 +556,19 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  	old_pwq = numa_pwq_tbl_install(wq, node, wq->dfl_pwq);
  out_unlock:
  	mutex_unlock(&wq->mutex);
-@@ -4519,10 +4519,10 @@ unsigned int work_busy(struct work_struc
+@@ -4342,9 +4342,9 @@ void destroy_workqueue(struct workqueue_
+ 		struct worker *rescuer = wq->rescuer;
+ 
+ 		/* this prevents new queueing */
+-		spin_lock_irq(&wq_mayday_lock);
++		raw_spin_lock_irq(&wq_mayday_lock);
+ 		wq->rescuer = NULL;
+-		spin_unlock_irq(&wq_mayday_lock);
++		raw_spin_unlock_irq(&wq_mayday_lock);
+ 
+ 		/* rescuer will empty maydays list before exiting */
+ 		kthread_stop(rescuer->task);
+@@ -4540,10 +4540,10 @@ unsigned int work_busy(struct work_struc
  	rcu_read_lock();
  	pool = get_work_pool(work);
  	if (pool) {
@@ -564,7 +581,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  	}
  	rcu_read_unlock();
  
-@@ -4728,10 +4728,10 @@ void show_workqueue_state(void)
+@@ -4750,10 +4750,10 @@ void show_workqueue_state(void)
  		pr_info("workqueue %s: flags=0x%x\n", wq->name, wq->flags);
  
  		for_each_pwq(pwq, wq) {
@@ -577,7 +594,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  			/*
  			 * We could be printing a lot from atomic context, e.g.
  			 * sysrq-t -> show_workqueue_state(). Avoid triggering
-@@ -4745,7 +4745,7 @@ void show_workqueue_state(void)
+@@ -4767,7 +4767,7 @@ void show_workqueue_state(void)
  		struct worker *worker;
  		bool first = true;
  
@@ -586,7 +603,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  		if (pool->nr_workers == pool->nr_idle)
  			goto next_pool;
  
-@@ -4764,7 +4764,7 @@ void show_workqueue_state(void)
+@@ -4786,7 +4786,7 @@ void show_workqueue_state(void)
  		}
  		pr_cont("\n");
  	next_pool:
@@ -595,7 +612,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  		/*
  		 * We could be printing a lot from atomic context, e.g.
  		 * sysrq-t -> show_workqueue_state(). Avoid triggering
-@@ -4794,7 +4794,7 @@ void wq_worker_comm(char *buf, size_t si
+@@ -4816,7 +4816,7 @@ void wq_worker_comm(char *buf, size_t si
  		struct worker_pool *pool = worker->pool;
  
  		if (pool) {
@@ -604,7 +621,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  			/*
  			 * ->desc tracks information (wq name or
  			 * set_worker_desc()) for the latest execution.  If
-@@ -4808,7 +4808,7 @@ void wq_worker_comm(char *buf, size_t si
+@@ -4830,7 +4830,7 @@ void wq_worker_comm(char *buf, size_t si
  					scnprintf(buf + off, size - off, "-%s",
  						  worker->desc);
  			}
@@ -613,7 +630,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  		}
  	}
  
-@@ -4839,7 +4839,7 @@ static void unbind_workers(int cpu)
+@@ -4861,7 +4861,7 @@ static void unbind_workers(int cpu)
  
  	for_each_cpu_worker_pool(pool, cpu) {
  		mutex_lock(&wq_pool_attach_mutex);
@@ -622,7 +639,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  
  		/*
  		 * We've blocked all attach/detach operations. Make all workers
-@@ -4853,7 +4853,7 @@ static void unbind_workers(int cpu)
+@@ -4875,7 +4875,7 @@ static void unbind_workers(int cpu)
  
  		pool->flags |= POOL_DISASSOCIATED;
  
@@ -631,7 +648,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  		mutex_unlock(&wq_pool_attach_mutex);
  
  		/*
-@@ -4879,9 +4879,9 @@ static void unbind_workers(int cpu)
+@@ -4901,9 +4901,9 @@ static void unbind_workers(int cpu)
  		 * worker blocking could lead to lengthy stalls.  Kick off
  		 * unbound chain execution of currently pending work items.
  		 */
@@ -643,7 +660,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  	}
  }
  
-@@ -4908,7 +4908,7 @@ static void rebind_workers(struct worker
+@@ -4930,7 +4930,7 @@ static void rebind_workers(struct worker
  		WARN_ON_ONCE(set_cpus_allowed_ptr(worker->task,
  						  pool->attrs->cpumask) < 0);
  
@@ -652,7 +669,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  
  	pool->flags &= ~POOL_DISASSOCIATED;
  
-@@ -4947,7 +4947,7 @@ static void rebind_workers(struct worker
+@@ -4969,7 +4969,7 @@ static void rebind_workers(struct worker
  		WRITE_ONCE(worker->flags, worker_flags);
  	}
  
diff --git a/patches/localversion.patch b/patches/localversion.patch
index a02382e6df70..279489a1d145 100644
--- a/patches/localversion.patch
+++ b/patches/localversion.patch
@@ -10,4 +10,4 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
 --- /dev/null
 +++ b/localversion-rt
 @@ -0,0 +1 @@
-+-rt1
++-rt2