diff options
Diffstat (limited to 'debian/patches-rt/0003-sched-hotplug-Ensure-only-per-cpu-kthreads-run-durin.patch')
| -rw-r--r-- | debian/patches-rt/0003-sched-hotplug-Ensure-only-per-cpu-kthreads-run-durin.patch | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/debian/patches-rt/0003-sched-hotplug-Ensure-only-per-cpu-kthreads-run-durin.patch b/debian/patches-rt/0003-sched-hotplug-Ensure-only-per-cpu-kthreads-run-durin.patch index 8e9877f29..8d26bbaa9 100644 --- a/debian/patches-rt/0003-sched-hotplug-Ensure-only-per-cpu-kthreads-run-durin.patch +++ b/debian/patches-rt/0003-sched-hotplug-Ensure-only-per-cpu-kthreads-run-durin.patch @@ -2,7 +2,7 @@ From: Peter Zijlstra <peterz@infradead.org> Date: Fri, 23 Oct 2020 12:12:01 +0200 Subject: [PATCH 03/19] sched/hotplug: Ensure only per-cpu kthreads run during hotplug -Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.10/older/patches-5.10.8-rt24.tar.xz +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.10/older/patches-5.10.21-rt34.tar.xz In preparation for migrate_disable(), make sure only per-cpu kthreads are allowed to run on !active CPUs. @@ -28,7 +28,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> --- a/kernel/sched/core.c +++ b/kernel/sched/core.c -@@ -3514,8 +3514,10 @@ static inline struct callback_head *spli +@@ -3511,8 +3511,10 @@ static inline struct callback_head *spli struct callback_head *head = rq->balance_callback; lockdep_assert_held(&rq->lock); @@ -40,7 +40,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> return head; } -@@ -3536,6 +3538,21 @@ static inline void balance_callbacks(str +@@ -3533,6 +3535,21 @@ static inline void balance_callbacks(str } } @@ -62,7 +62,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> #else static inline void __balance_callbacks(struct rq *rq) -@@ -3551,6 +3568,10 @@ static inline void balance_callbacks(str +@@ -3548,6 +3565,10 @@ static inline void balance_callbacks(str { } @@ -73,7 +73,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> #endif static inline void -@@ -3578,7 +3599,7 @@ static inline void finish_lock_switch(st +@@ -3575,7 +3596,7 @@ static inline void finish_lock_switch(st * prev into current: */ spin_acquire(&rq->lock.dep_map, 0, 0, _THIS_IP_); @@ -82,7 +82,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> raw_spin_unlock_irq(&rq->lock); } -@@ -6834,6 +6855,90 @@ static void migrate_tasks(struct rq *dea +@@ -6831,6 +6852,90 @@ static void migrate_tasks(struct rq *dea rq->stop = stop; } @@ -173,7 +173,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> #endif /* CONFIG_HOTPLUG_CPU */ void set_rq_online(struct rq *rq) -@@ -6919,6 +7024,8 @@ int sched_cpu_activate(unsigned int cpu) +@@ -6916,6 +7021,8 @@ int sched_cpu_activate(unsigned int cpu) struct rq *rq = cpu_rq(cpu); struct rq_flags rf; @@ -182,7 +182,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> #ifdef CONFIG_SCHED_SMT /* * When going up, increment the number of cores with SMT present. -@@ -6966,6 +7073,8 @@ int sched_cpu_deactivate(unsigned int cp +@@ -6963,6 +7070,8 @@ int sched_cpu_deactivate(unsigned int cp */ synchronize_rcu(); @@ -191,7 +191,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> #ifdef CONFIG_SCHED_SMT /* * When going down, decrement the number of cores with SMT present. -@@ -6979,6 +7088,7 @@ int sched_cpu_deactivate(unsigned int cp +@@ -6976,6 +7085,7 @@ int sched_cpu_deactivate(unsigned int cp ret = cpuset_cpu_inactive(cpu); if (ret) { @@ -209,7 +209,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> unsigned char nohz_idle_balance; unsigned char idle_balance; -@@ -1379,6 +1380,9 @@ init_numa_balancing(unsigned long clone_ +@@ -1380,6 +1381,9 @@ init_numa_balancing(unsigned long clone_ #ifdef CONFIG_SMP @@ -219,7 +219,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> static inline void queue_balance_callback(struct rq *rq, struct callback_head *head, -@@ -1386,12 +1390,13 @@ queue_balance_callback(struct rq *rq, +@@ -1387,12 +1391,13 @@ queue_balance_callback(struct rq *rq, { lockdep_assert_held(&rq->lock); |