diff options
Diffstat (limited to 'debian/patches-rt/0003-sched-Extract-__schedule_loop.patch')
| -rw-r--r-- | debian/patches-rt/0003-sched-Extract-__schedule_loop.patch | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/debian/patches-rt/0003-sched-Extract-__schedule_loop.patch b/debian/patches-rt/0003-sched-Extract-__schedule_loop.patch new file mode 100644 index 000000000..a236df532 --- /dev/null +++ b/debian/patches-rt/0003-sched-Extract-__schedule_loop.patch @@ -0,0 +1,58 @@ +From: Thomas Gleixner <tglx@linutronix.de> +Date: Fri, 8 Sep 2023 18:22:50 +0200 +Subject: [PATCH 3/7] sched: Extract __schedule_loop() +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/6.6/older/patches-6.6.7-rt18.tar.xz + +There are currently two implementations of this basic __schedule() +loop, and there is soon to be a third. + +Signed-off-by: Thomas Gleixner <tglx@linutronix.de> +Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> +Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> +Link: https://lkml.kernel.org/r/20230908162254.999499-4-bigeasy@linutronix.de +--- + kernel/sched/core.c | 21 +++++++++++---------- + 1 file changed, 11 insertions(+), 10 deletions(-) + +--- a/kernel/sched/core.c ++++ b/kernel/sched/core.c +@@ -6771,16 +6771,21 @@ static void sched_update_worker(struct t + } + } + +-asmlinkage __visible void __sched schedule(void) ++static __always_inline void __schedule_loop(unsigned int sched_mode) + { +- struct task_struct *tsk = current; +- +- sched_submit_work(tsk); + do { + preempt_disable(); +- __schedule(SM_NONE); ++ __schedule(sched_mode); + sched_preempt_enable_no_resched(); + } while (need_resched()); ++} ++ ++asmlinkage __visible void __sched schedule(void) ++{ ++ struct task_struct *tsk = current; ++ ++ sched_submit_work(tsk); ++ __schedule_loop(SM_NONE); + sched_update_worker(tsk); + } + EXPORT_SYMBOL(schedule); +@@ -6844,11 +6849,7 @@ void __sched schedule_preempt_disabled(v + #ifdef CONFIG_PREEMPT_RT + void __sched notrace schedule_rtlock(void) + { +- do { +- preempt_disable(); +- __schedule(SM_RTLOCK_WAIT); +- sched_preempt_enable_no_resched(); +- } while (need_resched()); ++ __schedule_loop(SM_RTLOCK_WAIT); + } + NOKPROBE_SYMBOL(schedule_rtlock); + #endif |