64 lines
1.8 KiB
Diff
64 lines
1.8 KiB
Diff
From 441d37212b3185e39a4eba30acb9f2aefc8f157a Mon Sep 17 00:00:00 2001
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From: Thomas Gleixner <tglx@linutronix.de>
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Date: Fri, 8 Sep 2023 18:22:50 +0200
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Subject: [PATCH 003/196] sched: Extract __schedule_loop()
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There are currently two implementations of this basic __schedule()
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loop, and there is soon to be a third.
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
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Link: https://lkml.kernel.org/r/20230908162254.999499-4-bigeasy@linutronix.de
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---
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kernel/sched/core.c | 21 +++++++++++----------
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1 file changed, 11 insertions(+), 10 deletions(-)
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diff --git a/kernel/sched/core.c b/kernel/sched/core.c
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index a9bf40d18cec..ed5f5e3f6239 100644
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--- a/kernel/sched/core.c
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+++ b/kernel/sched/core.c
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@@ -6771,16 +6771,21 @@ static void sched_update_worker(struct task_struct *tsk)
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}
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}
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-asmlinkage __visible void __sched schedule(void)
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+static __always_inline void __schedule_loop(unsigned int sched_mode)
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{
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- struct task_struct *tsk = current;
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-
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- sched_submit_work(tsk);
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do {
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preempt_disable();
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- __schedule(SM_NONE);
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+ __schedule(sched_mode);
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sched_preempt_enable_no_resched();
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} while (need_resched());
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+}
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+
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+asmlinkage __visible void __sched schedule(void)
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+{
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+ struct task_struct *tsk = current;
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+
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+ sched_submit_work(tsk);
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+ __schedule_loop(SM_NONE);
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sched_update_worker(tsk);
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}
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EXPORT_SYMBOL(schedule);
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@@ -6844,11 +6849,7 @@ void __sched schedule_preempt_disabled(void)
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#ifdef CONFIG_PREEMPT_RT
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void __sched notrace schedule_rtlock(void)
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{
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- do {
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- preempt_disable();
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- __schedule(SM_RTLOCK_WAIT);
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- sched_preempt_enable_no_resched();
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- } while (need_resched());
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+ __schedule_loop(SM_RTLOCK_WAIT);
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}
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NOKPROBE_SYMBOL(schedule_rtlock);
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#endif
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--
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2.43.2
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