49 lines
1.5 KiB
Diff
49 lines
1.5 KiB
Diff
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From: John Ogness <john.ogness@linutronix.de>
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Date: Wed, 4 Sep 2024 14:11:35 +0206
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Subject: [PATCH 53/54] printk: nbcon: Assign nice -20 for printing threads
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/6.11/older/patches-6.11-rt7.tar.xz
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It is important that console printing threads are scheduled
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shortly after a printk call and with generous runtime budgets.
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Signed-off-by: John Ogness <john.ogness@linutronix.de>
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Reviewed-by: Petr Mladek <pmladek@suse.com>
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Link: https://lore.kernel.org/r/20240904120536.115780-17-john.ogness@linutronix.de
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Signed-off-by: Petr Mladek <pmladek@suse.com>
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Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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---
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kernel/printk/nbcon.c | 6 ++++++
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kernel/printk/printk.c | 6 ++++++
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2 files changed, 12 insertions(+)
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--- a/kernel/printk/nbcon.c
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+++ b/kernel/printk/nbcon.c
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@@ -1321,6 +1321,12 @@ bool nbcon_kthread_create(struct console
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con->kthread = kt;
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+ /*
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+ * It is important that console printing threads are scheduled
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+ * shortly after a printk call and with generous runtime budgets.
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+ */
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+ sched_set_normal(con->kthread, -20);
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+
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return true;
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}
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--- a/kernel/printk/printk.c
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+++ b/kernel/printk/printk.c
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@@ -3556,6 +3556,12 @@ static bool legacy_kthread_create(void)
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printk_legacy_kthread = kt;
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+ /*
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+ * It is important that console printing threads are scheduled
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+ * shortly after a printk call and with generous runtime budgets.
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+ */
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+ sched_set_normal(printk_legacy_kthread, -20);
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+
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return true;
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}
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