It is important that console printing threads are scheduled
shortly after a printk call and with generous runtime budgets.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
---
kernel/printk/nbcon.c | 6 ++++++
kernel/printk/printk.c | 6 ++++++
2 files changed, 12 insertions(+)
diff --git a/kernel/printk/nbcon.c b/kernel/printk/nbcon.c
index 2a61f2c68ddc..e34e5c5a7843 100644
--- a/kernel/printk/nbcon.c
+++ b/kernel/printk/nbcon.c
@@ -1260,6 +1260,12 @@ bool nbcon_kthread_create(struct console *con)
con->kthread = kt;
+ /*
+ * It is important that console printing threads are scheduled
+ * shortly after a printk call and with generous runtime budgets.
+ */
+ sched_set_normal(con->kthread, -20);
+
return true;
}
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 6f70d3a7153f..36087a6d579f 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -3504,6 +3504,12 @@ static bool legacy_kthread_create(void)
printk_legacy_kthread = kt;
+ /*
+ * It is important that console printing threads are scheduled
+ * shortly after a printk call and with generous runtime budgets.
+ */
+ sched_set_normal(printk_legacy_kthread, -20);
+
return true;
}
--
2.39.2