Adding debian version 5.10.209-2.debian/5.10.209-2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 108 insertions, 0 deletions

diff --git a/debian/patches-rt/0148-softirq-Move-various-protections-into-inline-helpers.patch b/debian/patches-rt/0148-softirq-Move-various-protections-into-inline-helpers.patch
new file mode 100644
index 000000000..e08794144
--- /dev/null
+++ b/debian/patches-rt/0148-softirq-Move-various-protections-into-inline-helpers.patch
@@ -0,0 +1,108 @@
+From 7d59f358f639cc9e535a4049d663d9347aef6380 Mon Sep 17 00:00:00 2001
+From: Thomas Gleixner <tglx@linutronix.de>
+Date: Tue, 9 Mar 2021 09:55:55 +0100
+Subject: [PATCH 148/323] softirq: Move various protections into inline helpers
+Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.10/older/patches-5.10.204-rt100.tar.xz
+
+To allow reuse of the bulk of softirq processing code for RT and to avoid
+#ifdeffery all over the place, split protections for various code sections
+out into inline helpers so the RT variant can just replace them in one go.
+
+Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
+Tested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
+Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+---
+ kernel/softirq.c | 39 ++++++++++++++++++++++++++++++++-------
+ 1 file changed, 32 insertions(+), 7 deletions(-)
+
+diff --git a/kernel/softirq.c b/kernel/softirq.c
+index fcb201ceed71..87fac6ac0c32 100644
+--- a/kernel/softirq.c
++++ b/kernel/softirq.c
+@@ -205,6 +205,32 @@ void __local_bh_enable_ip(unsigned long ip, unsigned int cnt)
+ }
+ EXPORT_SYMBOL(__local_bh_enable_ip);
+ 
++static inline void softirq_handle_begin(void)
++{
++	__local_bh_disable_ip(_RET_IP_, SOFTIRQ_OFFSET);
++}
++
++static inline void softirq_handle_end(void)
++{
++	__local_bh_enable(SOFTIRQ_OFFSET);
++	WARN_ON_ONCE(in_interrupt());
++}
++
++static inline void ksoftirqd_run_begin(void)
++{
++	local_irq_disable();
++}
++
++static inline void ksoftirqd_run_end(void)
++{
++	local_irq_enable();
++}
++
++static inline bool should_wake_ksoftirqd(void)
++{
++	return true;
++}
++
+ static inline void invoke_softirq(void)
+ {
+ 	if (ksoftirqd_running(local_softirq_pending()))
+@@ -317,7 +343,7 @@ asmlinkage __visible void __softirq_entry __do_softirq(void)
+ 
+ 	pending = local_softirq_pending();
+ 
+-	__local_bh_disable_ip(_RET_IP_, SOFTIRQ_OFFSET);
++	softirq_handle_begin();
+ 	in_hardirq = lockdep_softirq_start();
+ 	account_softirq_enter(current);
+ 
+@@ -368,8 +394,7 @@ asmlinkage __visible void __softirq_entry __do_softirq(void)
+ 
+ 	account_softirq_exit(current);
+ 	lockdep_softirq_end(in_hardirq);
+-	__local_bh_enable(SOFTIRQ_OFFSET);
+-	WARN_ON_ONCE(in_interrupt());
++	softirq_handle_end();
+ 	current_restore_flags(old_flags, PF_MEMALLOC);
+ }
+ 
+@@ -464,7 +489,7 @@ inline void raise_softirq_irqoff(unsigned int nr)
+ 	 * Otherwise we wake up ksoftirqd to make sure we
+ 	 * schedule the softirq soon.
+ 	 */
+-	if (!in_interrupt())
++	if (!in_interrupt() && should_wake_ksoftirqd())
+ 		wakeup_softirqd();
+ }
+ 
+@@ -692,18 +717,18 @@ static int ksoftirqd_should_run(unsigned int cpu)
+ 
+ static void run_ksoftirqd(unsigned int cpu)
+ {
+-	local_irq_disable();
++	ksoftirqd_run_begin();
+ 	if (local_softirq_pending()) {
+ 		/*
+ 		 * We can safely run softirq on inline stack, as we are not deep
+ 		 * in the task stack here.
+ 		 */
+ 		__do_softirq();
+-		local_irq_enable();
++		ksoftirqd_run_end();
+ 		cond_resched();
+ 		return;
+ 	}
+-	local_irq_enable();
++	ksoftirqd_run_end();
+ }
+ 
+ #ifdef CONFIG_HOTPLUG_CPU
+-- 
+2.43.0
+