summaryrefslogtreecommitdiffstats
path: root/debian/patches-rt/0033-x86-entry-Use-should_resched-in-idtentry_exit_cond_r.patch
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:59 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:59 +0000
commit01997497f915e8f79871f3f2acb55ac465051d24 (patch)
tree1ce1afd7246e1014199e15cbf854bf7924458e5d /debian/patches-rt/0033-x86-entry-Use-should_resched-in-idtentry_exit_cond_r.patch
parentAdding upstream version 6.1.76. (diff)
downloadlinux-01997497f915e8f79871f3f2acb55ac465051d24.tar.xz
linux-01997497f915e8f79871f3f2acb55ac465051d24.zip
Adding debian version 6.1.76-1.debian/6.1.76-1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'debian/patches-rt/0033-x86-entry-Use-should_resched-in-idtentry_exit_cond_r.patch')
-rw-r--r--debian/patches-rt/0033-x86-entry-Use-should_resched-in-idtentry_exit_cond_r.patch36
1 files changed, 36 insertions, 0 deletions
diff --git a/debian/patches-rt/0033-x86-entry-Use-should_resched-in-idtentry_exit_cond_r.patch b/debian/patches-rt/0033-x86-entry-Use-should_resched-in-idtentry_exit_cond_r.patch
new file mode 100644
index 000000000..69ddd41b3
--- /dev/null
+++ b/debian/patches-rt/0033-x86-entry-Use-should_resched-in-idtentry_exit_cond_r.patch
@@ -0,0 +1,36 @@
+From 37719a07083b68dad1449227e9fe66e8e6c9f2b6 Mon Sep 17 00:00:00 2001
+From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+Date: Tue, 30 Jun 2020 11:45:14 +0200
+Subject: [PATCH 33/62] x86/entry: Use should_resched() in
+ idtentry_exit_cond_resched()
+Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/6.1/older/patches-6.1.69-rt21.tar.xz
+
+The TIF_NEED_RESCHED bit is inlined on x86 into the preemption counter.
+By using should_resched(0) instead of need_resched() the same check can
+be performed which uses the same variable as 'preempt_count()` which was
+issued before.
+
+Use should_resched(0) instead need_resched().
+
+Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
+---
+ kernel/entry/common.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/kernel/entry/common.c b/kernel/entry/common.c
+index be61332c66b5..97ff5faad4fb 100644
+--- a/kernel/entry/common.c
++++ b/kernel/entry/common.c
+@@ -386,7 +386,7 @@ void raw_irqentry_exit_cond_resched(void)
+ rcu_irq_exit_check_preempt();
+ if (IS_ENABLED(CONFIG_DEBUG_ENTRY))
+ WARN_ON_ONCE(!on_thread_stack());
+- if (need_resched())
++ if (should_resched(0))
+ preempt_schedule_irq();
+ }
+ }
+--
+2.43.0
+