diff options
Diffstat (limited to 'debian/patches-rt/0111-sched-Use-the-proper-LOCK_OFFSET-for-cond_resched.patch')
| -rw-r--r-- | debian/patches-rt/0111-sched-Use-the-proper-LOCK_OFFSET-for-cond_resched.patch | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/debian/patches-rt/0111-sched-Use-the-proper-LOCK_OFFSET-for-cond_resched.patch b/debian/patches-rt/0111-sched-Use-the-proper-LOCK_OFFSET-for-cond_resched.patch new file mode 100644 index 000000000..eccb1e428 --- /dev/null +++ b/debian/patches-rt/0111-sched-Use-the-proper-LOCK_OFFSET-for-cond_resched.patch @@ -0,0 +1,33 @@ +From 5c317385aa997812acc4dd102c34f7d843bd7eb6 Mon Sep 17 00:00:00 2001 +From: Thomas Gleixner <tglx@linutronix.de> +Date: Sun, 17 Jul 2011 22:51:33 +0200 +Subject: [PATCH 111/347] sched: Use the proper LOCK_OFFSET for cond_resched() +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.246-rt110.tar.xz + +RT does not increment preempt count when a 'sleeping' spinlock is +locked. Update PREEMPT_LOCK_OFFSET for that case. + +Signed-off-by: Thomas Gleixner <tglx@linutronix.de> +--- + include/linux/preempt.h | 4 ++++ + 1 file changed, 4 insertions(+) + +diff --git a/include/linux/preempt.h b/include/linux/preempt.h +index f7a17fcc3fec..b7fe717eb1f4 100644 +--- a/include/linux/preempt.h ++++ b/include/linux/preempt.h +@@ -118,7 +118,11 @@ + /* + * The preempt_count offset after spin_lock() + */ ++#if !defined(CONFIG_PREEMPT_RT_FULL) + #define PREEMPT_LOCK_OFFSET PREEMPT_DISABLE_OFFSET ++#else ++#define PREEMPT_LOCK_OFFSET 0 ++#endif + + /* + * The preempt_count offset needed for things like: +-- +2.36.1 + |