diff options
Diffstat (limited to 'debian/patches-rt/0002-sched-swait-Add-swait_event_lock_irq.patch')
| -rw-r--r-- | debian/patches-rt/0002-sched-swait-Add-swait_event_lock_irq.patch | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/debian/patches-rt/0002-sched-swait-Add-swait_event_lock_irq.patch b/debian/patches-rt/0002-sched-swait-Add-swait_event_lock_irq.patch new file mode 100644 index 000000000..86110023d --- /dev/null +++ b/debian/patches-rt/0002-sched-swait-Add-swait_event_lock_irq.patch @@ -0,0 +1,34 @@ +From: Sebastian Andrzej Siewior <bigeasy@linutronix.de> +Date: Wed, 22 May 2019 12:42:26 +0200 +Subject: [PATCH 2/4] sched/swait: Add swait_event_lock_irq() +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.4/older/patches-5.4.3-rt1.tar.xz + +The swait_event_lock_irq() is inspired by wait_event_lock_irq(). This is +required by the workqueue code once it switches to swait. + +Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> +--- + include/linux/swait.h | 14 ++++++++++++++ + 1 file changed, 14 insertions(+) + +--- a/include/linux/swait.h ++++ b/include/linux/swait.h +@@ -297,4 +297,18 @@ do { \ + __ret; \ + }) + ++#define __swait_event_lock_irq(wq, condition, lock, cmd) \ ++ ___swait_event(wq, condition, TASK_UNINTERRUPTIBLE, 0, \ ++ raw_spin_unlock_irq(&lock); \ ++ cmd; \ ++ schedule(); \ ++ raw_spin_lock_irq(&lock)) ++ ++#define swait_event_lock_irq(wq_head, condition, lock) \ ++ do { \ ++ if (condition) \ ++ break; \ ++ __swait_event_lock_irq(wq_head, condition, lock, ); \ ++ } while (0) ++ + #endif /* _LINUX_SWAIT_H */ |