git: 907f9800646e - stable/13 - LinuxKPI: Implement irq_work_sync() routine.

[Vladimir Kondratyev]

The branch stable/13 has been updated by wulf:

URL: https://cgit.FreeBSD.org/src/commit/?id=907f9800646eaef149a38a93ce0e28ed87a4f7f2

commit 907f9800646eaef149a38a93ce0e28ed87a4f7f2
Author:     Vladimir Kondratyev <wulf at FreeBSD.org>
AuthorDate: 2021-07-05 00:20:06 +0000
Commit:     Vladimir Kondratyev <wulf at FreeBSD.org>
CommitDate: 2021-07-20 22:43:52 +0000

    LinuxKPI: Implement irq_work_sync() routine.
    
    irq_work_sync() performs draining of irq_work task.
    Required by drm-kmod.
    
    Reviewed by:    hselasky
    Differential revision:  https://reviews.freebsd.org/D30818
    
    (cherry picked from commit 864b11007ab3de9f65f28b730507225396c38b9e)
---
 sys/compat/linuxkpi/common/include/linux/irq_work.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/sys/compat/linuxkpi/common/include/linux/irq_work.h b/sys/compat/linuxkpi/common/include/linux/irq_work.h
index eb1798a4e450..1b376b829818 100644
--- a/sys/compat/linuxkpi/common/include/linux/irq_work.h
+++ b/sys/compat/linuxkpi/common/include/linux/irq_work.h
@@ -64,4 +64,10 @@ irq_work_queue(struct irq_work *irqw)
 	taskqueue_enqueue(linux_irq_work_tq, &irqw->irq_task);
 }
 
+static inline void
+irq_work_sync(struct irq_work *irqw)
+{
+	taskqueue_drain(linux_irq_work_tq, &irqw->irq_task);
+}
+
 #endif /* __LINUX_IRQ_WORK_H__ */