diff mbox series

[04/14] tasklets: Use spin wait in tasklet_disable() temporarily

Message ID 20210309084241.685352806@linutronix.de
State New
Headers show
Series tasklets: Replace the spin wait loops and make it RT safe | expand

Commit Message

Thomas Gleixner March 9, 2021, 8:42 a.m. UTC 
To ease the transition use spin waiting in tasklet_disable() until all
usage sites from atomic context have been cleaned up.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 include/linux/interrupt.h |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -728,7 +728,8 @@  static inline void tasklet_disable_in_at
 static inline void tasklet_disable(struct tasklet_struct *t)
 {
 	tasklet_disable_nosync(t);
-	tasklet_unlock_wait(t);
+	/* Spin wait until all atomic users are converted */
+	tasklet_unlock_spin_wait(t);
 	smp_mb();
 }