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

Thomas Gleixner
2021-03-09T08:47:12Z

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(-)

--- 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();
}