From: Thomas Gleixner Date: Tue, 9 Mar 2021 09:42:07 +0100 Subject: [PATCH 04/20] tasklets: Use spin wait in tasklet_disable() temporarily 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 Signed-off-by: Sebastian Andrzej Siewior --- include/linux/interrupt.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -733,7 +733,8 @@ 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(); }