[patch 04/14] tasklets: Use spin wait in tasklet_disable() temporarily
From: Thomas Gleixner <hidden>
Date: 2021-03-09 08:47:12
Also in:
linux-pci, linux-wireless, lkml, netdev
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 <redacted> --- 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(); }