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| author |   Thomas Gleixner <tglx@linutronix.de> | 2021-03-09 09:42:07 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2021-03-17 16:33:54 +0100 |
| commit | b0cd02c2a9494dbf0a1cc7dc7a3b8b400c158d37 (patch) | |
| tree | e1fea860e6d3dfd0a945cbe5a0c182ebe6757056 /include/linux/interrupt.h | |
| parent | tasklets: Provide tasklet_disable_in_atomic() (diff) | |
| download | wireguard-linux-b0cd02c2a9494dbf0a1cc7dc7a3b8b400c158d37.tar.xz wireguard-linux-b0cd02c2a9494dbf0a1cc7dc7a3b8b400c158d37.zip | |
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 <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210309084241.685352806@linutronix.de
Diffstat (limited to 'include/linux/interrupt.h')
| -rw-r--r-- | include/linux/interrupt.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index 3c8a29176258..b7f00121f124 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -728,7 +728,8 @@ static inline void tasklet_disable_in_atomic(struct tasklet_struct *t) 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(); } |