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From a627fa5abc3e55cddc704d352ac54b9cae090728 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 9 Mar 2021 09:42:07 +0100
Subject: [PATCH 044/191] 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>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
include/linux/interrupt.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 9d9475f7b89f..f0b82429950c 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -724,7 +724,8 @@ 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();
}
--
2.19.1
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