Subject: [PATCH v3 10/19] powerpc/64: add context tracking to asynchronous interrupts

From: Nicholas Piggin <[email-masked]>
Date: Sun, 29 Nov 2020 00:41:05 +1000

Previously context tracking was not done for asynchronous interrupts,
(those that run in interrupt context), and if those would cause a
reschedule when they exit, then scheduling functions (schedule_user,
preempt_schedule_irq) call exception_enter/exit to fix this up and
exit user context.

This is a hack we would like to get away from, so do context tracking
for asynchronous interrupts too.

Signed-off-by: Nicholas Piggin <[email-masked]>
---
 arch/powerpc/include/asm/interrupt.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/include/asm/interrupt.h b/arch/powerpc/include/asm/interrupt.h
index e2410f54c6e9..8f7db1c8cbe0 100644
--- a/arch/powerpc/include/asm/interrupt.h
+++ b/arch/powerpc/include/asm/interrupt.h
@@ -42,10 +42,12 @@ static inline void interrupt_exit_prepare(struct pt_regs *regs, struct interrupt
 
 static inline void interrupt_async_enter_prepare(struct pt_regs *regs, struct interrupt_state *state)
 {
+	interrupt_enter_prepare(regs, state);
 }
 
 static inline void interrupt_async_exit_prepare(struct pt_regs *regs, struct interrupt_state *state)
 {
+	interrupt_exit_prepare(regs, state);
 }
 
 struct interrupt_nmi_state {
-- 
2.23.0