[PATCH 5.9 176/255] perf: Fix get_recursion_context()

From: Greg Kroah-Hartman
Date: Tue Nov 17 2020 - 08:38:45 EST


From: Peter Zijlstra <peterz@xxxxxxxxxxxxx>

[ Upstream commit ce0f17fc93f63ee91428af10b7b2ddef38cd19e5 ]

One should use in_serving_softirq() to detect SoftIRQ context.

Fixes: 96f6d4444302 ("perf_counter: avoid recursion")
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Link: https://lkml.kernel.org/r/20201030151955.120572175@xxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
kernel/events/internal.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/events/internal.h b/kernel/events/internal.h
index fcbf5616a4411..402054e755f27 100644
--- a/kernel/events/internal.h
+++ b/kernel/events/internal.h
@@ -211,7 +211,7 @@ static inline int get_recursion_context(int *recursion)
rctx = 3;
else if (in_irq())
rctx = 2;
- else if (in_softirq())
+ else if (in_serving_softirq())
rctx = 1;
else
rctx = 0;
--
2.27.0