The following commit has been merged into the perf/urgent branch of tip:

Commit-ID:     ce0f17fc93f63ee91428af10b7b2ddef38cd19e5
Gitweb:        
https://git.kernel.org/tip/ce0f17fc93f63ee91428af10b7b2ddef38cd19e5
Author:        Peter Zijlstra <[email protected]>
AuthorDate:    Fri, 30 Oct 2020 12:49:45 +01:00
Committer:     Peter Zijlstra <[email protected]>
CommitterDate: Mon, 09 Nov 2020 18:12:34 +01:00

perf: Fix get_recursion_context()

One should use in_serving_softirq() to detect SoftIRQ context.

Fixes: 96f6d4444302 ("perf_counter: avoid recursion")
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
---
 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 fcbf561..402054e 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;

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