[PATCH v3 7/7] riscv: ftrace: support PREEMPT

Andy Chiu posted 7 patches 1 year ago
[PATCH v3 7/7] riscv: ftrace: support PREEMPT
Posted by Andy Chiu 1 year ago
From: Andy Chiu <andy.chiu@sifive.com>

Now, we can safely enable dynamic ftrace with kernel preemption.

Signed-off-by: Andy Chiu <andy.chiu@sifive.com>
---
 arch/riscv/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 75a5ebde4427..554e4e363c54 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -148,7 +148,7 @@ config RISCV
 	select HAVE_FTRACE_MCOUNT_RECORD if !XIP_KERNEL
 	select HAVE_FUNCTION_GRAPH_TRACER
 	select HAVE_FUNCTION_GRAPH_RETVAL if HAVE_FUNCTION_GRAPH_TRACER
-	select HAVE_FUNCTION_TRACER if !XIP_KERNEL && !PREEMPTION
+	select HAVE_FUNCTION_TRACER if !XIP_KERNEL
 	select HAVE_EBPF_JIT if MMU
 	select HAVE_GUP_FAST if MMU
 	select HAVE_FUNCTION_ARG_ACCESS_API
-- 
2.39.3 (Apple Git-145)
Re: [PATCH v3 7/7] riscv: ftrace: support PREEMPT
Posted by Björn Töpel 9 months, 1 week ago
Andy Chiu <andybnac@gmail.com> writes:

> From: Andy Chiu <andy.chiu@sifive.com>
>
> Now, we can safely enable dynamic ftrace with kernel preemption.
>
> Signed-off-by: Andy Chiu <andy.chiu@sifive.com>

Reviewed-by: Björn Töpel <bjorn@rivosinc.com>