Hi Christophe.
On 6/19/26 4:28 PM, Christophe Leroy (CS GROUP) wrote:
powerpc/32 has HAVE_STATIC_CALL_INLINE, so
HAVE_PREEMPT_DYNAMIC_CALL has to be selected instead of
HAVE_PREEMPT_DYNAMIC_KEY for less overhead.
Do you have any way to quantify this overhead?
Fixes: 6ad7751537e8 ("powerpc: enable dynamic preemption")
Signed-off-by: Christophe Leroy (CS GROUP) <[email protected]>
---
arch/powerpc/Kconfig | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 81642206f7de..7475907cef5b 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -281,7 +281,8 @@ config PPC
select HAVE_PERF_EVENTS_NMI if PPC64
select HAVE_PERF_REGS
select HAVE_PERF_USER_STACK_DUMP
- select HAVE_PREEMPT_DYNAMIC_KEY
+ select HAVE_PREEMPT_DYNAMIC_CALL if PPC32
+ select HAVE_PREEMPT_DYNAMIC_KEY if PPC64
select HAVE_RETHOOK if KPROBES
select HAVE_REGS_AND_STACK_ACCESS_API
select HAVE_RELIABLE_STACKTRACE
Patch per se, looks good to me.
Reviewed-by: Shrikanth Hegde <[email protected]>
