[PATCH v2 0/1] powerpc, arm64: move preempt dynamic key into kernel/sched
Shrikanth Hegde
sshegde at linux.ibm.com
Wed Jul 16 19:47:44 AEST 2025
Current usage of preempt dynamic key is not specific to architecture and
can be moved into sched/core instead. Most of the code around it looks
similar. (same code for powerpc, arm64).
Since preemption is more associated with scheduler rather than
entry/exit, it is probably better it should be moved.
This is tested on powerVM PREEMPT_DYNAMIC=y/n and on arm64 by Mark
v1->v2:
- Rebase to 6.16-rc6
- Collected the tags
Ingo, Peter,
Can this go via tip sched tree?
Both arm64, powerpc have acked the changes and been tested.
Shrikanth Hegde (1):
sched: preempt: Move dynamic keys into kernel/sched
arch/arm64/include/asm/preempt.h | 1 -
arch/arm64/kernel/entry-common.c | 8 --------
arch/powerpc/include/asm/preempt.h | 16 ----------------
arch/powerpc/kernel/interrupt.c | 4 ----
include/linux/irq-entry-common.h | 1 -
include/linux/sched.h | 8 ++++++++
kernel/entry/common.c | 1 -
kernel/sched/core.c | 4 ++++
8 files changed, 12 insertions(+), 31 deletions(-)
delete mode 100644 arch/powerpc/include/asm/preempt.h
--
2.43.0
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