[PATCH 0/1] powerpc, arm64: move preempt dynamic key into kernel/sched

Shrikanth Hegde sshegde at linux.ibm.com
Tue Jun 10 00:53:43 PDT 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 that they should be moved. 

This is tested on powerVM PREEMPT_DYNAMIC=y/n. 

Only Compile tested on arm64. It would be great if someone can test both 
PREEMPT_DYNAMIC=y/n configs there.

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/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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