Now that preempt=lazy patches[1] are in powerpc-next tree, sending out the patch to support dynamic preemption based on DYNAMIC_KEY. I am not sure when it was to be sent out exactly. So here it is.
Depends on [1] to be applied first, if not in the tree yet. Once the arch supports static inline calls, it would be needed to evaluate to see if that gives better performance. v1->v2: - Instead of copying asm-generic preempt.h content include it in arch/asm preempt.h. (Christophe Leroy) - Merge the patches into one patch (Christophe Leroy) v1: https://lore.kernel.org/all/20241125042212.1522315-1-sshe...@linux.ibm.com/ [1]: https://lore.kernel.org/all/173572211264.1875638.9927288574435880962.b4...@linux.ibm.com/ Shrikanth Hegde (1): powerpc: Enable dynamic preemption arch/powerpc/Kconfig | 1 + arch/powerpc/include/asm/preempt.h | 11 +++++++++++ arch/powerpc/kernel/interrupt.c | 6 +++++- arch/powerpc/kernel/traps.c | 6 +++++- arch/powerpc/lib/vmx-helper.c | 2 +- 5 files changed, 23 insertions(+), 3 deletions(-) create mode 100644 arch/powerpc/include/asm/preempt.h -- 2.39.3
