preempt=lazy has been merged into tip[1]. Lets Enable it for PowerPC. This has been very lightly tested and as michael suggested could go through a test cycle. If needed, patches can be merged. I have kept it separate for easier bisect.
Lazy preemption support for kvm on powerpc is still to be done. Refs: [1]: https://lore.kernel.org/lkml/20241007074609.447006...@infradead.org/ v1: https://lore.kernel.org/all/20241108101853.277808-1-sshe...@linux.ibm.com/ Changes since v1: - Change for vmx copy as suggested by Sebastian. - Add rwb tags Shrikanth Hegde (2): powerpc: Add preempt lazy support powerpc: Large user copy aware of full:rt:lazy preemption arch/powerpc/Kconfig | 1 + arch/powerpc/include/asm/thread_info.h | 9 ++++++--- arch/powerpc/kernel/interrupt.c | 4 ++-- arch/powerpc/lib/vmx-helper.c | 2 +- 4 files changed, 10 insertions(+), 6 deletions(-) -- 2.43.5
