I propose removing the "extended cede" offline mode for CPUs as well as the partition suspend code which accommodates it by temporarily onlining all CPUs prior to suspending the LPAR.
Detailed justifications are within the individual commit messages. I'm hoping to move the pseries partition suspend implementation to the Linux suspend framework, and I expect that having only one offline mode for CPUs will make that task quite a bit less complex. Nathan Lynch (2): powerpc/pseries: remove cede offline state for CPUs powerpc/rtas: don't online CPUs for partition suspend Documentation/core-api/cpu_hotplug.rst | 7 - arch/powerpc/include/asm/rtas.h | 2 - arch/powerpc/kernel/rtas.c | 122 +------------ arch/powerpc/platforms/pseries/hotplug-cpu.c | 170 ++---------------- .../platforms/pseries/offline_states.h | 38 ---- arch/powerpc/platforms/pseries/pmem.c | 1 - arch/powerpc/platforms/pseries/smp.c | 28 +-- arch/powerpc/platforms/pseries/suspend.c | 22 +-- 8 files changed, 18 insertions(+), 372 deletions(-) delete mode 100644 arch/powerpc/platforms/pseries/offline_states.h -- 2.25.4
