From ceddee23be9fda04b928aa309fd95931bc4efb96 Mon Sep 17 00:00:00 2001 From: Robert Jennings Date: Thu, 22 Jul 2010 16:43:44 +0000 Subject: [PATCH] powerpc: ONLINE to OFFLINE CPU state transition during removal If a CPU remove is attempted using the 'release' interface on hardware which supports extended cede, the CPU will be put in the INACTIVE state rather than the OFFLINE state due to the default preferred_offline_state in that situation. In the INACTIVE state it will fail to be removed. This patch changes the preferred offline state to OFFLINE when an CPU is in the ONLINE state. After cpu_down() is called in dlpar_offline_cpu() the CPU will be OFFLINE and CPU removal can continue. Signed-off-by: Robert Jennings Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/platforms/pseries/dlpar.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c index d71e5858408..227c1c3d585 100644 --- a/arch/powerpc/platforms/pseries/dlpar.c +++ b/arch/powerpc/platforms/pseries/dlpar.c @@ -463,6 +463,7 @@ static int dlpar_offline_cpu(struct device_node *dn) break; if (get_cpu_current_state(cpu) == CPU_STATE_ONLINE) { + set_preferred_offline_state(cpu, CPU_STATE_OFFLINE); cpu_maps_update_done(); rc = cpu_down(cpu); if (rc) -- 2.11.4.GIT