From 72486f1f8f0a2bc828b9d30cf4690cf2dd6807fc Mon Sep 17 00:00:00 2001 From: "Siddha, Suresh B" Date: Thu, 7 Dec 2006 02:14:10 +0100 Subject: [PATCH] [PATCH] i386: change the 'no_control' field to 'hotpluggable' in the struct cpu Change the 'no_control' field in the cpu struct to a more positive and better term 'hotpluggable'. And change(/cleanup) the logic accordingly. Signed-off-by: Suresh Siddha Signed-off-by: Andi Kleen Cc: Andi Kleen Cc: "Li, Shaohua" Signed-off-by: Andrew Morton --- arch/i386/kernel/topology.c | 4 ++-- arch/ia64/kernel/topology.c | 8 ++++---- arch/powerpc/kernel/sysfs.c | 8 ++++---- drivers/base/cpu.c | 6 +++--- include/linux/cpu.h | 2 +- 5 files changed, 14 insertions(+), 14 deletions(-) diff --git a/arch/i386/kernel/topology.c b/arch/i386/kernel/topology.c index 844c08fdb22..79cf608e14c 100644 --- a/arch/i386/kernel/topology.c +++ b/arch/i386/kernel/topology.c @@ -44,8 +44,8 @@ int arch_register_cpu(int num) * Also certain PCI quirks require not to enable hotplug control * for all CPU's. */ - if (!num || !enable_cpu_hotplug) - cpu_devices[num].cpu.no_control = 1; + if (num && enable_cpu_hotplug) + cpu_devices[num].cpu.hotpluggable = 1; return register_cpu(&cpu_devices[num].cpu, num); } diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c index 5629b45e89c..687500ddb4b 100644 --- a/arch/ia64/kernel/topology.c +++ b/arch/ia64/kernel/topology.c @@ -31,11 +31,11 @@ int arch_register_cpu(int num) { #if defined (CONFIG_ACPI) && defined (CONFIG_HOTPLUG_CPU) /* - * If CPEI cannot be re-targetted, and this is - * CPEI target, then dont create the control file + * If CPEI can be re-targetted or if this is not + * CPEI target, then it is hotpluggable */ - if (!can_cpei_retarget() && is_cpu_cpei_target(num)) - sysfs_cpus[num].cpu.no_control = 1; + if (can_cpei_retarget() || !is_cpu_cpei_target(num)) + sysfs_cpus[num].cpu.hotpluggable = 1; map_cpu_to_node(num, node_cpuid[num].nid); #endif diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c index 22123a0d541..63ed265b7f0 100644 --- a/arch/powerpc/kernel/sysfs.c +++ b/arch/powerpc/kernel/sysfs.c @@ -239,7 +239,7 @@ static void unregister_cpu_online(unsigned int cpu) struct cpu *c = &per_cpu(cpu_devices, cpu); struct sys_device *s = &c->sysdev; - BUG_ON(c->no_control); + BUG_ON(!c->hotpluggable); if (!firmware_has_feature(FW_FEATURE_ISERIES) && cpu_has_feature(CPU_FTR_SMT)) @@ -424,10 +424,10 @@ static int __init topology_init(void) * CPU. For instance, the boot cpu might never be valid * for hotplugging. */ - if (!ppc_md.cpu_die) - c->no_control = 1; + if (ppc_md.cpu_die) + c->hotpluggable = 1; - if (cpu_online(cpu) || (c->no_control == 0)) { + if (cpu_online(cpu) || c->hotpluggable) { register_cpu(c, cpu); sysdev_create_file(&c->sysdev, &attr_physical_id); diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index 1f745f12f94..7fd095efaeb 100644 --- a/drivers/base/cpu.c +++ b/drivers/base/cpu.c @@ -104,8 +104,8 @@ static SYSDEV_ATTR(crash_notes, 0400, show_crash_notes, NULL); /* * register_cpu - Setup a driverfs device for a CPU. - * @cpu - Callers can set the cpu->no_control field to 1, to indicate not to - * generate a control file in sysfs for this CPU. + * @cpu - cpu->hotpluggable field set to 1 will generate a control file in + * sysfs for this CPU. * @num - CPU number to use when creating the device. * * Initialize and register the CPU device. @@ -119,7 +119,7 @@ int __devinit register_cpu(struct cpu *cpu, int num) error = sysdev_register(&cpu->sysdev); - if (!error && !cpu->no_control) + if (!error && cpu->hotpluggable) register_cpu_control(cpu); if (!error) cpu_sys_devices[num] = &cpu->sysdev; diff --git a/include/linux/cpu.h b/include/linux/cpu.h index f02d71bf689..ad90340e7db 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -27,7 +27,7 @@ struct cpu { int node_id; /* The node which contains the CPU */ - int no_control; /* Should the sysfs control file be created? */ + int hotpluggable; /* creates sysfs control file if hotpluggable */ struct sys_device sysdev; }; -- 2.20.1