diff options
| -rw-r--r-- | include/linux/cpu.h | 33 | ||||
| -rw-r--r-- | include/linux/notifier.h | 34 | ||||
| -rw-r--r-- | net/rds/page.c | 1 |
3 files changed, 36 insertions, 32 deletions
diff --git a/include/linux/cpu.h b/include/linux/cpu.h index 5f09323ee88..b1a635acf72 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -70,6 +70,39 @@ enum { CPU_PRI_WORKQUEUE = 5, }; +#define CPU_ONLINE 0x0002 /* CPU (unsigned)v is up */ +#define CPU_UP_PREPARE 0x0003 /* CPU (unsigned)v coming up */ +#define CPU_UP_CANCELED 0x0004 /* CPU (unsigned)v NOT coming up */ +#define CPU_DOWN_PREPARE 0x0005 /* CPU (unsigned)v going down */ +#define CPU_DOWN_FAILED 0x0006 /* CPU (unsigned)v NOT going down */ +#define CPU_DEAD 0x0007 /* CPU (unsigned)v dead */ +#define CPU_DYING 0x0008 /* CPU (unsigned)v not running any task, + * not handling interrupts, soon dead. + * Called on the dying cpu, interrupts + * are already disabled. Must not + * sleep, must not fail */ +#define CPU_POST_DEAD 0x0009 /* CPU (unsigned)v dead, cpu_hotplug + * lock is dropped */ +#define CPU_STARTING 0x000A /* CPU (unsigned)v soon running. + * Called on the new cpu, just before + * enabling interrupts. Must not sleep, + * must not fail */ + +/* Used for CPU hotplug events occurring while tasks are frozen due to a suspend + * operation in progress + */ +#define CPU_TASKS_FROZEN 0x0010 + +#define CPU_ONLINE_FROZEN (CPU_ONLINE | CPU_TASKS_FROZEN) +#define CPU_UP_PREPARE_FROZEN (CPU_UP_PREPARE | CPU_TASKS_FROZEN) +#define CPU_UP_CANCELED_FROZEN (CPU_UP_CANCELED | CPU_TASKS_FROZEN) +#define CPU_DOWN_PREPARE_FROZEN (CPU_DOWN_PREPARE | CPU_TASKS_FROZEN) +#define CPU_DOWN_FAILED_FROZEN (CPU_DOWN_FAILED | CPU_TASKS_FROZEN) +#define CPU_DEAD_FROZEN (CPU_DEAD | CPU_TASKS_FROZEN) +#define CPU_DYING_FROZEN (CPU_DYING | CPU_TASKS_FROZEN) +#define CPU_STARTING_FROZEN (CPU_STARTING | CPU_TASKS_FROZEN) + + #ifdef CONFIG_SMP /* Need to know about CPUs going up/down? */ #if defined(CONFIG_HOTPLUG_CPU) || !defined(MODULE) diff --git a/include/linux/notifier.h b/include/linux/notifier.h index c0688b0168b..9eb25fc0145 100644 --- a/include/linux/notifier.h +++ b/include/linux/notifier.h @@ -185,6 +185,8 @@ static inline int notifier_to_errno(int ret) * VC switch chains (for loadable kernel svgalib VC switch helpers) etc... */ +/* CPU notfiers are defined in include/linux/cpu.h. */ + /* netdevice notifier chain. Please remember to update the rtnetlink * notification exclusion list in rtnetlink_event() when adding new * types. @@ -220,38 +222,6 @@ static inline int notifier_to_errno(int ret) #define NETLINK_URELEASE 0x0001 /* Unicast netlink socket released */ -#define CPU_ONLINE 0x0002 /* CPU (unsigned)v is up */ -#define CPU_UP_PREPARE 0x0003 /* CPU (unsigned)v coming up */ -#define CPU_UP_CANCELED 0x0004 /* CPU (unsigned)v NOT coming up */ -#define CPU_DOWN_PREPARE 0x0005 /* CPU (unsigned)v going down */ -#define CPU_DOWN_FAILED 0x0006 /* CPU (unsigned)v NOT going down */ -#define CPU_DEAD 0x0007 /* CPU (unsigned)v dead */ -#define CPU_DYING 0x0008 /* CPU (unsigned)v not running any task, - * not handling interrupts, soon dead. - * Called on the dying cpu, interrupts - * are already disabled. Must not - * sleep, must not fail */ -#define CPU_POST_DEAD 0x0009 /* CPU (unsigned)v dead, cpu_hotplug - * lock is dropped */ -#define CPU_STARTING 0x000A /* CPU (unsigned)v soon running. - * Called on the new cpu, just before - * enabling interrupts. Must not sleep, - * must not fail */ - -/* Used for CPU hotplug events occurring while tasks are frozen due to a suspend - * operation in progress - */ -#define CPU_TASKS_FROZEN 0x0010 - -#define CPU_ONLINE_FROZEN (CPU_ONLINE | CPU_TASKS_FROZEN) -#define CPU_UP_PREPARE_FROZEN (CPU_UP_PREPARE | CPU_TASKS_FROZEN) -#define CPU_UP_CANCELED_FROZEN (CPU_UP_CANCELED | CPU_TASKS_FROZEN) -#define CPU_DOWN_PREPARE_FROZEN (CPU_DOWN_PREPARE | CPU_TASKS_FROZEN) -#define CPU_DOWN_FAILED_FROZEN (CPU_DOWN_FAILED | CPU_TASKS_FROZEN) -#define CPU_DEAD_FROZEN (CPU_DEAD | CPU_TASKS_FROZEN) -#define CPU_DYING_FROZEN (CPU_DYING | CPU_TASKS_FROZEN) -#define CPU_STARTING_FROZEN (CPU_STARTING | CPU_TASKS_FROZEN) - /* Hibernation and suspend events */ #define PM_HIBERNATION_PREPARE 0x0001 /* Going to hibernate */ #define PM_POST_HIBERNATION 0x0002 /* Hibernation finished */ diff --git a/net/rds/page.c b/net/rds/page.c index d8acdebe3c7..b82d63e77b0 100644 --- a/net/rds/page.c +++ b/net/rds/page.c @@ -32,6 +32,7 @@ */ #include <linux/highmem.h> #include <linux/gfp.h> +#include <linux/cpu.h> #include "rds.h" |