Merge 'Linux v3.0' into Litmus

Some notes:
* Litmus^RT scheduling class is the topmost scheduling class
  (above stop_sched_class).
* scheduler_ipi() function (e.g., in smp_reschedule_interrupt())
  may increase IPI latencies.
* Added path into schedule() to quickly re-evaluate scheduling
  decision without becoming preemptive again. This used to be
  a standard path before the removal of BKL.

Conflicts:
	Makefile
	arch/arm/kernel/calls.S
	arch/arm/kernel/smp.c
	arch/x86/include/asm/unistd_32.h
	arch/x86/kernel/smp.c
	arch/x86/kernel/syscall_table_32.S
	include/linux/hrtimer.h
	kernel/printk.c
	kernel/sched.c
	kernel/sched_fair.c

1 files changed, 12 insertions, 17 deletions

diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 4de84ce3a927..6cd5b6403a7b 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -148,9 +148,7 @@ struct acpi_device_flags {
         u32 suprise_removal_ok:1;
         u32 power_manageable:1;
         u32 performance_manageable:1;
-        u32 wake_capable:1;     /* Wakeup(_PRW) supported? */
-        u32 force_power_state:1;
-        u32 reserved:22;
+        u32 reserved:24;
 };
 
 /* File System */
@@ -184,7 +182,7 @@ struct acpi_device_pnp {
 
 #define acpi_device_bid(d)      ((d)->pnp.bus_id)
 #define acpi_device_adr(d)      ((d)->pnp.bus_address)
-char *acpi_device_hid(struct acpi_device *device);
+const char *acpi_device_hid(struct acpi_device *device);
 #define acpi_device_name(d)     ((d)->pnp.device_name)
 #define acpi_device_class(d)    ((d)->pnp.device_class)
 
@@ -212,7 +210,7 @@ struct acpi_device_power_state {
 struct acpi_device_power {
         int state;              /* Current state */
         struct acpi_device_power_flags flags;
-        struct acpi_device_power_state states[4];       /* Power states (D0-D3) */
+        struct acpi_device_power_state states[ACPI_D_STATE_COUNT];      /* Power states (D0-D3Cold) */
 };
 
 /* Performance Management */
@@ -242,23 +240,16 @@ struct acpi_device_perf {
 struct acpi_device_wakeup_flags {
         u8 valid:1;             /* Can successfully enable wakeup? */
         u8 run_wake:1;          /* Run-Wake GPE devices */
-        u8 always_enabled:1;    /* Run-wake devices that are always enabled */
         u8 notifier_present:1;  /* Wake-up notify handler has been installed */
 };
 
-struct acpi_device_wakeup_state {
-        u8 enabled:1;
-};
-
 struct acpi_device_wakeup {
         acpi_handle gpe_device;
         u64 gpe_number;
         u64 sleep_state;
         struct acpi_handle_list resources;
-        struct acpi_device_wakeup_state state;
         struct acpi_device_wakeup_flags flags;
         int prepare_count;
-        int run_wake_count;
 };
 
 /* Device */
@@ -328,8 +319,8 @@ void acpi_bus_data_handler(acpi_handle handle, void *context);
 acpi_status acpi_bus_get_status_handle(acpi_handle handle,
                                        unsigned long long *sta);
 int acpi_bus_get_status(struct acpi_device *device);
-int acpi_bus_get_power(acpi_handle handle, int *state);
 int acpi_bus_set_power(acpi_handle handle, int state);
+int acpi_bus_update_power(acpi_handle handle, int *state_p);
 bool acpi_bus_power_manageable(acpi_handle handle);
 bool acpi_bus_can_wakeup(acpi_handle handle);
 #ifdef CONFIG_ACPI_PROC_EVENT
@@ -389,21 +380,25 @@ struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle);
 int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state);
 int acpi_disable_wakeup_device_power(struct acpi_device *dev);
 
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_PM
 int acpi_pm_device_sleep_state(struct device *, int *);
-int acpi_pm_device_sleep_wake(struct device *, bool);
-#else /* !CONFIG_PM_SLEEP */
+#else
 static inline int acpi_pm_device_sleep_state(struct device *d, int *p)
 {
         if (p)
                 *p = ACPI_STATE_D0;
         return ACPI_STATE_D3;
 }
+#endif
+
+#ifdef CONFIG_PM_SLEEP
+int acpi_pm_device_sleep_wake(struct device *, bool);
+#else
 static inline int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
 {
         return -ENODEV;
 }
-#endif /* !CONFIG_PM_SLEEP */
+#endif
 
 #endif                          /* CONFIG_ACPI */