Merge commit 'v2.6.35' into perf/core

Conflicts:
	tools/perf/Makefile
	tools/perf/util/hist.c

Merge reason: Resolve the conflicts and update to latest upstream.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

92 files changed, 658 insertions, 238 deletions

diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c
index d97b8dce166..18b3f1468b7 100644
--- a/drivers/acpi/acpica/evxfevnt.c
+++ b/drivers/acpi/acpica/evxfevnt.c
@@ -70,6 +70,7 @@ acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 acpi_status acpi_enable(void)
 {
 	acpi_status status;
+	int retry;
 
 	ACPI_FUNCTION_TRACE(acpi_enable);
 
@@ -98,16 +99,18 @@ acpi_status acpi_enable(void)
 
 	/* Sanity check that transition succeeded */
 
-	if (acpi_hw_get_mode() != ACPI_SYS_MODE_ACPI) {
-		ACPI_ERROR((AE_INFO,
-			    "Hardware did not enter ACPI mode"));
-		return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
+	for (retry = 0; retry < 30000; ++retry) {
+		if (acpi_hw_get_mode() == ACPI_SYS_MODE_ACPI) {
+			if (retry != 0)
+				ACPI_WARNING((AE_INFO,
+				"Platform took > %d00 usec to enter ACPI mode", retry));
+			return_ACPI_STATUS(AE_OK);
+		}
+		acpi_os_stall(100);	/* 100 usec */
 	}
 
-	ACPI_DEBUG_PRINT((ACPI_DB_INIT,
-			  "Transition to ACPI mode successful\n"));
-
-	return_ACPI_STATUS(AE_OK);
+	ACPI_ERROR((AE_INFO, "Hardware did not enter ACPI mode"));
+	return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
 }
 
 ACPI_EXPORT_SYMBOL(acpi_enable)
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 3026e3fa83e..dc58402b0a1 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -868,9 +868,15 @@ static void acpi_battery_remove_fs(struct acpi_device *device)
 static void acpi_battery_notify(struct acpi_device *device, u32 event)
 {
 	struct acpi_battery *battery = acpi_driver_data(device);
+#ifdef CONFIG_ACPI_SYSFS_POWER
+	struct device *old;
+#endif
 
 	if (!battery)
 		return;
+#ifdef CONFIG_ACPI_SYSFS_POWER
+	old = battery->bat.dev;
+#endif
 	acpi_battery_update(battery);
 	acpi_bus_generate_proc_event(device, event,
 				     acpi_battery_present(battery));
@@ -879,7 +885,7 @@ static void acpi_battery_notify(struct acpi_device *device, u32 event)
 					acpi_battery_present(battery));
 #ifdef CONFIG_ACPI_SYSFS_POWER
 	/* acpi_battery_update could remove power_supply object */
-	if (battery->bat.dev)
+	if (old && battery->bat.dev)
 		power_supply_changed(&battery->bat);
 #endif
 }
diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index 01381be05e9..2bb28b9d91c 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -214,7 +214,7 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 	.ident = "Sony VGN-SR290J",
 	.matches = {
 		     DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
-		     DMI_MATCH(DMI_PRODUCT_NAME, "Sony VGN-SR290J"),
+		     DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR290J"),
 		},
 	},
 	{
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 51284351418..e9699aaed10 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -223,7 +223,7 @@ static bool processor_physically_present(acpi_handle handle)
 	type = (acpi_type == ACPI_TYPE_DEVICE) ? 1 : 0;
 	cpuid = acpi_get_cpuid(handle, type, acpi_id);
 
-	if (cpuid == -1)
+	if ((cpuid == -1) && (num_possible_cpus() > 1))
 		return false;
 
 	return true;
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index b1b385692f4..e9a8026d39f 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -76,14 +76,19 @@ static unsigned int max_cstate __read_mostly = ACPI_PROCESSOR_MAX_POWER;
 module_param(max_cstate, uint, 0000);
 static unsigned int nocst __read_mostly;
 module_param(nocst, uint, 0000);
+static int bm_check_disable __read_mostly;
+module_param(bm_check_disable, uint, 0000);
 
 static unsigned int latency_factor __read_mostly = 2;
 module_param(latency_factor, uint, 0644);
 
+#ifdef CONFIG_ACPI_PROCFS
 static u64 us_to_pm_timer_ticks(s64 t)
 {
 	return div64_u64(t * PM_TIMER_FREQUENCY, 1000000);
 }
+#endif
+
 /*
  * IBM ThinkPad R40e crashes mysteriously when going into C2 or C3.
  * For now disable this. Probably a bug somewhere else.
@@ -763,6 +768,9 @@ static int acpi_idle_bm_check(void)
 {
 	u32 bm_status = 0;
 
+	if (bm_check_disable)
+		return 0;
+
 	acpi_read_bit_register(ACPI_BITREG_BUS_MASTER_STATUS, &bm_status);
 	if (bm_status)
 		acpi_write_bit_register(ACPI_BITREG_BUS_MASTER_STATUS, 1);
@@ -947,7 +955,7 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
 	if (acpi_idle_suspend)
 		return(acpi_idle_enter_c1(dev, state));
 
-	if (acpi_idle_bm_check()) {
+	if (!cx->bm_sts_skip && acpi_idle_bm_check()) {
 		if (dev->safe_state) {
 			dev->last_state = dev->safe_state;
 			return dev->safe_state->enter(dev, dev->safe_state);
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 5b7c52e4a00..2862c781b37 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -82,6 +82,20 @@ static int acpi_sleep_prepare(u32 acpi_state)
 static u32 acpi_target_sleep_state = ACPI_STATE_S0;
 
 /*
+ * The ACPI specification wants us to save NVS memory regions during hibernation
+ * and to restore them during the subsequent resume.  Windows does that also for
+ * suspend to RAM.  However, it is known that this mechanism does not work on
+ * all machines, so we allow the user to disable it with the help of the
+ * 'acpi_sleep=nonvs' kernel command line option.
+ */
+static bool nvs_nosave;
+
+void __init acpi_nvs_nosave(void)
+{
+	nvs_nosave = true;
+}
+
+/*
  * ACPI 1.0 wants us to execute _PTS before suspending devices, so we allow the
  * user to request that behavior by using the 'acpi_old_suspend_ordering'
  * kernel command line option that causes the following variable to be set.
@@ -197,8 +211,7 @@ static int acpi_suspend_begin(suspend_state_t pm_state)
 	u32 acpi_state = acpi_suspend_states[pm_state];
 	int error = 0;
 
-	error = suspend_nvs_alloc();
-
+	error = nvs_nosave ? 0 : suspend_nvs_alloc();
 	if (error)
 		return error;
 
@@ -388,20 +401,6 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
 #endif /* CONFIG_SUSPEND */
 
 #ifdef CONFIG_HIBERNATION
-/*
- * The ACPI specification wants us to save NVS memory regions during hibernation
- * and to restore them during the subsequent resume.  However, it is not certain
- * if this mechanism is going to work on all machines, so we allow the user to
- * disable this mechanism using the 'acpi_sleep=s4_nonvs' kernel command line
- * option.
- */
-static bool s4_no_nvs;
-
-void __init acpi_s4_no_nvs(void)
-{
-	s4_no_nvs = true;
-}
-
 static unsigned long s4_hardware_signature;
 static struct acpi_table_facs *facs;
 static bool nosigcheck;
@@ -415,7 +414,7 @@ static int acpi_hibernation_begin(void)
 {
 	int error;
 
-	error = s4_no_nvs ? 0 : suspend_nvs_alloc();
+	error = nvs_nosave ? 0 : suspend_nvs_alloc();
 	if (!error) {
 		acpi_target_sleep_state = ACPI_STATE_S4;
 		acpi_sleep_tts_switch(acpi_target_sleep_state);
@@ -510,7 +509,7 @@ static int acpi_hibernation_begin_old(void)
 	error = acpi_sleep_prepare(ACPI_STATE_S4);
 
 	if (!error) {
-		if (!s4_no_nvs)
+		if (!nvs_nosave)
 			error = suspend_nvs_alloc();
 		if (!error)
 			acpi_target_sleep_state = ACPI_STATE_S4;
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 9630fbdf4e6..9b9d3bd54e3 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -673,7 +673,7 @@ static struct kobject *get_device_parent(struct device *dev,
 		 */
 		if (parent == NULL)
 			parent_kobj = virtual_device_parent(dev);
-		else if (parent->class)
+		else if (parent->class && !dev->class->ns_type)
 			return &parent->kobj;
 		else
 			parent_kobj = &parent->kobj;
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 9344216183a..a7547150a70 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -1216,17 +1216,20 @@ static int intel_i915_get_gtt_size(void)
 
 		/* G33's GTT size defined in gmch_ctrl */
 		pci_read_config_word(agp_bridge->dev, I830_GMCH_CTRL, &gmch_ctrl);
-		switch (gmch_ctrl & G33_PGETBL_SIZE_MASK) {
-		case G33_PGETBL_SIZE_1M:
+		switch (gmch_ctrl & I830_GMCH_GMS_MASK) {
+		case I830_GMCH_GMS_STOLEN_512:
+			size = 512;
+			break;
+		case I830_GMCH_GMS_STOLEN_1024:
 			size = 1024;
 			break;
-		case G33_PGETBL_SIZE_2M:
-			size = 2048;
+		case I830_GMCH_GMS_STOLEN_8192:
+			size = 8*1024;
 			break;
 		default:
 			dev_info(&agp_bridge->dev->dev,
 				 "unknown page table size 0x%x, assuming 512KB\n",
-				(gmch_ctrl & G33_PGETBL_SIZE_MASK));
+				(gmch_ctrl & I830_GMCH_GMS_MASK));
 			size = 512;
 		}
 	} else {
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index 5d64e3acb00..878ac0c2cc6 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -493,7 +493,7 @@ static void __sysrq_put_key_op(int key, struct sysrq_key_op *op_p)
                 sysrq_key_table[i] = op_p;
 }
 
-static void __handle_sysrq(int key, struct tty_struct *tty, int check_mask)
+void __handle_sysrq(int key, struct tty_struct *tty, int check_mask)
 {
 	struct sysrq_key_op *op_p;
 	int orig_log_level;
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index 24314a9cffe..1030f842013 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -623,7 +623,14 @@ static int tpm_tis_pnp_suspend(struct pnp_dev *dev, pm_message_t msg)
 
 static int tpm_tis_pnp_resume(struct pnp_dev *dev)
 {
-	return tpm_pm_resume(&dev->dev);
+	struct tpm_chip *chip = pnp_get_drvdata(dev);
+	int ret;
+
+	ret = tpm_pm_resume(&dev->dev);
+	if (!ret)
+		tpm_continue_selftest(chip);
+
+	return ret;
 }
 
 static struct pnp_device_id tpm_pnp_tbl[] __devinitdata = {
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 4ed665725cc..e59cb470914 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1080,6 +1080,7 @@ err_out_unregister:
 
 err_unlock_policy:
 	unlock_policy_rwsem_write(cpu);
+	free_cpumask_var(policy->related_cpus);
 err_free_cpumask:
 	free_cpumask_var(policy->cpus);
 err_free_policy:
@@ -1765,17 +1766,8 @@ static int __cpufreq_set_policy(struct cpufreq_policy *data,
 			dprintk("governor switch\n");
 
 			/* end old governor */
-			if (data->governor) {
-				/*
-				 * Need to release the rwsem around governor
-				 * stop due to lock dependency between
-				 * cancel_delayed_work_sync and the read lock
-				 * taken in the delayed work handler.
-				 */
-				unlock_policy_rwsem_write(data->cpu);
+			if (data->governor)
 				__cpufreq_governor(data, CPUFREQ_GOV_STOP);
-				lock_policy_rwsem_write(data->cpu);
-			}
 
 			/* start new governor */
 			data->governor = policy->governor;
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 637c105f53d..bd78acf3c36 100644
--- a/drivers/crypto/talitos.c
+++ b/