Merge branch 'akpm/master'

49 files changed, 605 insertions, 381 deletions

diff --git a/Documentation/ABI/testing/sysfs-class-bdi b/Documentation/ABI/testing/sysfs-class-bdi
index d773d5697cf5..3187a18af6da 100644
--- a/Documentation/ABI/testing/sysfs-class-bdi
+++ b/Documentation/ABI/testing/sysfs-class-bdi
@@ -53,3 +53,11 @@ stable_pages_required (read-only)
 
 	If set, the backing device requires that all pages comprising a write
 	request must not be changed until writeout is complete.
+
+strictlimit (read-write)
+
+	Forces per-BDI checks for the share of given device in the write-back
+	cache even before the global background dirty limit is reached. This
+	is useful in situations where the global limit is much higher than
+	affordable for given relatively slow (or untrusted) device. Turning
+	strictlimit on has no visible effect if max_ratio is equal to 100%.
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 15b8469a7e14..833008749bc4 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -3104,6 +3104,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			[KNL] Should the soft-lockup detector generate panics.
 			Format: <integer>
 
+	softlockup_all_cpu_backtrace=
+			[KNL] Should the soft-lockup detector generate
+			backtraces on all cpus.
+			Format: <integer>
+
 	sonypi.*=	[HW] Sony Programmable I/O Control Device driver
 			See Documentation/laptops/sonypi.txt
 
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
index 708bb7f1b7e0..c14374e71775 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -75,6 +75,7 @@ show up in /proc/sys/kernel:
 - shmall
 - shmmax                      [ sysv ipc ]
 - shmmni
+- softlockup_all_cpu_backtrace
 - stop-a                      [ SPARC only ]
 - sysrq                       ==> Documentation/sysrq.txt
 - sysctl_writes_strict
@@ -783,6 +784,22 @@ via the /proc/sys interface:
 
 ==============================================================
 
+softlockup_all_cpu_backtrace:
+
+This value controls the soft lockup detector thread's behavior
+when a soft lockup condition is detected as to whether or not
+to gather further debug information. If enabled, each cpu will
+be issued an NMI and instructed to capture stack trace.
+
+This feature is only applicable for architectures which support
+NMI.
+
+0: do nothing. This is the default behavior.
+
+1: on detection capture more debug information.
+
+==============================================================
+
 tainted:
 
 Non-zero if the kernel has been tainted.  Numeric values, which
diff --git a/arch/arm/kernel/isa.c b/arch/arm/kernel/isa.c
index 346485910732..9d1cf7156895 100644
--- a/arch/arm/kernel/isa.c
+++ b/arch/arm/kernel/isa.c
@@ -20,7 +20,7 @@
 
 static unsigned int isa_membase, isa_portbase, isa_portshift;
 
-static ctl_table ctl_isa_vars[4] = {
+static struct ctl_table ctl_isa_vars[4] = {
 	{
 		.procname	= "membase",
 		.data		= &isa_membase, 
@@ -44,7 +44,7 @@ static ctl_table ctl_isa_vars[4] = {
 
 static struct ctl_table_header *isa_sysctl_header;
 
-static ctl_table ctl_isa[2] = {
+static struct ctl_table ctl_isa[2] = {
 	{
 		.procname	= "isa",
 		.mode		= 0555,
@@ -52,7 +52,7 @@ static ctl_table ctl_isa[2] = {
 	}, {}
 };
 
-static ctl_table ctl_bus[2] = {
+static struct ctl_table ctl_bus[2] = {
 	{
 		.procname	= "bus",
 		.mode		= 0555,
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 928d596d9ab4..f11dd61dfa07 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -153,7 +153,6 @@ EXPORT_SYMBOL(arm_dma_zone_size);
  * allocations.  This must be the smallest DMA mask in the system,
  * so a successful GFP_DMA allocation will always satisfy this.
  */
-phys_addr_t arm_dma_limit;
 unsigned long arm_dma_pfn_limit;
 
 static void __init arm_adjust_dma_zone(unsigned long *size, unsigned long *hole,
@@ -172,6 +171,8 @@ static void __init arm_adjust_dma_zone(unsigned long *size, unsigned long *hole,
 void __init setup_dma_zone(const struct machine_desc *mdesc)
 {
 #ifdef CONFIG_ZONE_DMA
+	phys_addr_t arm_dma_limit;
+
 	if (mdesc->dma_zone_size) {
 		arm_dma_zone_size = mdesc->dma_zone_size;
 		arm_dma_limit = PHYS_OFFSET + arm_dma_zone_size - 1;
@@ -328,7 +329,8 @@ void __init arm_memblock_init(struct meminfo *mi,
 	 * reserve memory for DMA contigouos allocations,
 	 * must come from DMA area inside low memory
 	 */
-	dma_contiguous_reserve(min(arm_dma_limit, arm_lowmem_limit));
+	dma_contiguous_reserve(min((phys_addr_t)arm_dma_pfn_limit << PAGE_SHIFT,
+				   arm_lowmem_limit));
 
 	arm_memblock_steal_permitted = false;
 	memblock_dump_all();
diff --git a/arch/arm/mm/mm.h b/arch/arm/mm/mm.h
index 7ea641b7aa7d..64a40d63cad5 100644
--- a/arch/arm/mm/mm.h
+++ b/arch/arm/mm/mm.h
@@ -81,10 +81,8 @@ extern __init void add_static_vm_early(struct static_vm *svm);
 #endif
 
 #ifdef CONFIG_ZONE_DMA
-extern phys_addr_t arm_dma_limit;
 extern unsigned long arm_dma_pfn_limit;
 #else
-#define arm_dma_limit ((phys_addr_t)~0)
 #define arm_dma_pfn_limit (~0ul >> PAGE_SHIFT)
 #endif
 
diff --git a/arch/blackfin/kernel/ptrace.c b/arch/blackfin/kernel/ptrace.c
index e1f88e028cfe..8b8fe671b1a6 100644
--- a/arch/blackfin/kernel/ptrace.c
+++ b/arch/blackfin/kernel/ptrace.c
@@ -117,6 +117,7 @@ put_reg(struct task_struct *task, unsigned long regno, unsigned long data)
 int
 is_user_addr_valid(struct task_struct *child, unsigned long start, unsigned long len)
 {
+	bool valid;
 	struct vm_area_struct *vma;
 	struct sram_list_struct *sraml;
 
@@ -124,9 +125,12 @@ is_user_addr_valid(struct task_struct *child, unsigned long start, unsigned long
 	if (start + len < start)
 		return -EIO;
 
+	down_read(&child->mm->mmap_sem);
 	vma = find_vma(child->mm, start);
-	if (vma && start >= vma->vm_start && start + len <= vma->vm_end)
-			return 0;
+	valid = vma && start >= vma->vm_start && start + len <= vma->vm_end;
+	up_read(&child->mm->mmap_sem);
+	if (valid)
+		return 0;
 
 	for (sraml = child->mm->context.sram_list; sraml; sraml = sraml->next)
 		if (start >= (unsigned long)sraml->addr
diff --git a/arch/ia64/kernel/crash.c b/arch/ia64/kernel/crash.c
index b942f4032d7a..2955f359e2a7 100644
--- a/arch/ia64/kernel/crash.c
+++ b/arch/ia64/kernel/crash.c
@@ -237,7 +237,7 @@ kdump_init_notifier(struct notifier_block *self, unsigned long val, void *data)
 }
 
 #ifdef CONFIG_SYSCTL
-static ctl_table kdump_ctl_table[] = {
+static struct ctl_table kdump_ctl_table[] = {
 	{
 		.procname = "kdump_on_init",
 		.data = &kdump_on_init,
@@ -255,7 +255,7 @@ static ctl_table kdump_ctl_table[] = {
 	{ }
 };
 
-static ctl_table sys_table[] = {
+static struct ctl_table sys_table[] = {
 	{
 	  .procname = "kernel",
 	  .mode = 0555,
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index d841c4bd6864..5845ffea67c3 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -521,7 +521,7 @@ static pmu_config_t		*pmu_conf;
 pfm_sysctl_t pfm_sysctl;
 EXPORT_SYMBOL(pfm_sysctl);
 
-static ctl_table pfm_ctl_table[]={
+static struct ctl_table pfm_ctl_table[] = {
 	{
 		.procname	= "debug",
 		.data		= &pfm_sysctl.debug,
@@ -552,7 +552,7 @@ static ctl_table pfm_ctl_table[]={
 	},
 	{}
 };
-static ctl_table pfm_sysctl_dir[] = {
+static struct ctl_table pfm_sysctl_dir[] = {
 	{
 		.procname	= "perfmon",
 		.mode		= 0555,
@@ -560,7 +560,7 @@ static ctl_table pfm_sysctl_dir[] = {
 	},
  	{}
 };
-static ctl_table pfm_sysctl_root[] = {
+static struct ctl_table pfm_sysctl_root[] = {
 	{
 		.procname	= "kernel",
 		.mode		= 0555,
diff --git a/arch/tile/kernel/proc.c b/arch/tile/kernel/proc.c
index 681100c59fda..6829a9508649 100644
--- a/arch/tile/kernel/proc.c
+++ b/arch/tile/kernel/proc.c
@@ -113,7 +113,7 @@ arch_initcall(proc_tile_init);
  * Support /proc/sys/tile directory
  */
 
-static ctl_table unaligned_subtable[] = {
+static struct ctl_table unaligned_subtable[] = {
 	{
 		.procname	= "enabled",
 		.data		= &unaligned_fixup,
@@ -138,7 +138,7 @@ static ctl_table unaligned_subtable[] = {
 	{}
 };
 
-static ctl_table unaligned_table[] = {
+static struct ctl_table unaligned_table[] = {
 	{
 		.procname	= "unaligned_fixup",
 		.mode		= 0555,
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index 49ac5662585b..2a44767891f5 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -3470,7 +3470,7 @@ static int cdrom_print_info(const char *header, int val, char *info,
 	return 0;
 }
 
-static int cdrom_sysctl_info(ctl_table *ctl, int write,
+static int cdrom_sysctl_info(struct ctl_table *ctl, int write,
                            void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int pos;
@@ -3583,7 +3583,7 @@ static void cdrom_update_settings(void)
 	mutex_unlock(&cdrom_mutex);
 }
 
-static int cdrom_sysctl_handler(ctl_table *ctl, int write,
+static int cdrom_sysctl_handler(struct ctl_table *ctl, int write,
 				void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int ret;
@@ -3609,7 +3609,7 @@ static int cdrom_sysctl_handler(ctl_table *ctl, int write,
 }
 
 /* Place files in /proc/sys/dev/cdrom */
-static ctl_table cdrom_table[] = {
+static struct ctl_table cdrom_table[] = {
 	{
 		.procname	= "info",
 		.data		= &cdrom_sysctl_settings.info, 
@@ -3655,7 +3655,7 @@ static ctl_table cdrom_table[] = {
 	{ }
 };
 
-static ctl_table cdrom_cdrom_table[] = {
+static struct ctl_table cdrom_cdrom_table[] = {
 	{
 		.procname	= "cdrom",
 		.maxlen		= 0,
@@ -3666,7 +3666,7 @@ static ctl_table cdrom_cdrom_table[] = {
 };
 
 /* Make sure that /proc/sys/dev is there */
-static ctl_table cdrom_root_table[] = {
+static struct ctl_table cdrom_root_table[] = {
 	{
 		.procname	= "dev",
 		.maxlen		= 0,
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 0a19d866a153..20f694157fca 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1579,10 +1579,10 @@ static int proc_do_uuid(struct ctl_table *table, int write,
 /*
  * Return entropy available scaled to integral bits
  */
-static int proc_do_entropy(ctl_table *table, int write,
+static int proc_do_entropy(struct ctl_table *table, int write,
 			   void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	ctl_table fake_table;
+	struct ctl_table fake_table;
 	int entropy_count;
 
 	entropy_count = *(int *)table->data >> ENTROPY_SHIFT;
diff --git a/drivers/gpio/gpio-zevio.c b/drivers/gpio/gpio-zevio.c
index 54e54e4cc6c4..cd71e5769a76 100644
--- a/drivers/gpio/gpio-zevio.c
+++ b/drivers/gpio/gpio-zevio.c
@@ -18,6 +18,10 @@
 #include <linux/slab.h>
 #include <linux/gpio.h>
 
+#ifndef IOMEM
+#define IOMEM(x)    ((void __force __iomem *)(x))
+#endif
+
 /*
  * Memory layout:
  * This chip has four gpio sections, each controls 8 GPIOs.
diff --git a/drivers/parport/procfs.c b/drivers/parport/procfs.c
index 92ed045a5f93..3b470801a04f 100644
--- a/drivers/parport/procfs.c
+++ b/drivers/parport/procfs.c
@@ -31,7 +31,7 @@
 #define PARPORT_MIN_SPINTIME_VALUE 1
 #define PARPORT_MAX_SPINTIME_VALUE 1000
 
-static int do_active_device(ctl_table *table, int write,
+static int do_active_device(struct ctl_table *table, int write,
 		      void __user *result, size_t *lenp, loff_t *ppos)
 {
 	struct parport *port = (struct parport *)table->extra1;
@@ -68,7 +68,7 @@ static int do_active_device(ctl_table *table, int write,
 }
 
 #ifdef CONFIG_PARPORT_1284
-static int do_autoprobe(ctl_table *table, int write,
+static int do_autoprobe(struct ctl_table *table, int write,
 			void __user *result, size_t *lenp, loff_t *ppos)
 {
 	struct parport_device_info *info = table->extra2;
@@ -110,9 +110,9 @@ static int do_autoprobe(ctl_table *table, int write,
 }
 #endif /* IEEE1284.3 support. */
 
-static int do_hardware_base_addr (ctl_table *table, int write,
-				  void __user *result,
-				  size_t *lenp, loff_t *ppos)
+static int do_hardware_base_addr(struct ctl_table *table, int write,
+				 void __user *result,
+				 size_t *lenp, loff_t *ppos)
 {
 	struct parport *port = (struct parport *)table->extra1;
 	char buffer[20];
@@ -138,9 +138,9 @@ static int do_hardware_base_addr (ctl_table *table, int write,
 	return copy_to_user(result, buffer, len) ? -EFAULT : 0;
 }
 
-static int do_hardware_irq (ctl_table *table, int write,
-			    void __user *result,
-			    size_t *lenp, loff_t *ppos)
+static int do_hardware_irq(struct ctl_table *table, int write,
+			   void __user *result,
+			   size_t *lenp, loff_t *ppos)
 {
 	struct parport *port = (struct parport *)table->extra1;
 	char buffer[20];
@@ -166,9 +166,9 @@ static int do_hardware_irq (ctl_table *table, int write,
 	return copy_to_user(result, buffer, len) ? -EFAULT : 0;
 }
 
-static int do_hardware_dma (ctl_table *table, int write,
-			    void __user *result,
-			    size_t *lenp, loff_t *ppos)
+static int do_hardware_dma(struct ctl_table *table, int write,
+			   void __user *result,
+			   size_t *lenp, loff_t *ppos)
 {
 	struct parport *port = (struct parport *)table->extra1;
 	char buffer[20];
@@ -194,9 +194,9 @@ static int do_hardware_dma (ctl_table *table, int write,
 	return copy_to_user(result, buffer, len) ? -EFAULT : 0;
 }
 
-static int do_hardware_modes (ctl_table *table, int write,
-			      void __user *result,
-			      size_t *lenp, loff_t *ppos)
+static int do_hardware_modes(struct ctl_table *table, int write,
+			     void __user *result,
+			     size_t *lenp, loff_t *ppos)
 {
 	struct parport *port = (struct parport *)table->extra1;
 	char buffer[40];
@@ -255,11 +255,11 @@ PARPORT_MAX_SPINTIME_VALUE;
 
 struct parport_sysctl_table {
 	struct ctl_table_header *sysctl_header;
-	ctl_table vars[12];
-	ctl_table device_dir[2];
-	ctl_table port_dir[2];
-	ctl_table parport_dir[2];
-	ctl_table dev_dir[2];
+	struct ctl_table vars[12];
+	struct ctl_table device_dir[2];
+	struct ctl_table port_dir[2];
+	struct ctl_table parport_dir[2];
+	struct ctl_table dev_dir[2];
 };
 
 static const struct parport_sysctl_table parport_sysctl_template = {
@@ -369,12 +369,12 @@ static const struct parport_sysctl_table parport_sysctl_template = {
 struct parport_device_sysctl_table
 {
 	struct ctl_table_header *sysctl_header;
-	ctl_table vars[2];
-	ctl_table device_dir[2];
-	ctl_table devices_root_dir[2];
-	ctl_table port_dir[2];
-	ctl_table parport_dir[2];
-	ctl_table dev_dir[2];
+	struct ctl_table vars[2];
+	struct ctl_table device_dir[2];
+	struct ctl_table devices_root_dir[2];
+	struct ctl_table port_dir[2];
+	struct ctl_table parport_dir[2];
+	struct ctl_table dev_dir[2];
 };
 
 static const struct parport_device_sysctl_table
@@ -422,10 +422,10 @@ parport_device_sysctl_template = {
 struct parport_default_sysctl_table
 {
 	struct ctl_table_header *sysctl_header;
-	ctl_table vars[3];
-        ctl_table default_dir[2];
-	ctl_table parport_dir[2];
-	ctl_table dev_dir[2];
+	struct ctl_table vars[3];
+	struct ctl_table default_dir[2];
+	struct ctl_table parport_dir[2];
+	struct ctl_table dev_dir[2];
 };
 
 static struct parport_default_sysctl_table
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 91dbe0c92fdf..ae784082b856 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -530,11 +530,11 @@ config RTC_DRV_RV3029C2
 	  will be called rtc-rv3029c2.
 
 config RTC_DRV_S5M
-	tristate "Samsung S5M series"
+	tristate "Samsung S2M/S5M series"
 	depends on MFD_SEC_CORE
 	help
 	  If you say yes here you will get support for the
-	  RTC of Samsung S5M PMIC series.
+	  RTC of Samsung S2MPS14 and S5M PMIC series.
 
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-s5m.
diff --git a/drivers/rtc/rtc-s5m.c b/drivers/rtc/rtc-s5m.c
index 8ec2d6a1dbe1..8f06250a0389 100644
--- a/drivers/rtc/rtc-s5m.c
+++ b/drivers/rtc/rtc-s5m.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013 Samsung Electronics Co., Ltd
+ * Copyright (c) 2013-2014 Samsung Electronics Co., Ltd
  *	http://www.samsung.com
  *
  *  Copyright (C) 2013 Google, Inc
@@ -17,27 +17,76 @@
 
 #include <linux/module.h>
 #include <linux/i2c.h>
-#include <linux/slab.h>
 #include <linux/bcd.h>
-#include <linux/bitops.h>
 #include <linux/regmap.h>
 #include <linux/rtc.h>
-#include <linux/delay.h>
 #include <linux/platform_device.h>
 #include <linux/mfd/samsung/core.h>
 #include <linux/mfd/samsung/irq.h>
 #include <linux/mfd/samsung/rtc.h>
+#include <linux/mfd/samsung/s2mps14.h>
 
 /*
  * Maximum number of retries for checking changes in UDR field
- * of SEC_RTC_UDR_CON register (to limit possible endless loop).
+ * of S5M_RTC_UDR_CON register (to limit possible endless loop).
  *
  * After writing to RTC registers (setting time or alarm) read the UDR field
- * in SEC_RTC_UDR_CON register. UDR is auto-cleared when data have
+ * in S5M_RTC_UDR_CON register. UDR is auto-cleared when data have
  * been transferred.
  */
 #define UDR_READ_RETRY_CNT	5
 
+/* Registers used by the driver which are different between chipsets. */
+struct s5m_rtc_reg_config {
+	/* Number of registers used for setting time/alarm0/alarm1 */
+	unsigned int regs_count;
+	/* First register for time, seconds */
+	unsigned int time;
+	/* RTC control register */
+	unsigned int ctrl;
+	/* First register for alarm 0, seconds */
+	unsigned int alarm0;
+	/* First register for alarm 1, seconds */
+	unsigned int alarm1;
+	/* SMPL/WTSR register */
+	unsigned int smpl_wtsr;
+	/*
+	 * Register for update flag (UDR). Typically setting UDR field to 1
+	 * will enable update of time or alarm register. Then it will be
+	 * auto-cleared after successful update.
+	 */
+	unsigned int rtc_udr_update;
+	/* Mask for UDR field in 'rtc_udr_update' register */
+	unsigned int rtc_udr_mask;
+};
+
+/* Register map for S5M8763 and S5M8767 */
+static const struct s5m_rtc_reg_config s5m_rtc_regs = {
+	.regs_count		= 8,
+	.time			= S5M_RTC_SEC,
+	.ctrl			= S5M_ALARM1_CONF,
+	.alarm0			= S5M_ALARM0_SEC,
+	.alarm1			= S5M_ALARM1_SEC,
+	.smpl_wtsr		= S5M_WTSR_SMPL_CNTL,
+	.rtc_udr_update		= S5M_RTC_UDR_CON,
+	.rtc_udr_mask		= S5M_RTC_UDR_MASK,
+};
+
+/*
+ * Register map for S2MPS14.
+ * It may be also suitable for S2MPS11 but this was not tested.
+ */
+static const struct s5m_rtc_reg_config s2mps_rtc_regs = {
+	.regs_count		= 7,
+	.time			= S2MPS_RTC_SEC,
+	.ctrl			= S2MPS_RTC_CTRL,
+	.alarm0			= S2MPS_ALARM0_SEC,
+	.alarm1			= S2MPS_ALARM1_SEC,
+	.smpl_wtsr		= S2MPS_WTSR_SMPL_CNTL,
+	.rtc_udr_update		= S2MPS_RTC_UDR_CON,
+	.rtc_udr_mask		= S2MPS_RTC_WUDR_MASK,
+};
+
 struct s5m_rtc_info {
 	struct device *dev;
 	struct i2c_client *i2c;
@@ -48,13 +97,14 @@ struct s5m_rtc_info {
 	int device_type;
 	int rtc_24hr_mode;
 	bool wtsr_smpl;
+	const struct s5m_rtc_reg_config	*regs;
 };
 
 static const struct regmap_config s5m_rtc_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
 
-	.max_register = SEC_RTC_REG_MAX,
+	.max_register = S5M_RTC_REG_MAX,
 };
 
 static const struct regmap_config s2mps14_rtc_regmap_config = {
@@ -119,8 +169,9 @@ static inline int s5m8767_wait_for_udr_update(struct s5m_rtc_info *info)
 	unsigned int data;
 
 	do {
-		ret = regmap_read(info->regmap, SEC_RTC_UDR_CON, &data);
-	} while (--retry && (data & RTC_UDR_MASK) && !ret);
+		ret = regmap_read(info->regmap, info->regs->rtc_udr_update,
+				&data);
+	} while (--retry && (data & info->regs->rtc_udr_mask) && !ret);
 
 	if (!retry)
 		dev_err(info->dev, "waiting for UDR update, reached max number of retries\n");
@@ -128,21 +179,53 @@ static inline int s5m8767_wait_for_udr_update(struct s5m_rtc_info *info)
 	return ret;
 }
 
+static inline int s5m_check_peding_alarm_interrupt(struct s5m_rtc_info *info,
+		struct rtc_wkalrm *alarm)
+{
+	int ret;
+	unsigned int val;
+
+	switch (info->device_type) {
+	case S5M8767X:
+	case S5M8763X:
+		ret = regmap_read(info->regmap, S5M_RTC_STATUS, &val);
+		val &= S5M_ALARM0_STATUS;
+		break;
+	case S2MPS14X:
+		ret = regmap_read(info->s5m87xx->regmap_pmic, S2MPS14_REG_ST2,
+				&val);
+		val &= S2MPS_ALARM0_STATUS;
+		break;
+	default:
+		return -EINVAL;
+	}
+	if (ret < 0)
+		return ret;
+
+	if (val)
+		alarm->pending = 1;
+	else
+		alarm->pending = 0;
+
+	return 0;
+}
+
 static inline int s5m8767_rtc_set_time_reg(struct s5m_rtc_info *info)
 {
 	int ret;
 	unsigned int data;
 
-	ret = regmap_read(info->regmap, SEC_RTC_UDR_CON, &data);
+	ret = regmap_read(info->regmap, info->regs->rtc_udr_update, &data);
 	if (ret < 0) {
 		dev_err(info->dev, "failed to read update reg(%d)\n", ret);
 		return ret;
 	}
 
-	data |= RTC_TIME_EN_MASK;
-	data |= RTC_UDR_MASK;
+	data |= info->regs->rtc_udr_mask;
+	if (info->device_type == S5M8763X || info->device_type == S5M8767X)
+		data |= S5M_RTC_TIME_EN_MASK;
 
-	ret = regmap_write(info->regmap, SEC_RTC_UDR_CON, data);
+	ret = regmap_write(info->regmap, info->regs->rtc_udr_update, data);
 	if (ret < 0) {
 		dev_err(info->dev, "failed to write update reg(%d)\n", ret);
 		return ret;
@@ -158,17 +241,27 @@ static inline int s5m8767_rtc_set_alarm_reg(struct s5m_rtc_info *info)
 	int ret;
 	unsigned int data;
 
-	ret = regmap_read(info->regmap, SEC_RTC_UDR_CON, &data);
+	ret = regmap_read(info->regmap, info->regs->rtc_udr_update, &data);
 	if (ret < 0) {
 		dev_err(info->dev, "%s: fail to read update reg(%d)\n",
 			__func__, ret);
 		return ret;
 	}
 
-	data &= ~RTC_TIME_EN_MASK;
-	data |= RTC_UDR_MASK;
+	data |= info->regs->rtc_udr_mask;
+	switch (info->device_type) {
+	case S5M8763X:
+	case S5M8767X:
+		data &= ~S5M_RTC_TIME_EN_MASK;
+		break;
+	case S2MPS14X:
+		data |= S2MPS_RTC_RUDR_MASK;
+		break;
+	default:
+		return -EINVAL;
+	}
 
-	ret = regmap_write(info->regmap, SEC_RTC_UDR_CON, data);
+	ret = regmap_write(info->regmap, info->regs->rtc_udr_update, data);
 	if (ret < 0) {
 		dev_err(info->dev, "%s: fail to write update reg(%d)\n",
 			__func__, ret);
@@ -215,10 +308,22 @@ static void s5m8763_tm_to_data(struct rtc_time *tm, u8 *data)
 static int s5m_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
 	struct s5m_rtc_info *info = dev_get_drvdata(dev);
-	u8 data[8];
+	u8 data[info->regs->regs_count];
 	int ret;
 
-	ret = regmap_bulk_read(info->regmap, SEC_RTC_SEC, data, 8);
+	if (info->device_type == S2MPS14X) {
+		ret = regmap_update_bits(info->regmap,
+				info->regs->rtc_udr_update,
+				S2MPS_RTC_RUDR_MASK, S2MPS_RTC_RUDR_MASK);
+		if (ret) {
+			dev_err(dev,
+				"Failed to prepare registers for time reading: %d\n",
+				ret);
+			return ret;
+		}
+	}
+	ret = regmap_bulk_read(info->regmap, info->regs->time, data,
+			info->regs->regs_count);
 	if (ret < 0)
 		return ret;
 
@@ -228,6 +333,7 @@ static int s5m_rtc_read_time(struct device *dev, struct rtc_time *tm)
 		break;
 
 	case S5M8767X:
+	case S2MPS14X:
 		s5m8767_data_to_tm(data, tm, info->rtc_24hr_mode);
 		break;
 
@@ -245,7 +351,7 @@ static int s5m_rtc_read_time(struct device *dev, struct rtc_time *tm)
 static int s5m_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
 	struct s5m_rtc_info *info = dev_get_drvdata(dev);
-	u8 data[8];
+	u8 data[info->regs->regs_count];
 	int ret = 0;
 
 	switch (info->device_type) {
@@ -253,6 +359,7 @@ static int s5m_rtc_set_time(struct device *dev, struct rtc_time *tm)
 		s5m8763_tm_to_data(tm, data);
 		break;
 	case S5M8767X:
+	case S2MPS14X:
 		ret = s5m8767_tm_to_data(tm, data);
 		break;
 	default:
@@ -266,7 +373,8 @@ static int s5m_rtc_set_time(struct device *dev, struct rtc_time *tm)
 		1900 + tm->tm_year, 1 + tm->tm_mon, tm->tm_mday,
 		tm->tm_hour, tm->tm_min, tm->tm_sec, tm->tm_wday);
 
-	ret = regmap_raw_write(info->regmap, SEC_RTC_SEC, data, 8);
+	ret = regmap_raw_write(info->regmap, info->regs->time, data,
+			info->regs->regs_count);
 	if (ret < 0)
 		return ret;
 
@@ -278,70 +386,60 @@ static int s5m_rtc_set_time(struct device *dev, struct rtc_time *tm)
 static int s5m_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
 	struct s5m_rtc_info *info = dev_get_drvdata(dev);
-	u8 data[8];
+	u8 data[info->regs->regs_count];
 	unsigned int val;
 	int ret, i;
 
-	ret = regmap_bulk_read(info->regmap, SEC_ALARM0_SEC, data, 8);
+	ret = regmap_bulk_read(info->regmap, info->regs->alarm0, data,
+			info->regs->regs_count);
 	if (ret < 0)
 		return ret;
 
 	switch (info->device_type) {
 	case S5M8763X:
 		s5m8763_data_to_tm(data, &alrm->time);
-		ret = regmap_read(info->regmap, SEC_ALARM0_CONF, &val);
+		ret = regmap_read(info->regmap, S5M_ALARM0_CONF, &val);
 		if (ret < 0)
 			return ret;
 
 		alrm->enabled = !!val;
-
-		ret = regmap_read(info->regmap, SEC_RTC_STATUS, &val);
-		if (ret < 0)
-			return ret;
-
 		break;
 
 	case S5M8767X:
+	case S2MPS14X:
 		s5m8767_data_to_tm(data, &alrm->time, info->rtc_24hr_mode);
-		dev_dbg(dev, "%s: %d/%d/%d %d:%d:%d(%d)\n", __func__,
-			1900 + alrm->time.tm_year, 1 + alrm->time.tm_mon,
-			alrm->time.tm_mday, alrm->time.tm_hour,
-			alrm->time.tm_min, alrm->time.tm_sec,
-			alrm->time.tm_wday);
-
 		alrm->enabled = 0;
-		for (i = 0; i < 7; i++) {
+		for (i = 0; i < info->regs->regs_count; i++) {
 			if (data[i] & ALARM_ENABLE_MASK) {
 				alrm->enabled = 1;
 				break;
 			}
 		}
-
-		alrm->pending = 0;
-		ret = regmap_read(info->regmap, SEC_RTC_STATUS, &val);
-		if (ret < 0)
-			return ret;
 		break;
 
 	default:
 		return -EINVAL;
 	}
 
-	if (val & ALARM0_STATUS)
-		alrm->pending = 1;
-	else
-		alrm->pending = 0;
+	dev_dbg(dev, "%s: %d/%d/%d %d:%d:%d(%d)\n", __func__,
+		1900 + alrm->time.tm_year, 1 + alrm->time.tm_mon,
+		alrm->time.tm_mday, alrm->time.tm_hour,
+		alrm->time.tm_min, alrm->time.tm_sec,
+		alrm->time.tm_wday);
+
+	ret = s5m_check_peding_alarm_interrupt(info, alrm);
 
 	return 0;
 }
 
 static int s5m_rtc_stop_alarm(struct s5m_rtc_info *info)
 {
-	u8 data[8];
+	u8 data[info->regs->regs_count];
 	int ret, i;
 	struct rtc_time tm;
 
-	ret = regmap_bulk_read(info->regmap, SEC_ALARM0_SEC, data, 8);
+	ret = regmap_bulk_read(info->regmap, info->regs->alarm0, data,
+			info->regs->regs_count);
 	if (ret < 0)
 		return ret;
 
@@ -352,14 +450,16 @@ static int s5m_rtc_stop_alarm(struct s5m_rtc_info *info)
 
 	switch (info->device_type) {
 	case S5M8763X:
-		ret = regmap_write(info->regmap, SEC_ALARM0_CONF, 0);
+		ret = regmap_write(info->regmap, S5M_ALARM0_CONF, 0);
 		break;
 
 	case S5M8767X:
-		for (i = 0; i < 7; i++)
+	case S2MPS14X:
+		for (i = 0; i < info->regs->regs_count; i++)
 			data[i] &= ~ALARM_ENABLE_MASK;
 
-		ret = regmap_raw_write(info->regmap, SEC_ALARM0_SEC, data, 8);
+		ret = regmap_raw_write(info->regmap, info->regs->alarm0, data,
+				info->regs->regs_count);
 		if (ret < 0)
 			return ret;
 
@@ -377,11 +477,12 @@ static int s5m_rtc_stop_alarm(struct s5m_rtc_info *info)
 static int s5m_rtc_start_alarm(struct s5m_rtc_info *info)
 {
 	int ret;
-	u8 data[8];
+	u8 data[info->regs->regs_count];
 	u8 alarm0_conf;
 	struct rtc_time tm;
 
-	ret = regmap_bulk_read(info->regmap, SEC_ALARM0_SEC, data, 8);
+	ret = regmap_bulk_read(info->regmap, info->regs->alarm0, data,
+			info->regs->regs_count);
 	if (ret < 0)
 		return ret;
 
@@ -393,10 +494,11 @@ static int s5m_rtc_start_alarm(struct s5m_rtc_info *info)
 	switch (info->device_type) {
 	case S5M8763X:
 		alarm0_conf = 0x77;
-		ret = regmap_write(info->regmap, SEC_ALARM0_CONF, alarm0_conf);
+		ret = regmap_write(info->regmap, S5M_ALARM0_CONF, alarm0_conf);
 		break;
 
 	case S5M8767X:
+	case S2MPS14X:
 		data[RTC_SEC] |= ALARM_ENABLE_MASK;
 		data[RTC_MIN] |= ALARM_ENABLE_MASK;
 		data[RTC_HOUR] |= ALARM_ENABLE_MASK;
@@ -408,7 +510,8 @@ static int s5m_rtc_start_alarm(struct s5m_rtc_info *info)
 		if (data[RTC_YEAR1] & 0x7f)
 			data[RTC_YEAR1] |= ALARM_ENABLE_MASK;
 
-		ret = regmap_raw_write(info->regmap, SEC_ALARM0_SEC, data, 8);
+		ret = regmap_raw_write(info->regmap, info->regs->alarm0, data,
+				info->regs->regs_count);
 		if (ret < 0)
 			return ret;
 		ret = s5m8767_rtc_set_alarm_reg(info);
@@ -425,7 +528,7 @@ static int s5m_rtc_start_alarm(struct s5m_rtc_info *info)
 static int s5m_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
 	struct s5m_rtc_info *info = dev_get_drvdata(dev);
-	u8 data[8];
+	u8 data[info->regs->regs_count];
 	int ret;
 
 	switch (info->device_type) {
@@ -434,6 +537,7 @@ static int s5m_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 		break;
 
 	case S5M8767X:
+	case S2MPS14X:
 		s5m8767_tm_to_data(&alrm->time, data);
 		break;
 
@@ -450,7 +554,8 @@ static int s5m_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 	if (ret < 0)
 		return ret;
 
-	ret = regmap_raw_write(info->regmap, SEC_ALARM0_SEC, data, 8);
+	ret = regmap_raw_write(info->regmap, info->regs->alarm0, data,
+			info->regs->regs_count);
 	if (ret < 0)
 		return ret;
 
@@ -495,7 +600,7 @@ static const struct rtc_class_ops s5m_rtc_ops = {
 static void s5m_rtc_enable_wtsr(struct s5m_rtc_info *info, bool enable)
 {
 	int ret;
-	ret = regmap_update_bits(info->regmap, SEC_WTSR_SMPL_CNTL,
+	ret = regmap_update_bits(info->regmap, info->regs->smpl_wtsr,
 				 WTSR_ENABLE_MASK,
 				 enable ? WTSR_ENABLE_MASK : 0);
 	if (ret < 0)
@@ -506,7 +611,7 @@ static void s5m_rtc_enable_wtsr(struct s5m_rtc_info *info, bool enable)
 static void s5m_rtc_enable_smpl(struct s5m_rtc_info *info, bool enable)
 {
 	int ret;
-	ret = regmap_update_bits(info->regmap, SEC_WTSR_SMPL_CNTL,
+	ret = regmap_update_bits(info->regmap, info->regs->smpl_wtsr,
 				 SMPL_ENABLE_MASK,
 				 enable ? SMPL_ENABLE_MASK : 0);
 	if (ret < 0)
@@ -517,50 +622,41 @@ static void s5m_rtc_enable_smpl(struct s5m_rtc_info *info, bool enable)
 static int s5m8767_rtc_init_reg(struct s5m_rtc_info *info)
 {
 	u8 data[2];
-	unsigned int tp_read;
 	int ret;
-	struct rtc_time tm;
 
-	ret = regmap_read(info->regmap, SEC_RTC_UDR_CON, &tp_read);
-	if (ret < 0) {
-		dev_err(info->dev, "%s: fail to read control reg(%d)\n",
-			__func__, ret);
-		return ret;
-	}
+	switch (info->device_type) {
+	case S5M8763X:
+	case S5M8767X:
+		/* UDR update time. Default of 7.32 ms is too long. */
+		ret = regmap_update_bits(info->regmap, S5M_RTC_UDR_CON,
+				S5M_RTC_UDR_T_MASK, S5M_RTC_UDR_T_450_US);
+		if (ret < 0)
+			dev_err(info->dev, "%s: fail to change UDR time: %d\n",
+					__func__, ret);
 
-	/* Set RTC control register : Binary mode, 24hour mode */
-	data[0] = (1 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT);
-	data[1] = (0 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT);
+		/* Set RTC control register : Binary mode, 24hour mode */
+		data[0] = (1 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT);
+		data[1] = (0 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT);
+
+		ret = regmap_raw_write(info->regmap, S5M_ALARM0_CONF, data, 2);
+		break;
+
+	case S2MPS14X:
+		data[0] = (0 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT);
+		ret = regmap_write(info->regmap, info->regs->ctrl, data[0]);
+		break;
+
+	default:
+		return -EINVAL;
+	}
 
 	info->rtc_24hr_mode = 1;
-	ret = regmap_raw_write(info->regmap, SEC_ALARM0_CONF, data, 2);
 	if (ret < 0) {
 		dev_err(info->dev, "%s: fail to write controlm reg(%d)\n",
 			__func__, ret);
 		return ret;
 	}
 
-	/* In first boot time, Set rtc time to 1/1/2012 00:00:00(SUN) */
-	if ((tp_read & RTC_TCON_MASK) == 0) {
-		dev_dbg(info->dev, "rtc init\n");
-		tm.tm_sec = 0;
-		tm.tm_min = 0;
-		tm.tm_hour = 0;
-		tm.tm_wday = 0;
-		tm.tm_mday = 1;
-		tm.tm_mon = 0;
-		tm.tm_year = 112;
-		tm.tm_yday = 0;
-		tm.tm_isdst = 0;
-		ret = s5m_rtc_set_time(info->dev, &tm);
-	}
-
-	ret = regmap_update_bits(info->regmap, SEC_RTC_UDR_CON,
-				 RTC_TCON_MASK, tp_read | RTC_TCON_MASK);
-	if (ret < 0)
-		dev_err(info->dev, "%s: fail to update TCON reg(%d)\n",
-			__func__, ret);
-
 	return ret;
 }
 
@@ -570,7 +666,7 @@ static int s5m_rtc_probe(struct platform_device *pdev)
 	struct sec_platform_data *pdata = s5m87xx->pdata;
 	struct s5m_rtc_info *info;
 	const struct regmap_config *regmap_cfg;
-	int ret;
+	int ret, alarm_irq;
 
 	if (!pdata) {
 		dev_err(pdev->dev.parent, "Platform data not supplied\n");
@@ -584,12 +680,18 @@ static int s5m_rtc_probe(struct platform_device *pdev)
 	switch (pdata->device_type) {
 	case S2MPS14X:
 		regmap_cfg = &s2mps14_rtc_regmap_config;
+		info->regs = &s2mps_rtc_regs;
+		alarm_irq = S2MPS14_IRQ_RTCA0;
 		break;
 	case S5M8763X:
 		regmap_cfg = &s5m_rtc_regmap_config;
+		info->regs = &s5m_rtc_regs;
+		alarm_irq = S5M8763_IRQ_ALARM0;
 		break;
 	case S5M8767X:
 		regmap_cfg = &s5m_rtc_regmap_config;
+		info->regs = &s5m_rtc_regs;
+		alarm_irq = S5M8767_IRQ_RTCA1;
 		break;
 	default:
 		dev_err(&pdev->dev, "Device type is not supported by RTC driver\n");
@@ -615,20 +717,11 @@ static int s5m_rtc_probe(struct platform_device *pdev)
 	info->device_type = s5m87xx->device_type;
 	info->wtsr_smpl = s5m87xx->wtsr_smpl;
 
-	switch (pdata->device_type) {
-	case S5M8763X:
-		info->irq = regmap_irq_get_virq(s5m87xx->irq_data,
-				S5M8763_IRQ_ALARM0);
-		break;
-
-	case S5M8767X:
-		info->irq = regmap_irq_get_virq(s5m87xx->irq_data,
-				S5M8767_IRQ_RTCA1);
-		break;
-
-	default:
+	info->irq = regmap_irq_get_virq(s5m87xx->irq_data, alarm_irq);
+	if (info->irq <= 0) {
 		ret = -EINVAL;
-		dev_err(&pdev->dev, "Unsupported device type: %d\n", ret);
+		dev_err(&pdev->dev, "Failed to get virtual IRQ %d\n",
+				alarm_irq);
 		goto err;
 	}
 
@@ -676,7 +769,7 @@ static void s5m_rtc_shutdown(struct platform_device *pdev)
 	if (info->wtsr_smpl) {
 		for (i = 0; i < 3; i++) {
 			s5m_rtc_enable_wtsr(info, false);
-			regmap_read(info->regmap, SEC_WTSR_SMPL_CNTL, &val);
+			regmap_read(info->regmap, info->regs->smpl_wtsr, &val);
 			pr_debug("%s: WTSR_SMPL reg(0x%02x)\n", __func__, val);
 			if (val & WTSR_ENABLE_MASK)
 				pr_emerg("%s: fail to disable WTSR\n",
@@ -730,7 +823,8 @@ static int s5m_rtc_suspend(struct device *dev)
 static SIMPLE_DEV_PM_OPS(s5m_rtc_pm_ops, s5m_rtc_suspend, s5m_rtc_resume);
 
 static const struct platform_device_id s5m_rtc_id[] = {
-	{ "s5m-rtc", 0 },
+	{ "s5m-rtc",		S5M8767X },
+	{ "s2mps14-rtc",	S2MPS14X },
 };
 
 static struct platform_driver s5m_rtc_driver = {
@@ -749,6 +843,6 @@ module_platform_driver(s5m_rtc_driver);
 
 /* Module information */
 MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
-MODULE_DESCRIPTION("Samsung S5M RTC driver");
+MODULE_DESCRIPTION("Samsung S5M/S2MPS14 RTC driver");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:s5m-rtc");
diff --git a/drivers/scsi/scsi_sysctl.c b/drivers/scsi/scsi_sysctl.c
index 2b6b93f7d8ef..546f16299ef9 100644
--- a/drivers/scsi/scsi_sysctl.c
+++ b/drivers/scsi/scsi_sysctl.c
@@ -12,7 +12,7 @@
 #include "scsi_priv.h"
 
 
-static ctl_table scsi_table[] = {
+static struct ctl_table scsi_table[] = {
 	{ .procname	= "logging_level",
 	  .data		= &scsi_logging_level,
 	  .maxlen	= sizeof(scsi_logging_level),
@@ -21,14 +21,14 @@ static ctl_table scsi_table[] = {
 	{ }
 };
 
-static ctl_table scsi_dir_table[] = {
+static struct ctl_table scsi_dir_table[] = {
 	{ .procname	= "scsi",
 	  .mode		= 0555,
 	  .child	= scsi_table },
 	{ }
 };
 
-static ctl_table scsi_root_table[] = {
+static struct ctl_table scsi_root_table[] = {
 	{ .procname	= "dev",
 	  .mode		= 0555,
 	  .child	= scsi_dir_table },
diff --git a/drivers/w1/w1_int.c b/drivers/w1/w1_int.c
index 9b084db739c7..3aaa15f6b7e9 100644
--- a/drivers/w1/w1_int.c
+++ b/drivers/w1/w1_int.c
@@ -92,9 +92,8 @@ static struct w1_master * w1_alloc_dev(u32 id, int slave_count, int slave_ttl,
 	err = device_register(&dev->dev);
 	if (err) {
 		printk(KERN_ERR "Failed to register master device. err=%d\n", err);
-		memset(dev, 0, sizeof(struct w1_master));
-		kfree(dev);
-		dev = NULL;
+		put_device(&dev->dev);
+		return NULL;
 	}
 
 	return dev;
diff --git a/fs/coda/sysctl.c b/fs/coda/sysctl.c
index af56ad56a89a..34218a8a28cd 100644
--- a/fs/coda/sysctl.c
+++ b/fs/coda/sysctl.c
@@ -14,7 +14,7 @@
 #ifdef CONFIG_SYSCTL
 static struct ctl_table_header *fs_table_header;
 
-static ctl_table coda_table[] = {
+static struct ctl_table coda_table[] = {
 	{
 		.procname	= "timeout",
 		.data		= &coda_timeout,
@@ -39,7 +39,7 @@ static ctl_table coda_table[] = {
 	{}
 };
 
-static ctl_table fs_table[] = {
+static struct ctl_table fs_table[] = {
 	{
 		.procname	= "coda",
 		.mode		= 0555,
diff --git a/fs/dcache.c b/fs/dcache.c
index 17010fd1cecd..ac6db5cd6b70 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -150,7 +150,7 @@ static long get_nr_dentry_unused(void)
 	return sum < 0 ? 0 : sum;
 }
 
-int proc_nr_dentry(ctl_table *table, int write, void __user *buffer,
+int proc_nr_dentry(struct ctl_table *table, int write, void __user *buffer,
 		   size_t *lenp, loff_t *ppos)
 {
 	dentry_stat.nr_dentry = get_nr_dentry();
diff --git a/fs/drop_caches.c b/fs/drop_caches.c
index 9280202e488c..1de7294aad20 100644
--- a/fs/drop_caches.c
+++ b/fs/drop_caches.c
@@ -50,7 +50,7 @@ static void drop_slab(void)
 	} while (nr_objects > 10);
 }
 
-int drop_caches_sysctl_handler(ctl_table *table, int write,
+int drop_caches_sysctl_handler(struct ctl_table *table, int write,
 	void __user *buffer, size_t *length, loff_t *ppos)
 {
 	int ret;
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index af903128891c..b73e0621ce9e 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -293,7 +293,7 @@ static LIST_HEAD(tfile_check_list);
 static long zero;
 static long long_max = LONG_MAX;
 
-ctl_table epoll_table[] = {
+struct ctl_table epoll_table[] = {
 	{
 		.procname	= "max_user_watches",
 		.data		= &max_user_watches,
diff --git a/fs/file_table.c b/fs/file_table.c
index f8cc881fbbfb..385bfd31512a 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -76,14 +76,14 @@ EXPORT_SYMBOL_GPL(get_max_files);
  * Handle nr_files sysctl
  */
 #if defined(CONFIG_SYSCTL) && defined(CONFIG_PROC_FS)
-int proc_nr_files(ctl_table *table, int write,
+int proc_nr_files(struct ctl_table *table, int write,
                      void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	files_stat.nr_files = get_nr_files();
 	return proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
 }
 #else
-int proc_nr_files(ctl_table *table, int write,
+int proc_nr_files(struct ctl_table *table, int write,
                      void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	return -ENOSYS;
diff --git a/fs/fscache/main.c b/fs/fscache/main.c
index acd4bf1fc277..63f868e869b9 100644
--- a/fs/fscache/main.c
+++ b/fs/fscache/main.c
@@ -67,7 +67,7 @@ static int fscache_max_active_sysctl(struct ctl_table *table, int write,
 	return ret;
 }
 
-ctl_table fscache_sysctls[] = {
+struct ctl_table fscache_sysctls[] = {
 	{
 		.procname	= "object_max_active",
 		.data		= &fscache_object_max_active,
@@ -87,7 +87,7 @@ ctl_table fscache_sysctls[] = {
 	{}
 };
 
-ctl_table fscache_sysctls_root[] = {
+struct ctl_table fscache_sysctls_root[] = {
 	{
 		.procname	= "fscache",
 		.mode		= 0555,
diff --git a/fs/inode.c b/fs/inode.c
index f96d2a6f88cc..2feb9b69f1be 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -105,7 +105,7 @@ long get_nr_dirty_inodes(void)
  * Handle nr_inode sysctl
  */
 #ifdef CONFIG_SYSCTL
-int proc_nr_inodes(ctl_table *table, int write,
+int proc_nr_inodes(struct ctl_table *table, int write,
 		   void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	inodes_stat.nr_inodes = get_nr_inodes();
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 2b431f7266c3..8f27c93f8d2e 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -436,7 +436,7 @@ EXPORT_SYMBOL_GPL(lockd_down);
  * Sysctl parameters (same as module parameters, different interface).
  */
 
-static ctl_table nlm_sysctls[] = {
+static struct ctl_table nlm_sysctls[] = {
 	{
 		.procname	= "nlm_grace_period",
 		.data		= &nlm_grace_period,
@@ -490,7 +490,7 @@ static ctl_table nlm_sysctls[] = {
 	{ }
 };
 
-static ctl_table nlm_sysctl_dir[] = {
+static struct ctl_table nlm_sysctl_dir[] = {
 	{
 		.procname	= "nfs",
 		.mode		= 0555,
@@ -499,7 +499,7 @@ static ctl_table nlm_sysctl_dir[] = {
 	{ }
 };
 
-static ctl_table nlm_sysctl_root[] = {
+static struct ctl_table nlm_sysctl_root[] = {
 	{
 		.procname	= "fs",
 		.mode		= 0555,
diff --git a/fs/nfs/nfs4sysctl.c b/fs/nfs/nfs4sysctl.c
index 2628d921b7e3..b6ebe7e445f6 100644
--- a/fs/nfs/nfs4sysctl.c
+++ b/fs/nfs/nfs4sysctl.c
@@ -16,7 +16,7 @@ static const int nfs_set_port_min = 0;
 static const int nfs_set_port_max = 65535;
 static struct ctl_table_header *nfs4_callback_sysctl_table;
 
-static ctl_table nfs4_cb_sysctls[] = {
+static struct ctl_table nfs4_cb_sysctls[] = {
 	{
 		.procname = "nfs_callback_tcpport",
 		.data = &nfs_callback_set_tcpport,
@@ -36,7 +36,7 @@ static ctl_table nfs4_cb_sysctls[] = {
 	{ }
 };
 
-static ctl_table nfs4_cb_sysctl_dir[] = {
+static struct ctl_table nfs4_cb_sysctl_dir[] = {
 	{
 		.procname = "nfs",
 		.mode = 0555,
@@ -45,7 +45,7 @@ static ctl_table nfs4_cb_sysctl_dir[] = {
 	{ }
 };
 
-static ctl_table nfs4_cb_sysctl_root[] = {
+static struct ctl_table nfs4_cb_sysctl_root[] = {
 	{
 		.procname = "fs",
 		.mode = 0555,
diff --git a/fs/nfs/sysctl.c b/fs/nfs/sysctl.c
index 6b3f2535a3ec..bb6ed810fa6f 100644
--- a/fs/nfs/sysctl.c
+++ b/fs/nfs/sysctl.c
@@ -13,7 +13,7 @@
 
 static struct ctl_table_header *nfs_callback_sysctl_table;
 
-static ctl_table nfs_cb_sysctls[] = {
+static struct ctl_table nfs_cb_sysctls[] = {
 	{
 		.procname	= "nfs_mountpoint_timeout",
 		.data		= &nfs_mountpoint_expiry_timeout,
@@ -31,7 +31,7 @@ static ctl_table nfs_cb_sysctls[] = {
 	{ }
 };
 
-static ctl_table nfs_cb_sysctl_dir[] = {
+static struct ctl_table nfs_cb_sysctl_dir[] = {
 	{
 		.procname = "nfs",
 		.mode = 0555,
@@ -40,7 +40,7 @@ static ctl_table nfs_cb_sysctl_dir[] = {
 	{ }
 };
 
-static ctl_table nfs_cb_sysctl_root[] = {
+static struct ctl_table nfs_cb_sysctl_root[] = {
 	{
 		.procname = "fs",
 		.mode = 0555,
diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index 78a2ca3966c3..cc423a30a0c8 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -57,7 +57,7 @@ static struct kmem_cache *inotify_inode_mark_cachep __read_mostly;
 
 static int zero;
 
-ctl_table inotify_table[] = {
+struct ctl_table inotify_table[] = {
 	{
 		.procname	= "max_user_instances",
 		.data		= &inotify_max_user_instances,
diff --git a/fs/ntfs/sysctl.c b/fs/ntfs/sysctl.c
index 1927170a35ce..a503156ec15f 100644
--- a/fs/ntfs/sysctl.c
+++ b/fs/ntfs/sysctl.c
@@ -34,7 +34,7 @@
 #include "debug.h"
 
 /* Definition of the ntfs sysctl. */
-static ctl_table ntfs_sysctls[] = {
+static struct ctl_table ntfs_sysctls[] = {
 	{
 		.procname	= "ntfs-debug",
 		.data		= &debug_msgs,		/* Data pointer and size. */
@@ -46,7 +46,7 @@ static ctl_table ntfs_sysctls[] = {
 };
 
 /* Define the parent directory /proc/sys/fs. */
-static ctl_table sysctls_root[] = {
+static struct ctl_table sysctls_root[] = {
 	{
 		.procname	= "fs",
 		.mode		= 0555,
diff --git a/fs/ufs/balloc.c b/fs/ufs/balloc.c
index 184323cac1a4..7bc20809c99e 100644
--- a/fs/ufs/balloc.c
+++ b/fs/ufs/balloc.c
@@ -52,7 +52,7 @@ void ufs_free_fragments(struct inode *inode, u64 fragment, unsigned count)
 	if (ufs_fragnum(fragment) + count > uspi->s_fpg)
 		ufs_error (sb, "ufs_free_fragments", "internal error");
 	
-	mutex_lock(&UFS_SB(sb)->s_lock);
+	lock_ufs(sb);
 	
 	cgno = ufs_dtog(uspi, fragment);
 	bit = ufs_dtogd(uspi, fragment);
@@ -116,12 +116,12 @@ void ufs_free_fragments(struct inode *inode, u64 fragment, unsigned count)
 		ubh_sync_block(UCPI_UBH(ucpi));
 	ufs_mark_sb_dirty(sb);
 	
-	mutex_unlock(&UFS_SB(sb)->s_lock);
+	unlock_ufs(sb);
 	UFSD("EXIT\n");
 	return;
 
 failed:
-	mutex_unlock(&UFS_SB(sb)->s_lock);
+	unlock_ufs(sb);
 	UFSD("EXIT (FAILED)\n");
 	return;
 }
@@ -151,7 +151,7 @@ void ufs_free_blocks(struct inode *inode, u64 fragment, unsigned count)
 		goto failed;
 	}
 
-	mutex_lock(&UFS_SB(sb)->s_lock);
+	lock_ufs(sb);
 	
 do_more:
 	overflow = 0;
@@ -211,12 +211,12 @@ do_more:
 	}
 
 	ufs_mark_sb_dirty(sb);
-	mutex_unlock(&UFS_SB(sb)->s_lock);
+	unlock_ufs(sb);
 	UFSD("EXIT\n");
 	return;
 
 failed_unlock:
-	mutex_unlock(&UFS_SB(sb)->s_lock);
+	unlock_ufs(sb);
 failed:
 	UFSD("EXIT (FAILED)\n");
 	return;
@@ -357,7 +357,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
 	usb1 = ubh_get_usb_first(uspi);
 	*err = -ENOSPC;
 
-	mutex_lock(&UFS_SB(sb)->s_lock);
+	lock_ufs(sb);
 	tmp = ufs_data_ptr_to_cpu(sb, p);
 
 	if (count + ufs_fragnum(fragment) > uspi->s_fpb) {
@@ -378,19 +378,19 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
 				  "fragment %llu, tmp %llu\n",
 				  (unsigned long long)fragment,
 				  (unsigned long long)tmp);
-			mutex_unlock(&UFS_SB(sb)->s_lock);
+			unlock_ufs(sb);
 			return INVBLOCK;
 		}
 		if (fragment < UFS_I(inode)->i_lastfrag) {
 			UFSD("EXIT (ALREADY ALLOCATED)\n");
-			mutex_unlock(&UFS_SB(sb)->s_lock);
+			unlock_ufs(sb);
 			return 0;
 		}
 	}
 	else {
 		if (tmp) {
 			UFSD("EXIT (ALREADY ALLOCATED)\n");
-			mutex_unlock(&UFS_SB(sb)->s_lock);
+			unlock_ufs(sb);
 			return 0;
 		}
 	}
@@ -399,7 +399,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
 	 * There is not enough space for user on the device
 	 */
 	if (!capable(CAP_SYS_RESOURCE) && ufs_freespace(uspi, UFS_MINFREE) <= 0) {
-		mutex_unlock(&UFS_SB(sb)->s_lock);
+		unlock_ufs(sb);
 		UFSD("EXIT (FAILED)\n");
 		return 0;
 	}
@@ -424,7 +424,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
 			ufs_clear_frags(inode, result + oldcount,
 					newcount - oldcount, locked_page != NULL);
 		}
-		mutex_unlock(&UFS_SB(sb)->s_lock);
+		unlock_ufs(sb);
 		UFSD("EXIT, result %llu\n", (unsigned long long)result);
 		return result;
 	}
@@ -439,7 +439,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
 						fragment + count);
 		ufs_clear_frags(inode, result + oldcount, newcount - oldcount,
 				locked_page != NULL);
-		mutex_unlock(&UFS_SB(sb)->s_lock);
+		unlock_ufs(sb);
 		UFSD("EXIT, result %llu\n", (unsigned long long)result);
 		return result;
 	}
@@ -477,7 +477,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
 		*err = 0;
 		UFS_I(inode)->i_lastfrag = max(UFS_I(inode)->i_lastfrag,
 						fragment + count);
-		mutex_unlock(&UFS_SB(sb)->s_lock);
+		unlock_ufs(sb);
 		if (newcount < request)
 			ufs_free_fragments (inode, result + newcount, request - newcount);
 		ufs_free_fragments (inode, tmp, oldcount);
@@ -485,7 +485,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
 		return result;
 	}
 
-	mutex_unlock(&UFS_SB(sb)->s_lock);
+	unlock_ufs(sb);
 	UFSD("EXIT (FAILED)\n");
 	return 0;
 }		
diff --git a/fs/ufs/ialloc.c b/fs/ufs/ialloc.c
index 98f7211599ff..a9cc75ffa925 100644
--- a/fs/ufs/ialloc.c
+++ b/fs/ufs/ialloc.c
@@ -69,11 +69,11 @@ void ufs_free_inode (struct inode * inode)
 	
 	ino = inode->i_ino;
 
-	mutex_lock(&UFS_SB(sb)->s_lock);
+	lock_ufs(sb);
 
 	if (!((ino > 1) && (ino < (uspi->s_ncg * uspi->s_ipg )))) {
 		ufs_warning(sb, "ufs_free_inode", "reserved inode or nonexistent inode %u\n", ino);
-		mutex_unlock(&UFS_SB(sb)->s_lock);
+		unlock_ufs(sb);
 		return;
 	}
 	
@@ -81,7 +81,7 @@ void ufs_free_inode (struct inode * inode)
 	bit = ufs_inotocgoff (ino);
 	ucpi = ufs_load_cylinder (sb, cg);
 	if (!ucpi) {
-		mutex_unlock(&UFS_SB(sb)->s_lock);
+		unlock_ufs(sb);
 		return;
 	}
 	ucg = ubh_get_ucg(UCPI_UBH(ucpi));
@@ -115,7 +115,7 @@ void ufs_free_inode (struct inode * inode)
 		ubh_sync_block(UCPI_UBH(ucpi));
 	
 	ufs_mark_sb_dirty(sb);
-	mutex_unlock(&UFS_SB(sb)->s_lock);
+	unlock_ufs(sb);
 	UFSD("EXIT\n");
 }
 
@@ -193,7 +193,7 @@ struct inode *ufs_new_inode(struct inode *dir, umode_t mode)
 	sbi = UFS_SB(sb);
 	uspi = sbi->s_uspi;
 
-	mutex_lock(&sbi->s_lock);
+	lock_ufs(sb);
 
 	/*
 	 * Try to place the inode in its parent directory
@@ -328,21 +328,20 @@ cg_found:
 			sync_dirty_buffer(bh);
 		brelse(bh);
 	}
-
-	mutex_unlock(&sbi->s_lock);
+	unlock_ufs(sb);
 
 	UFSD("allocating inode %lu\n", inode->i_ino);
 	UFSD("EXIT\n");
 	return inode;
 
 fail_remove_inode:
-	mutex_unlock(&sbi->s_lock);
+	unlock_ufs(sb);
 	clear_nlink(inode);
 	iput(inode);
 	UFSD("EXIT (FAILED): err %d\n", err);
 	return ERR_PTR(err);
 failed:
-	mutex_unlock(&sbi->s_lock);
+	unlock_ufs(sb);
 	make_bad_inode(inode);
 	iput (inode);
 	UFSD("EXIT (FAILED): err %d\n", err);
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index c1183f9f69dc..b879f1ba3439 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -697,7 +697,6 @@ static int ufs_sync_fs(struct super_block *sb, int wait)
 	unsigned flags;
 
 	lock_ufs(sb);
-	mutex_lock(&UFS_SB(sb)->s_lock);
 
 	UFSD("ENTER\n");
 
@@ -715,7 +714,6 @@ static int ufs_sync_fs(struct super_block *sb, int wait)
 	ufs_put_cstotal(sb);
 
 	UFSD("EXIT\n");
-	mutex_unlock(&UFS_SB(sb)->s_lock);
 	unlock_ufs(sb);
 
 	return 0;
@@ -760,6 +758,7 @@ static void ufs_put_super(struct super_block *sb)
 
 	ubh_brelse_uspi (sbi->s_uspi);
 	kfree (sbi->s_uspi);
+	mutex_destroy(&sbi->mutex);
 	kfree (sbi);
 	sb->s_fs_info = NULL;
 	UFSD("EXIT\n");
@@ -786,6 +785,14 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
 	flags = 0;
 	
 	UFSD("ENTER\n");
+
+#ifndef CONFIG_UFS_FS_WRITE
+	if (!(sb->s_flags & MS_RDONLY)) {
+		printk("ufs was compiled with read-only support, "
+		       "can't be mounted as read-write\n");
+		return -EROFS;
+	}
+#endif
 		
 	sbi = kzalloc(sizeof(struct ufs_sb_info), GFP_KERNEL);
 	if (!sbi)
@@ -795,15 +802,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
 
 	UFSD("flag %u\n", (int)(sb->s_flags & MS_RDONLY));
 	
-#ifndef CONFIG_UFS_FS_WRITE
-	if (!(sb->s_flags & MS_RDONLY)) {
-		printk("ufs was compiled with read-only support, "
-		"can't be mounted as read-write\n");
-		goto failed;
-	}
-#endif
 	mutex_init(&sbi->mutex);
-	mutex_init(&sbi->s_lock);
 	spin_lock_init(&sbi->work_lock);
 	INIT_DELAYED_WORK(&sbi->sync_work, delayed_sync_fs);
 	/*
@@ -1257,6 +1256,7 @@ magic_found:
 	return 0;
 
 failed:
+	mutex_destroy(&sbi->mutex);
 	if (ubh)
 		ubh_brelse_uspi (uspi);
 	kfree (uspi);
@@ -1280,7 +1280,6 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
 
 	sync_filesystem(sb);
 	lock_ufs(sb);
-	mutex_lock(&UFS_SB(sb)->s_lock);
 	uspi = UFS_SB(sb)->s_uspi;
 	flags = UFS_SB(sb)->s_flags;
 	usb1 = ubh_get_usb_first(uspi);
@@ -1294,7 +1293,6 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
 	new_mount_opt = 0;
 	ufs_set_opt (new_mount_opt, ONERROR_LOCK);
 	if (!ufs_parse_options (data, &new_mount_opt)) {
-		mutex_unlock(&UFS_SB(sb)->s_lock);
 		unlock_ufs(sb);
 		return -EINVAL;
 	}
@@ -1302,14 +1300,12 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
 		new_mount_opt |= ufstype;
 	} else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) {
 		printk("ufstype can't be changed during remount\n");
-		mutex_unlock(&UFS_SB(sb)->s_lock);
 		unlock_ufs(sb);
 		return -EINVAL;
 	}
 
 	if ((*mount_flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) {
 		UFS_SB(sb)->s_mount_opt = new_mount_opt;
-		mutex_unlock(&UFS_SB(sb)->s_lock);
 		unlock_ufs(sb);
 		return 0;
 	}
@@ -1334,7 +1330,6 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
 #ifndef CONFIG_UFS_FS_WRITE
 		printk("ufs was compiled with read-only support, "
 		"can't be mounted as read-write\n");
-		mutex_unlock(&UFS_SB(sb)->s_lock);
 		unlock_ufs(sb);
 		return -EINVAL;
 #else
@@ -1344,13 +1339,11 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
 		    ufstype != UFS_MOUNT_UFSTYPE_SUNx86 &&
 		    ufstype != UFS_MOUNT_UFSTYPE_UFS2) {
 			printk("this ufstype is read-only supported\n");
-			mutex_unlock(&UFS_SB(sb)->s_lock);
 			unlock_ufs(sb);
 			return -EINVAL;
 		}
 		if (!ufs_read_cylinder_structures(sb)) {
 			printk("failed during remounting\n");
-			mutex_unlock(&UFS_SB(sb)->s_lock);
 			unlock_ufs(sb);
 			return -EPERM;
 		}
@@ -1358,7 +1351,6 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
 #endif
 	}
 	UFS_SB(sb)->s_mount_opt = new_mount_opt;
-	mutex_unlock(&UFS_SB(sb)->s_lock);
 	unlock_ufs(sb);
 	return 0;
 }
diff --git a/fs/ufs/ufs.h b/fs/ufs/ufs.h
index ff2c15ab81aa..343e6fc571e5 100644
--- a/fs/ufs/ufs.h
+++ b/fs/ufs/ufs.h
@@ -24,7 +24,6 @@ struct ufs_sb_info {
 	int work_queued; /* non-zero if the delayed work is queued */
 	struct delayed_work sync_work; /* FS sync delayed work */
 	spinlock_t work_lock; /* protects sync_work and work_queued */
-	struct mutex s_lock;
 };
 
 struct ufs_inode_info {
diff --git a/include/linux/key.h b/include/linux/key.h
index cd0abb8c9c33..017b0826642f 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -343,7 +343,7 @@ do {									\
 } while (0)
 
 #ifdef CONFIG_SYSCTL
-extern ctl_table key_sysctls[];
+extern struct ctl_table key_sysctls[];
 #endif
 /*
  * the userspace interface
diff --git a/include/linux/mfd/samsung/rtc.h b/include/linux/mfd/samsung/rtc.h
index 3e02b768d537..b6401e7661c7 100644
--- a/include/linux/mfd/samsung/rtc.h
+++ b/include/linux/mfd/samsung/rtc.h
@@ -18,38 +18,38 @@
 #ifndef __LINUX_MFD_SEC_RTC_H
 #define __LINUX_MFD_SEC_RTC_H
 
-enum sec_rtc_reg {
-	SEC_RTC_SEC,
-	SEC_RTC_MIN,
-	SEC_RTC_HOUR,
-	SEC_RTC_WEEKDAY,
-	SEC_RTC_DATE,
-	SEC_RTC_MONTH,
-	SEC_RTC_YEAR1,
-	SEC_RTC_YEAR2,
-	SEC_ALARM0_SEC,
-	SEC_ALARM0_MIN,
-	SEC_ALARM0_HOUR,
-	SEC_ALARM0_WEEKDAY,
-	SEC_ALARM0_DATE,
-	SEC_ALARM0_MONTH,
-	SEC_ALARM0_YEAR1,
-	SEC_ALARM0_YEAR2,
-	SEC_ALARM1_SEC,
-	SEC_ALARM1_MIN,
-	SEC_ALARM1_HOUR,
-	SEC_ALARM1_WEEKDAY,
-	SEC_ALARM1_DATE,
-	SEC_ALARM1_MONTH,
-	SEC_ALARM1_YEAR1,
-	SEC_ALARM1_YEAR2,
-	SEC_ALARM0_CONF,
-	SEC_ALARM1_CONF,
-	SEC_RTC_STATUS,
-	SEC_WTSR_SMPL_CNTL,
-	SEC_RTC_UDR_CON,
+enum s5m_rtc_reg {
+	S5M_RTC_SEC,
+	S5M_RTC_MIN,
+	S5M_RTC_HOUR,
+	S5M_RTC_WEEKDAY,
+	S5M_RTC_DATE,
+	S5M_RTC_MONTH,
+	S5M_RTC_YEAR1,
+	S5M_RTC_YEAR2,
+	S5M_ALARM0_SEC,
+	S5M_ALARM0_MIN,
+	S5M_ALARM0_HOUR,
+	S5M_ALARM0_WEEKDAY,
+	S5M_ALARM0_DATE,
+	S5M_ALARM0_MONTH,
+	S5M_ALARM0_YEAR1,
+	S5M_ALARM0_YEAR2,
+	S5M_ALARM1_SEC,
+	S5M_ALARM1_MIN,
+	S5M_ALARM1_HOUR,
+	S5M_ALARM1_WEEKDAY,
+	S5M_ALARM1_DATE,
+	S5M_ALARM1_MONTH,
+	S5M_ALARM1_YEAR1,
+	S5M_ALARM1_YEAR2,
+	S5M_ALARM0_CONF,
+	S5M_ALARM1_CONF,
+	S5M_RTC_STATUS,
+	S5M_WTSR_SMPL_CNTL,
+	S5M_RTC_UDR_CON,
 
-	SEC_RTC_REG_MAX,
+	S5M_RTC_REG_MAX,
 };
 
 enum s2mps_rtc_reg {
@@ -88,9 +88,9 @@ enum s2mps_rtc_reg {
 #define HOUR_12			(1 << 7)
 #define HOUR_AMPM		(1 << 6)
 #define HOUR_PM			(1 << 5)
-#define ALARM0_STATUS		(1 << 1)
-#define ALARM1_STATUS		(1 << 2)
-#define UPDATE_AD		(1 << 0)
+#define S5M_ALARM0_STATUS	(1 << 1)
+#define S5M_ALARM1_STATUS	(1 << 2)
+#define S5M_UPDATE_AD		(1 << 0)
 
 #define S2MPS_ALARM0_STATUS	(1 << 2)
 #define S2MPS_ALARM1_STATUS	(1 << 1)
@@ -101,16 +101,26 @@ enum s2mps_rtc_reg {
 #define MODEL24_SHIFT		1
 #define MODEL24_MASK		(1 << MODEL24_SHIFT)
 /* RTC Update Register1 */
-#define RTC_UDR_SHIFT		0
-#define RTC_UDR_MASK		(1 << RTC_UDR_SHIFT)
+#define S5M_RTC_UDR_SHIFT	0
+#define S5M_RTC_UDR_MASK	(1 << S5M_RTC_UDR_SHIFT)
 #define S2MPS_RTC_WUDR_SHIFT	4
 #define S2MPS_RTC_WUDR_MASK	(1 << S2MPS_RTC_WUDR_SHIFT)
 #define S2MPS_RTC_RUDR_SHIFT	0
 #define S2MPS_RTC_RUDR_MASK	(1 << S2MPS_RTC_RUDR_SHIFT)
 #define RTC_TCON_SHIFT		1
 #define RTC_TCON_MASK		(1 << RTC_TCON_SHIFT)
-#define RTC_TIME_EN_SHIFT	3
-#define RTC_TIME_EN_MASK	(1 << RTC_TIME_EN_SHIFT)
+#define S5M_RTC_TIME_EN_SHIFT	3
+#define S5M_RTC_TIME_EN_MASK	(1 << S5M_RTC_TIME_EN_SHIFT)
+/*
+ * UDR_T field in S5M_RTC_UDR_CON register determines the time needed
+ * for updating alarm and time registers. Default is 7.32 ms.
+ */
+#define S5M_RTC_UDR_T_SHIFT	6
+#define S5M_RTC_UDR_T_MASK	(0x3 << S5M_RTC_UDR_T_SHIFT)
+#define S5M_RTC_UDR_T_7320_US	(0x0 << S5M_RTC_UDR_T_SHIFT)
+#define S5M_RTC_UDR_T_1830_US	(0x1 << S5M_RTC_UDR_T_SHIFT)
+#define S5M_RTC_UDR_T_3660_US	(0x2 << S5M_RTC_UDR_T_SHIFT)
+#define S5M_RTC_UDR_T_450_US	(0x3 << S5M_RTC_UDR_T_SHIFT)
 
 /* RTC Hour register */
 #define HOUR_PM_SHIFT		6
diff --git a/include/linux/nmi.h b/include/linux/nmi.h
index a17ab6398d7c..447775ee2c4b 100644
--- a/include/linux/nmi.h
+++ b/include/linux/nmi.h
@@ -57,6 +57,7 @@ int hw_nmi_is_cpu_stuck(struct pt_regs *);
 u64 hw_nmi_get_sample_period(int watchdog_thresh);
 extern int watchdog_user_enabled;
 extern int watchdog_thresh;
+extern int sysctl_softlockup_all_cpu_backtrace;
 struct ctl_table;
 extern int proc_dowatchdog(struct ctl_table *, int ,
 			   void __user *, size_t *, loff_t *);
diff --git a/init/main.c b/init/main.c
index 855c601fbc70..96e62ece01c2 100644
--- a/init/main.c
+++ b/init/main.c
@@ -6,7 +6,7 @@
  *  GK 2/5/95  -  Changed to support mounting root fs via NFS
  *  Added initrd & change_root: Werner Almesberger & Hans Lermen, Feb '96
  *  Moan early if gcc is old, avoiding bogus kernels - Paul Gortmaker, May '96
- *  Simplified starting of init:  Michael A. Griffith <grif@acm.org> 
+ *  Simplified starting of init:  Michael A. Griffith <grif@acm.org>
  */
 
 #define DEBUG		/* Enable initcall_debug */
@@ -136,7 +136,7 @@ static char *ramdisk_execute_command;
  * Used to generate warnings if static_key manipulation functions are used
  * before jump_label_init is called.
  */
-bool static_key_initialized __read_mostly = false;
+bool static_key_initialized __read_mostly;
 EXPORT_SYMBOL_GPL(static_key_initialized);
 
 /*
@@ -159,8 +159,8 @@ static int __init set_reset_devices(char *str)
 
 __setup("reset_devices", set_reset_devices);
 
-static const char * argv_init[MAX_INIT_ARGS+2] = { "init", NULL, };
-const char * envp_init[MAX_INIT_ENVS+2] = { "HOME=/", "TERM=linux", NULL, };
+static const char *argv_init[MAX_INIT_ARGS+2] = { "init", NULL, };
+const char *envp_init[MAX_INIT_ENVS+2] = { "HOME=/", "TERM=linux", NULL, };
 static const char *panic_later, *panic_param;
 
 extern const struct obs_kernel_param __setup_start[], __setup_end[];
@@ -199,7 +199,6 @@ static int __init obsolete_checksetup(char *line)
  * still work even if initially too large, it will just take slightly longer
  */
 unsigned long loops_per_jiffy = (1<<12);
-
 EXPORT_SYMBOL(loops_per_jiffy);
 
 static int __init debug_kernel(char *str)
@@ -376,8 +375,8 @@ static void __init setup_command_line(char *command_line)
 	initcall_command_line =
 		memblock_virt_alloc(strlen(boot_command_line) + 1, 0);
 	static_command_line = memblock_virt_alloc(strlen(command_line) + 1, 0);
-	strcpy (saved_command_line, boot_command_line);
-	strcpy (static_command_line, command_line);
+	strcpy(saved_command_line, boot_command_line);
+	strcpy(static_command_line, command_line);
 }
 
 /*
@@ -445,8 +444,8 @@ void __init parse_early_options(char *cmdline)
 /* Arch code calls this early on, or if not, just before other parsing. */
 void __init parse_early_param(void)
 {
-	static __initdata int done = 0;
-	static __initdata char tmp_cmdline[COMMAND_LINE_SIZE];
+	static int done __initdata;
+	static char tmp_cmdline[COMMAND_LINE_SIZE] __initdata;
 
 	if (done)
 		return;
@@ -500,7 +499,8 @@ static void __init mm_init(void)
 
 asmlinkage __visible void __init start_kernel(void)
 {
-	char * command_line, *after_dashes;
+	char *command_line;
+	char *after_dashes;
 	extern const struct kernel_param __start___param[], __stop___param[];
 
 	/*
@@ -572,7 +572,8 @@ asmlinkage __visible void __init start_kernel(void)
 	 * fragile until we cpu_idle() for the first time.
 	 */
 	preempt_disable();
-	if (WARN(!irqs_disabled(), "Interrupts were enabled *very* early, fixing it\n"))
+	if (WARN(!irqs_disabled(),
+		 "Interrupts were enabled *very* early, fixing it\n"))
 		local_irq_disable();
 	idr_init_cache();
 	rcu_init();
diff --git a/ipc/ipc_sysctl.c b/ipc/ipc_sysctl.c
index 998d31b230f1..c3f0326e98db 100644
--- a/ipc/ipc_sysctl.c
+++ b/ipc/ipc_sysctl.c
@@ -18,7 +18,7 @@
 #include <linux/msg.h>
 #include "util.h"
 
-static void *get_ipc(ctl_table *table)
+static void *get_ipc(struct ctl_table *table)
 {
 	char *which = table->data;
 	struct ipc_namespace *ipc_ns = current->nsproxy->ipc_ns;
@@ -27,7 +27,7 @@ static void *get_ipc(ctl_table *table)
 }
 
 #ifdef CONFIG_PROC_SYSCTL
-static int proc_ipc_dointvec(ctl_table *table, int write,
+static int proc_ipc_dointvec(struct ctl_table *table, int write,
 	void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct ctl_table ipc_table;
@@ -38,7 +38,7 @@ static int proc_ipc_dointvec(ctl_table *table, int write,
 	return proc_dointvec(&ipc_table, write, buffer, lenp, ppos);
 }
 
-static int proc_ipc_dointvec_minmax(ctl_table *table, int write,
+static int proc_ipc_dointvec_minmax(struct ctl_table *table, int write,
 	void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct ctl_table ipc_table;
@@ -49,7 +49,7 @@ static int proc_ipc_dointvec_minmax(ctl_table *table, int write,
 	return proc_dointvec_minmax(&ipc_table, write, buffer, lenp, ppos);
 }
 
-static int proc_ipc_dointvec_minmax_orphans(ctl_table *table, int write,
+static int proc_ipc_dointvec_minmax_orphans(struct ctl_table *table, int write,
 	void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct ipc_namespace *ns = current->nsproxy->ipc_ns;
@@ -62,7 +62,7 @@ static int proc_ipc_dointvec_minmax_orphans(ctl_table *table, int write,
 	return err;
 }
 
-static int proc_ipc_callback_dointvec_minmax(ctl_table *table, int write,
+static int proc_ipc_callback_dointvec_minmax(struct ctl_table *table, int write,
 	void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct ctl_table ipc_table;
@@ -85,7 +85,7 @@ static int proc_ipc_callback_dointvec_minmax(ctl_table *table, int write,
 	return rc;
 }
 
-static int proc_ipc_doulongvec_minmax(ctl_table *table, int write,
+static int proc_ipc_doulongvec_minmax(struct ctl_table *table, int write,
 	void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct ctl_table ipc_table;
@@ -119,7 +119,7 @@ static void ipc_auto_callback(int val)
 	}
 }
 
-static int proc_ipcauto_dointvec_minmax(ctl_table *table, int write,
+static int proc_ipcauto_dointvec_minmax(struct ctl_table *table, int write,
 	void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct ctl_table ipc_table;
diff --git a/ipc/mq_sysctl.c b/ipc/mq_sysctl.c
index 5bb8bfe67149..68d4e953762c 100644
--- a/ipc/mq_sysctl.c
+++ b/ipc/mq_sysctl.c
@@ -14,7 +14,7 @@
 #include <linux/sysctl.h>
 
 #ifdef CONFIG_PROC_SYSCTL
-static void *get_mq(ctl_table *table)
+static void *get_mq(struct ctl_table *table)
 {
 	char *which = table->data;
 	struct ipc_namespace *ipc_ns = current->nsproxy->ipc_ns;
@@ -22,7 +22,7 @@ static void *get_mq(ctl_table *table)
 	return which;
 }
 
-static int proc_mq_dointvec(ctl_table *table, int write,
+static int proc_mq_dointvec(struct ctl_table *table, int write,
 			    void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct ctl_table mq_table;
@@ -32,7 +32,7 @@ static int proc_mq_dointvec(ctl_table *table, int write,
 	return proc_dointvec(&mq_table, write, buffer, lenp, ppos);
 }
 
-static int proc_mq_dointvec_minmax(ctl_table *table, int write,
+static int proc_mq_dointvec_minmax(struct ctl_table *table, int write,
 	void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct ctl_table mq_table;
@@ -53,7 +53,7 @@ static int msg_max_limit_max = HARD_MSGMAX;
 static int msg_maxsize_limit_min = MIN_MSGSIZEMAX;
 static int msg_maxsize_limit_max = HARD_MSGSIZEMAX;
 
-static ctl_table mq_sysctls[] = {
+static struct ctl_table mq_sysctls[] = {
 	{
 		.procname	= "queues_max",
 		.data		= &init_ipc_ns.mq_queues_max,
@@ -100,7 +100,7 @@ static ctl_table mq_sysctls[] = {
 	{}
 };
 
-static ctl_table mq_sysctl_dir[] = {
+static struct ctl_table mq_sysctl_dir[] = {
 	{
 		.procname	= "mqueue",
 		.mode		= 0555,
@@ -109,7 +109,7 @@ static ctl_table mq_sysctl_dir[] = {
 	{}
 };
 
-static ctl_table mq_sysctl_root[] = {
+static struct ctl_table mq_sysctl_root[] = {
 	{
 		.procname	= "fs",
 		.mode		= 0555,
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 3214289df5a7..2ac9f133c4da 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -76,7 +76,7 @@ static bool kprobes_all_disarmed;
 
 /* This protects kprobe_table and optimizing_list */
 static DEFINE_MUTEX(kprobe_mutex);
-static DEFINE_PER_CPU(struct kprobe *, kprobe_instance) = NULL;
+static DEFINE_PER_CPU(struct kprobe *, kprobe_instance);
 static struct {
 	raw_spinlock_t lock ____cacheline_aligned_in_smp;
 } kretprobe_table_locks[KPROBE_TABLE_SIZE];
@@ -297,9 +297,9 @@ static inline void reset_kprobe_instance(void)
 
 /*
  * This routine is called either:
- * 	- under the kprobe_mutex - during kprobe_[un]register()
- * 				OR
- * 	- with preemption disabled - from arch/xxx/kernel/kprobes.c
+ *	- under the kprobe_mutex - during kprobe_[un]register()
+ *				OR
+ *	- with preemption disabled - from arch/xxx/kernel/kprobes.c
  */
 struct kprobe *get_kprobe(void *addr)
 {
@@ -567,7 +567,8 @@ static void wait_for_kprobe_optimizer(void)
 {
 	mutex_lock(&kprobe_mutex);
 
-	while (!list_empty(&optimizing_list) || !list_empty(&unoptimizing_list)) {
+	while (!list_empty(&optimizing_list) ||
+	       !list_empty(&unoptimizing_list)) {
 		mutex_unlock(&kprobe_mutex);
 
 		/* this will also make optimizing_work execute immmediately */
@@ -676,8 +677,8 @@ static void reuse_unused_kprobe(struct kprobe *ap)
 	 */
 	op = container_of(ap, struct optimized_kprobe, kp);
 	if (unlikely(list_empty(&op->list)))
-		printk(KERN_WARNING "Warning: found a stray unused "
-			"aggrprobe@%p\n", ap->addr);
+		pr_warn("Warning: found a stray unused aggrprobe@%p\n",
+			ap->addr);
 	/* Enable the probe again */
 	ap->flags &= ~KPROBE_FLAG_DISABLED;
 	/* Optimize it again (remove from op->list) */
@@ -794,7 +795,7 @@ static void optimize_all_kprobes(void)
 			if (!kprobe_disabled(p))
 				optimize_kprobe(p);
 	}
-	printk(KERN_INFO "Kprobes globally optimized\n");
+	pr_info("Kprobes globally optimized\n");
 out:
 	mutex_unlock(&kprobe_mutex);
 }
@@ -824,7 +825,7 @@ static void unoptimize_all_kprobes(void)
 
 	/* Wait for unoptimizing completion */
 	wait_for_kprobe_optimizer();
-	printk(KERN_INFO "Kprobes globally unoptimized\n");
+	pr_info("Kprobes globally unoptimized\n");
 }
 
 static DEFINE_MUTEX(kprobe_sysctl_mutex);
@@ -896,7 +897,7 @@ static void __disarm_kprobe(struct kprobe *p, bool reopt)
 /* There should be no unused kprobes can be reused without optimization */
 static void reuse_unused_kprobe(struct kprobe *ap)
 {
-	printk(KERN_ERR "Error: There should be no unused kprobe here.\n");
+	pr_err("Error: There should be no unused kprobe here.\n");
 	BUG_ON(kprobe_unused(ap));
 }
 
@@ -955,7 +956,8 @@ static void disarm_kprobe_ftrace(struct kprobe *p)
 	}
 	ret = ftrace_set_filter_ip(&kprobe_ftrace_ops,
 			   (unsigned long)p->addr, 1, 0);
-	WARN(ret < 0, "Failed to disarm kprobe-ftrace at %p (%d)\n", p->addr, ret);
+	WARN(ret < 0, "Failed to disarm kprobe-ftrace at %p (%d)\n",
+	     p->addr, ret);
 }
 #else	/* !CONFIG_KPROBES_ON_FTRACE */
 #define prepare_kprobe(p)	arch_prepare_kprobe(p)
@@ -1389,7 +1391,7 @@ static struct kprobe *__get_valid_kprobe(struct kprobe *p)
 	if (p != ap) {
 		list_for_each_entry_rcu(list_p, &ap->list, list)
 			if (list_p == p)
-			/* kprobe p is a valid probe */
+				/* kprobe p is a valid probe */
 				goto valid;
 		return NULL;
 	}
@@ -2018,8 +2020,8 @@ EXPORT_SYMBOL_GPL(enable_kprobe);
 
 void dump_kprobe(struct kprobe *kp)
 {
-	printk(KERN_WARNING "Dumping kprobe:\n");
-	printk(KERN_WARNING "Name: %s\nAddress: %p\nOffset: %x\n",
+	pr_warn("Dumping kprobe:\n");
+	pr_warn("Name: %s\nAddress: %p\nOffset: %x\n",
 	       kp->symbol_name, kp->addr, kp->offset);
 }
 NOKPROBE_SYMBOL(dump_kprobe);
@@ -2128,7 +2130,7 @@ static int __init init_kprobes(void)
 			kprobe_lookup_name(kretprobe_blacklist[i].name,
 					   kretprobe_blacklist[i].addr);
 			if (!kretprobe_blacklist[i].addr)
-				printk("kretprobe: lookup failed: %s\n",
+				pr_warn("kretprobe: lookup failed: %s\n",
 				       kretprobe_blacklist[i].name);
 		}
 	}
@@ -2310,7 +2312,7 @@ static void arm_all_kprobes(void)
 	}
 
 	kprobes_all_disarmed = false;
-	printk(KERN_INFO "Kprobes globally enabled\n");
+	pr_info("Kprobes globally enabled\n");
 
 already_enabled:
 	mutex_unlock(&kprobe_mutex);
@@ -2332,7 +2334,7 @@ static void disarm_all_kprobes(void)
 	}
 
 	kprobes_all_disarmed = true;
-	printk(KERN_INFO "Kprobes globally disabled\n");
+	pr_info("Kprobes globally disabled\n");
 
 	for (i = 0; i < KPROBE_TABLE_SIZE; i++) {
 		head = &kprobe_table[i];
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 737547e4fba4..c91c7528f676 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -202,7 +202,7 @@ static int proc_dostring_coredump(struct ctl_table *table, int write,
 /* Note: sysrq code uses it's own private copy */
 static int __sysrq_enabled = CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE;
 
-static int sysrq_sysctl_handler(ctl_table *table, int write,
+static int sysrq_sysctl_handler(struct ctl_table *table, int write,
 				void __user *buffer, size_t *lenp,
 				loff_t *ppos)
 {
@@ -865,6 +865,17 @@ static struct ctl_table kern_table[] = {
 		.extra1		= &zero,
 		.extra2		= &one,
 	},
+#ifdef CONFIG_SMP
+	{
+		.procname	= "softlockup_all_cpu_backtrace",
+		.data		= &sysctl_softlockup_all_cpu_backtrace,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1		= &zero,
+		.extra2		= &one,
+	},
+#endif /* CONFIG_SMP */
 	{
 		.procname       = "nmi_watchdog",
 		.data           = &watchdog_user_enabled,
diff --git a/kernel/utsname_sysctl.c b/kernel/utsname_sysctl.c
index 6fbe811c7ad1..c8eac43267e9 100644
--- a/kernel/utsname_sysctl.c
+++ b/kernel/utsname_sysctl.c
@@ -17,7 +17,7 @@
 
 #ifdef CONFIG_PROC_SYSCTL
 
-static void *get_uts(ctl_table *table, int write)
+static void *get_uts(struct ctl_table *table, int write)
 {
 	char *which = table->data;
 	struct uts_namespace *uts_ns;
@@ -32,7 +32,7 @@ static void *get_uts(ctl_table *table, int write)
 	return which;
 }
 
-static void put_uts(ctl_table *table, int write, void *which)
+static void put_uts(struct ctl_table *table, int write, void *which)
 {
 	if (!write)
 		up_read(&uts_sem);
@@ -44,7 +44,7 @@ static void put_uts(ctl_table *table, int write, void *which)
  *	Special case of dostring for the UTS structure. This has locks
  *	to observe. Should this be in kernel/sys.c ????
  */
-static int proc_do_uts_string(ctl_table *table, int write,
+static int proc_do_uts_string(struct ctl_table *table, int write,
 		  void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct ctl_table uts_table;
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index 516203e665fc..5d2c48f5083b 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -31,6 +31,12 @@
 
 int watchdog_user_enabled = 1;
 int __read_mostly watchdog_thresh = 10;
+#ifdef CONFIG_SMP
+int __read_mostly sysctl_softlockup_all_cpu_backtrace;
+#else
+#define sysctl_softlockup_all_cpu_backtrace 0
+#endif
+
 static int __read_mostly watchdog_running;
 static u64 __read_mostly sample_period;
 
@@ -47,6 +53,7 @@ static DEFINE_PER_CPU(bool, watchdog_nmi_touch);
 static DEFINE_PER_CPU(unsigned long, hrtimer_interrupts_saved);
 static DEFINE_PER_CPU(struct perf_event *, watchdog_ev);
 #endif
+static unsigned long soft_lockup_nmi_warn;
 
 /* boot commands */
 /*
@@ -95,6 +102,15 @@ static int __init nosoftlockup_setup(char *str)
 }
 __setup("nosoftlockup", nosoftlockup_setup);
 /*  */
+#ifdef CONFIG_SMP
+static int __init softlockup_all_cpu_backtrace_setup(char *str)
+{
+	sysctl_softlockup_all_cpu_backtrace =
+		!!simple_strtol(str, NULL, 0);
+	return 1;
+}
+__setup("softlockup_all_cpu_backtrace=", softlockup_all_cpu_backtrace_setup);
+#endif
 
 /*
  * Hard-lockup warnings should be triggered after just a few seconds. Soft-
@@ -244,9 +260,11 @@ static void watchdog_overflow_callback(struct perf_event *event,
 			return;
 
 		if (hardlockup_panic)
-			panic("Watchdog detected hard LOCKUP on cpu %d", this_cpu);
+			panic("Watchdog detected hard LOCKUP on cpu %d",
+			      this_cpu);
 		else
-			WARN(1, "Watchdog detected hard LOCKUP on cpu %d", this_cpu);
+			WARN(1, "Watchdog detected hard LOCKUP on cpu %d",
+			     this_cpu);
 
 		__this_cpu_write(hard_watchdog_warn, true);
 		return;
@@ -271,6 +289,7 @@ static enum hrtimer_restart watchdog_timer_fn(struct hrtimer *hrtimer)
 	unsigned long touch_ts = __this_cpu_read(watchdog_touch_ts);
 	struct pt_regs *regs = get_irq_regs();
 	int duration;
+	int softlockup_all_cpu_backtrace = sysctl_softlockup_all_cpu_backtrace;
 
 	/* kick the hardlockup detector */
 	watchdog_interrupt_count();
@@ -317,7 +336,18 @@ static enum hrtimer_restart watchdog_timer_fn(struct hrtimer *hrtimer)
 		if (__this_cpu_read(soft_watchdog_warn) == true)
 			return HRTIMER_RESTART;
 
-		printk(KERN_EMERG "BUG: soft lockup - CPU#%d stuck for %us! [%s:%d]\n",
+		if (softlockup_all_cpu_backtrace) {
+			/* Prevent multiple soft-lockup reports if one cpu is already
+			 * engaged in dumping cpu back traces
+			 */
+			if (test_and_set_bit(0, &soft_lockup_nmi_warn)) {
+				/* Someone else will report us. Let's give up */
+				__this_cpu_write(soft_watchdog_warn, true);
+				return HRTIMER_RESTART;
+			}
+		}
+
+		pr_emerg("BUG: soft lockup - CPU#%d stuck for %us! [%s:%d]\n",
 			smp_processor_id(), duration,
 			current->comm, task_pid_nr(current));
 		print_modules();
@@ -327,6 +357,17 @@ static enum hrtimer_restart watchdog_timer_fn(struct hrtimer *hrtimer)
 		else
 			dump_stack();
 
+		if (softlockup_all_cpu_backtrace) {
+			/* Avoid generating two back traces for current
+			 * given that one is already made above
+			 */
+			trigger_allbutself_cpu_backtrace();
+
+			clear_bit(0, &soft_lockup_nmi_warn);
+			/* Barrier to sync with other cpus */
+			smp_mb__after_atomic();
+		}
+
 		if (softlockup_panic)
 			panic("softlockup: hung tasks");
 		__this_cpu_write(soft_watchdog_warn, true);
@@ -445,7 +486,7 @@ static int watchdog_nmi_enable(unsigned int cpu)
 	if (PTR_ERR(event) == -EOPNOTSUPP)
 		pr_info("disabled (cpu%i): not supported (no LAPIC?)\n", cpu);
 	else if (PTR_ERR(event) == -ENOENT)
-		pr_warning("disabled (cpu%i): hardware events not enabled\n",
+		pr_warn("disabled (cpu%i): hardware events not enabled\n",
 			 cpu);
 	else
 		pr_err("disabled (cpu%i): unable to create perf event: %ld\n",
diff --git a/lib/test_bpf.c b/lib/test_bpf.c
index 3603ebcd5d65..0fa58d2c7ab9 100644
--- a/lib/test_bpf.c
+++ b/lib/test_bpf.c
@@ -54,7 +54,7 @@ struct bpf_test {
 	union {
 		struct sock_filter insns[MAX_INSNS];
 		struct sock_filter_int insns_int[MAX_INSNS];
-	};
+	} u;
 	enum {
 		NO_DATA,
 		EXPECTED_FAIL,
@@ -71,7 +71,7 @@ struct bpf_test {
 static struct bpf_test tests[] = {
 	{
 		"TAX",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_IMM, 1),
 			BPF_STMT(BPF_MISC | BPF_TAX, 0),
 			BPF_STMT(BPF_LD | BPF_IMM, 2),
@@ -90,7 +90,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"TXA",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LDX | BPF_LEN, 0),
 			BPF_STMT(BPF_MISC | BPF_TXA, 0),
 			BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
@@ -102,7 +102,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"ADD_SUB_MUL_K",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_IMM, 1),
 			BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 2),
 			BPF_STMT(BPF_LDX | BPF_IMM, 3),
@@ -117,7 +117,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"DIV_KX",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_IMM, 8),
 			BPF_STMT(BPF_ALU | BPF_DIV | BPF_K, 2),
 			BPF_STMT(BPF_MISC | BPF_TAX, 0),
@@ -135,7 +135,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"AND_OR_LSH_K",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_IMM, 0xff),
 			BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xf0),
 			BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 27),
@@ -151,7 +151,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"LD_IND",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LDX | BPF_LEN, 0),
 			BPF_STMT(BPF_LD | BPF_H | BPF_IND, MAX_K),
 			BPF_STMT(BPF_RET | BPF_K, 1)
@@ -162,7 +162,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"LD_ABS",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_W | BPF_ABS, 1000),
 			BPF_STMT(BPF_RET | BPF_K, 1)
 		},
@@ -172,7 +172,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"LD_ABS_LL",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_B | BPF_ABS, SKF_LL_OFF),
 			BPF_STMT(BPF_MISC | BPF_TAX, 0),
 			BPF_STMT(BPF_LD | BPF_B | BPF_ABS, SKF_LL_OFF + 1),
@@ -185,7 +185,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"LD_IND_LL",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_IMM, SKF_LL_OFF - 1),
 			BPF_STMT(BPF_LDX | BPF_LEN, 0),
 			BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
@@ -199,7 +199,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"LD_ABS_NET",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_B | BPF_ABS, SKF_NET_OFF),
 			BPF_STMT(BPF_MISC | BPF_TAX, 0),
 			BPF_STMT(BPF_LD | BPF_B | BPF_ABS, SKF_NET_OFF + 1),
@@ -212,7 +212,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"LD_IND_NET",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_IMM, SKF_NET_OFF - 15),
 			BPF_STMT(BPF_LDX | BPF_LEN, 0),
 			BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
@@ -226,7 +226,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"LD_PKTTYPE",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_W | BPF_ABS,
 				 SKF_AD_OFF + SKF_AD_PKTTYPE),
 			BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, SKB_TYPE, 1, 0),
@@ -247,7 +247,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"LD_MARK",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_W | BPF_ABS,
 				 SKF_AD_OFF + SKF_AD_MARK),
 			BPF_STMT(BPF_RET | BPF_A, 0)
@@ -258,7 +258,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"LD_RXHASH",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_W | BPF_ABS,
 				 SKF_AD_OFF + SKF_AD_RXHASH),
 			BPF_STMT(BPF_RET | BPF_A, 0)
@@ -269,7 +269,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"LD_QUEUE",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_W | BPF_ABS,
 				 SKF_AD_OFF + SKF_AD_QUEUE),
 			BPF_STMT(BPF_RET | BPF_A, 0)
@@ -280,7 +280,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"LD_PROTOCOL",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 1),
 			BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 20, 1, 0),
 			BPF_STMT(BPF_RET | BPF_K, 0),
@@ -299,7 +299,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"LD_VLAN_TAG",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_W | BPF_ABS,
 				 SKF_AD_OFF + SKF_AD_VLAN_TAG),
 			BPF_STMT(BPF_RET | BPF_A, 0)
@@ -313,7 +313,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"LD_VLAN_TAG_PRESENT",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_W | BPF_ABS,
 				 SKF_AD_OFF + SKF_AD_VLAN_TAG_PRESENT),
 			BPF_STMT(BPF_RET | BPF_A, 0)
@@ -327,7 +327,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"LD_IFINDEX",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_W | BPF_ABS,
 				 SKF_AD_OFF + SKF_AD_IFINDEX),
 			BPF_STMT(BPF_RET | BPF_A, 0)
@@ -338,7 +338,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"LD_HATYPE",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_W | BPF_ABS,
 				 SKF_AD_OFF + SKF_AD_HATYPE),
 			BPF_STMT(BPF_RET | BPF_A, 0)
@@ -349,7 +349,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"LD_CPU",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_W | BPF_ABS,
 				 SKF_AD_OFF + SKF_AD_CPU),
 			BPF_STMT(BPF_MISC | BPF_TAX, 0),
@@ -364,7 +364,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"LD_NLATTR",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LDX | BPF_IMM, 1),
 			BPF_STMT(BPF_MISC | BPF_TXA, 0),
 			BPF_STMT(BPF_LDX | BPF_IMM, 3),
@@ -378,7 +378,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"LD_NLATTR_NEST",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_IMM, 1),
 			BPF_STMT(BPF_LDX | BPF_IMM, 3),
 			BPF_STMT(BPF_LD | BPF_W | BPF_ABS,
@@ -412,7 +412,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"LD_PAYLOAD_OFF",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_W | BPF_ABS,
 				 SKF_AD_OFF + SKF_AD_PAY_OFFSET),
 			BPF_STMT(BPF_LD | BPF_W | BPF_ABS,
@@ -439,7 +439,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"LD_ANC_XOR",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_IMM, 10),
 			BPF_STMT(BPF_LDX | BPF_IMM, 300),
 			BPF_STMT(BPF_LD | BPF_W | BPF_ABS,
@@ -452,7 +452,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"SPILL_FILL",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LDX | BPF_LEN, 0),
 			BPF_STMT(BPF_LD | BPF_IMM, 2),
 			BPF_STMT(BPF_ALU | BPF_RSH, 1),
@@ -474,7 +474,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"JEQ",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LDX | BPF_LEN, 0),
 			BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
 			BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, 0, 1),
@@ -487,7 +487,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"JGT",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LDX | BPF_LEN, 0),
 			BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
 			BPF_JUMP(BPF_JMP | BPF_JGT | BPF_X, 0, 0, 1),
@@ -500,7 +500,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"JGE",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LDX | BPF_LEN, 0),
 			BPF_STMT(BPF_LD | BPF_B | BPF_IND, MAX_K),
 			BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 1, 1, 0),
@@ -519,7 +519,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"JSET",
-		.insns = {
+		.u.insns = {
 			BPF_JUMP(BPF_JMP | BPF_JA, 0, 0, 0),
 			BPF_JUMP(BPF_JMP | BPF_JA, 1, 1, 1),
 			BPF_JUMP(BPF_JMP | BPF_JA, 0, 0, 0),
@@ -551,7 +551,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"tcpdump port 22",
-		.insns = {
+		.u.insns = {
 			{ 0x28,  0,  0, 0x0000000c },
 			{ 0x15,  0,  8, 0x000086dd },
 			{ 0x30,  0,  0, 0x00000014 },
@@ -596,7 +596,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"tcpdump complex",
-		.insns = {
+		.u.insns = {
 			/* tcpdump -nei eth0 'tcp port 22 and (((ip[2:2] -
 			 * ((ip[0]&0xf)<<2)) - ((tcp[12]&0xf0)>>2)) != 0) and
 			 * (len > 115 or len < 30000000000)' -d
@@ -649,7 +649,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"RET_A",
-		.insns = {
+		.u.insns = {
 			/* check that unitialized X and A contain zeros */
 			BPF_STMT(BPF_MISC | BPF_TXA, 0),
 			BPF_STMT(BPF_RET | BPF_A, 0)
@@ -660,7 +660,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"INT: ADD trivial",
-		.insns_int = {
+		.u.insns_int = {
 			BPF_ALU64_IMM(BPF_MOV, R1, 1),
 			BPF_ALU64_IMM(BPF_ADD, R1, 2),
 			BPF_ALU64_IMM(BPF_MOV, R2, 3),
@@ -676,7 +676,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"INT: MUL_X",
-		.insns_int = {
+		.u.insns_int = {
 			BPF_ALU64_IMM(BPF_MOV, R0, -1),
 			BPF_ALU64_IMM(BPF_MOV, R1, -1),
 			BPF_ALU64_IMM(BPF_MOV, R2, 3),
@@ -692,7 +692,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"INT: MUL_X2",
-		.insns_int = {
+		.u.insns_int = {
 			BPF_ALU32_IMM(BPF_MOV, R0, -1),
 			BPF_ALU32_IMM(BPF_MOV, R1, -1),
 			BPF_ALU32_IMM(BPF_MOV, R2, 3),
@@ -709,7 +709,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"INT: MUL32_X",
-		.insns_int = {
+		.u.insns_int = {
 			BPF_ALU32_IMM(BPF_MOV, R0, -1),
 			BPF_ALU64_IMM(BPF_MOV, R1, -1),
 			BPF_ALU32_IMM(BPF_MOV, R2, 3),
@@ -730,7 +730,7 @@ static struct bpf_test tests[] = {
 		 * different asm code.
 		 */
 		"INT: ADD 64-bit",
-		.insns_int = {
+		.u.insns_int = {
 			BPF_ALU64_IMM(BPF_MOV, R0, 0),
 			BPF_ALU64_IMM(BPF_MOV, R1, 1),
 			BPF_ALU64_IMM(BPF_MOV, R2, 2),
@@ -888,7 +888,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"INT: ADD 32-bit",
-		.insns_int = {
+		.u.insns_int = {
 			BPF_ALU32_IMM(BPF_MOV, R0, 20),
 			BPF_ALU32_IMM(BPF_MOV, R1, 1),
 			BPF_ALU32_IMM(BPF_MOV, R2, 2),
@@ -1034,7 +1034,7 @@ static struct bpf_test tests[] = {
 	},
 	{	/* Mainly checking JIT here. */
 		"INT: SUB",
-		.insns_int = {
+		.u.insns_int = {
 			BPF_ALU64_IMM(BPF_MOV, R0, 0),
 			BPF_ALU64_IMM(BPF_MOV, R1, 1),
 			BPF_ALU64_IMM(BPF_MOV, R2, 2),
@@ -1167,7 +1167,7 @@ static struct bpf_test tests[] = {
 	},
 	{	/* Mainly checking JIT here. */
 		"INT: XOR",
-		.insns_int = {
+		.u.insns_int = {
 			BPF_ALU64_REG(BPF_SUB, R0, R0),
 			BPF_ALU64_REG(BPF_XOR, R1, R1),
 			BPF_JMP_REG(BPF_JEQ, R0, R1, 1),
@@ -1233,7 +1233,7 @@ static struct bpf_test tests[] = {
 	},
 	{	/* Mainly checking JIT here. */
 		"INT: MUL",
-		.insns_int = {
+		.u.insns_int = {
 			BPF_ALU64_IMM(BPF_MOV, R0, 11),
 			BPF_ALU64_IMM(BPF_MOV, R1, 1),
 			BPF_ALU64_IMM(BPF_MOV, R2, 2),
@@ -1295,7 +1295,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"INT: ALU MIX",
-		.insns_int = {
+		.u.insns_int = {
 			BPF_ALU64_IMM(BPF_MOV, R0, 11),
 			BPF_ALU64_IMM(BPF_ADD, R0, -1),
 			BPF_ALU64_IMM(BPF_MOV, R2, 2),
@@ -1315,7 +1315,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"INT: DIV + ABS",
-		.insns_int = {
+		.u.insns_int = {
 			BPF_ALU64_REG(BPF_MOV, R6, R1),
 			BPF_LD_ABS(BPF_B, 3),
 			BPF_ALU64_IMM(BPF_MOV, R2, 2),
@@ -1332,7 +1332,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"INT: DIV by zero",
-		.insns_int = {
+		.u.insns_int = {
 			BPF_ALU64_REG(BPF_MOV, R6, R1),
 			BPF_ALU64_IMM(BPF_MOV, R7, 0),
 			BPF_LD_ABS(BPF_B, 3),
@@ -1345,7 +1345,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"check: missing ret",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_IMM, 1),
 		},
 		EXPECTED_FAIL,
@@ -1354,7 +1354,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"check: div_k_0",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_ALU | BPF_DIV | BPF_K, 0),
 			BPF_STMT(BPF_RET | BPF_K, 0)
 		},
@@ -1364,7 +1364,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"check: unknown insn",
-		.insns = {
+		.u.insns = {
 			/* seccomp insn, rejected in socket filter */
 			BPF_STMT(BPF_LDX | BPF_W | BPF_ABS, 0),
 			BPF_STMT(BPF_RET | BPF_K, 0)
@@ -1375,7 +1375,7 @@ static struct bpf_test tests[] = {
 	},
 	{
 		"check: out of range spill/fill",
-		.insns = {
+		.u.insns = {
 			BPF_STMT(BPF_STX, 16),
 			BPF_STMT(BPF_RET | BPF_K, 0)
 		},
@@ -1478,7 +1478,7 @@ static __init int test_bpf(void)
 	for (i = 0; i < ARRAY_SIZE(tests); i++) {
 		pr_info("#%d %s ", i, tests[i].descr);
 
-		fprog.filter = tests[i].insns;
+		fprog.filter = tests[i].u.insns;
 		fprog.len = get_length(fprog.filter);
 
 		if (tests[i].data_type == SKB_INT) {
@@ -1486,7 +1486,7 @@ static __init int test_bpf(void)
 			if (!fp_ext)
 				return -ENOMEM;
 			fp = fp_ext;
-			memcpy(fp_ext->insns, tests[i].insns_int,
+			memcpy(fp_ext->insns, tests[i].u.insns_int,
 			       fprog.len * 8);
 			fp->len = fprog.len;
 			fp->bpf_func = sk_run_filter_int_skb;
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index 1706cbbdf5f0..382f8ece1cb2 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -234,11 +234,46 @@ static ssize_t stable_pages_required_show(struct device *dev,
 }
 static DEVICE_ATTR_RO(stable_pages_required);
 
+static ssize_t strictlimit_store(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct backing_dev_info *bdi = dev_get_drvdata(dev);
+	unsigned int val;
+	ssize_t ret;
+
+	ret = kstrtouint(buf, 10, &val);
+	if (ret < 0)
+		return ret;
+
+	switch (val) {
+	case 0:
+		bdi->capabilities &= ~BDI_CAP_STRICTLIMIT;
+		break;
+	case 1:
+		bdi->capabilities |= BDI_CAP_STRICTLIMIT;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return count;
+}
+static ssize_t strictlimit_show(struct device *dev,
+		struct device_attribute *attr, char *page)
+{
+	struct backing_dev_info *bdi = dev_get_drvdata(dev);
+
+	return snprintf(page, PAGE_SIZE-1, "%d\n",
+			!!(bdi->capabilities & BDI_CAP_STRICTLIMIT));
+}
+static DEVICE_ATTR_RW(strictlimit);
+
 static struct attribute *bdi_dev_attrs[] = {
 	&dev_attr_read_ahead_kb.attr,
 	&dev_attr_min_ratio.attr,
 	&dev_attr_max_ratio.attr,
 	&dev_attr_stable_pages_required.attr,
+	&dev_attr_strictlimit.attr,
 	NULL,
 };
 ATTRIBUTE_GROUPS(bdi_dev);
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 537d91cd3d28..ba037e32b8f3 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -1682,7 +1682,7 @@ void throttle_vm_writeout(gfp_t gfp_mask)
 /*
  * sysctl handler for /proc/sys/vm/dirty_writeback_centisecs
  */
-int dirty_writeback_centisecs_handler(ctl_table *table, int write,
+int dirty_writeback_centisecs_handler(struct ctl_table *table, int write,
 	void __user *buffer, size_t *length, loff_t *ppos)
 {
 	proc_dointvec(table, write, buffer, length, ppos);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 068922845917..486460ca04ee 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3402,7 +3402,7 @@ early_param("numa_zonelist_order", setup_numa_zonelist_order);
 /*
  * sysctl handler for numa_zonelist_order
  */
-int numa_zonelist_order_handler(ctl_table *table, int write,
+int numa_zonelist_order_handler(struct ctl_table *table, int write,
 		void __user *buffer, size_t *length,
 		loff_t *ppos)
 {
@@ -5823,7 +5823,7 @@ module_init(init_per_zone_wmark_min)
  *	that we can call two helper functions whenever min_free_kbytes
  *	changes.
  */
-int min_free_kbytes_sysctl_handler(ctl_table *table, int write,
+int min_free_kbytes_sysctl_handler(struct ctl_table *table, int write,
 	void __user *buffer, size_t *length, loff_t *ppos)
 {
 	int rc;
@@ -5840,7 +5840,7 @@ int min_free_kbytes_sysctl_handler(ctl_table *table, int write,
 }
 
 #ifdef CONFIG_NUMA
-int sysctl_min_unmapped_ratio_sysctl_handler(ctl_table *table, int write,
+int sysctl_min_unmapped_ratio_sysctl_handler(struct ctl_table *table, int write,
 	void __user *buffer, size_t *length, loff_t *ppos)
 {
 	struct zone *zone;
@@ -5856,7 +5856,7 @@ int sysctl_min_unmapped_ratio_sysctl_handler(ctl_table *table, int write,
 	return 0;
 }
 
-int sysctl_min_slab_ratio_sysctl_handler(ctl_table *table, int write,
+int sysctl_min_slab_ratio_sysctl_handler(struct ctl_table *table, int write,
 	void __user *buffer, size_t *length, loff_t *ppos)
 {
 	struct zone *zone;
@@ -5882,7 +5882,7 @@ int sysctl_min_slab_ratio_sysctl_handler(ctl_table *table, int write,
  * minimum watermarks. The lowmem reserve ratio can only make sense
  * if in function of the boot time zone sizes.
  */
-int lowmem_reserve_ratio_sysctl_handler(ctl_table *table, int write,
+int lowmem_reserve_ratio_sysctl_handler(struct ctl_table *table, int write,
 	void __user *buffer, size_t *length, loff_t *ppos)
 {
 	proc_dointvec_minmax(table, write, buffer, length, ppos);
@@ -5895,7 +5895,7 @@ int lowmem_reserve_ratio_sysctl_handler(ctl_table *table, int write,
  * cpu.  It is the fraction of total pages in each zone that a hot per cpu
  * pagelist can have before it gets flushed back to buddy allocator.
  */
-int percpu_pagelist_fraction_sysctl_handler(ctl_table *table, int write,
+int percpu_pagelist_fraction_sysctl_handler(struct ctl_table *table, int write,
 	void __user *buffer, size_t *length, loff_t *ppos)
 {
 	struct zone *zone;
diff --git a/mm/page_io.c b/mm/page_io.c
index 243a9b76e5ce..1ee120adbb45 100644
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -274,9 +274,11 @@ int __swap_writepage(struct page *page, struct writeback_control *wbc,
 			.count = PAGE_SIZE,
 			.iov_offset = 0,
 			.nr_segs = 1,
-			.bvec = &bv
 		};
 
+		/* Do this by hand because old gcc messes up the initializer */
+		from.bvec = &bv;
+
 		init_sync_kiocb(&kiocb, swap_file);
 		kiocb.ki_pos = page_file_offset(page);
 		kiocb.ki_nbytes = PAGE_SIZE;