27 files changed, 242 insertions, 190 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 16a5c5f..69f19f1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2813,38 +2813,19 @@ F:	Documentation/gpio.txt
 F:	drivers/gpio/
 F:	include/linux/gpio*
 
+GRE DEMULTIPLEXER DRIVER
+M:	Dmitry Kozlov <xeb@mail.ru>
+L:	netdev@vger.kernel.org
+S:	Maintained
+F:	net/ipv4/gre.c
+F:	include/net/gre.h
+
 GRETH 10/100/1G Ethernet MAC device driver
 M:	Kristoffer Glembo <kristoffer@gaisler.com>
 L:	netdev@vger.kernel.org
 S:	Maintained
 F:	drivers/net/greth*
 
-HARD DRIVE ACTIVE PROTECTION SYSTEM (HDAPS) DRIVER
-M:	Frank Seidel <frank@f-seidel.de>
-L:	platform-driver-x86@vger.kernel.org
-W:	http://www.kernel.org/pub/linux/kernel/people/fseidel/hdaps/
-S:	Maintained
-F:	drivers/platform/x86/hdaps.c
-
-HWPOISON MEMORY FAILURE HANDLING
-M:	Andi Kleen <andi@firstfloor.org>
-L:	linux-mm@kvack.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6.git hwpoison
-S:	Maintained
-F:	mm/memory-failure.c
-F:	mm/hwpoison-inject.c
-
-HYPERVISOR VIRTUAL CONSOLE DRIVER
-L:	linuxppc-dev@lists.ozlabs.org
-S:	Odd Fixes
-F:	drivers/tty/hvc/
-
-iSCSI BOOT FIRMWARE TABLE (iBFT) DRIVER
-M:	Peter Jones <pjones@redhat.com>
-M:	Konrad Rzeszutek Wilk <konrad@kernel.org>
-S:	Maintained
-F:	drivers/firmware/iscsi_ibft*
-
 GSPCA FINEPIX SUBDRIVER
 M:	Frank Zago <frank@zago.net>
 L:	linux-media@vger.kernel.org
@@ -2895,6 +2876,26 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 S:	Maintained
 F:	drivers/media/video/gspca/
 
+HARD DRIVE ACTIVE PROTECTION SYSTEM (HDAPS) DRIVER
+M:	Frank Seidel <frank@f-seidel.de>
+L:	platform-driver-x86@vger.kernel.org
+W:	http://www.kernel.org/pub/linux/kernel/people/fseidel/hdaps/
+S:	Maintained
+F:	drivers/platform/x86/hdaps.c
+
+HWPOISON MEMORY FAILURE HANDLING
+M:	Andi Kleen <andi@firstfloor.org>
+L:	linux-mm@kvack.org
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6.git hwpoison
+S:	Maintained
+F:	mm/memory-failure.c
+F:	mm/hwpoison-inject.c
+
+HYPERVISOR VIRTUAL CONSOLE DRIVER
+L:	linuxppc-dev@lists.ozlabs.org
+S:	Odd Fixes
+F:	drivers/tty/hvc/
+
 HARDWARE MONITORING
 M:	Jean Delvare <khali@linux-fr.org>
 M:	Guenter Roeck <guenter.roeck@ericsson.com>
@@ -3478,6 +3479,12 @@ F:	Documentation/isapnp.txt
 F:	drivers/pnp/isapnp/
 F:	include/linux/isapnp.h
 
+iSCSI BOOT FIRMWARE TABLE (iBFT) DRIVER
+M:	Peter Jones <pjones@redhat.com>
+M:	Konrad Rzeszutek Wilk <konrad@kernel.org>
+S:	Maintained
+F:	drivers/firmware/iscsi_ibft*
+
 ISCSI
 M:	Mike Christie <michaelc@cs.wisc.edu>
 L:	open-iscsi@googlegroups.com
@@ -4989,6 +4996,13 @@ F:	Documentation/pps/
 F:	drivers/pps/
 F:	include/linux/pps*.h
 
+PPTP DRIVER
+M:	Dmitry Kozlov <xeb@mail.ru>
+L:	netdev@vger.kernel.org
+S:	Maintained
+F:	drivers/net/pptp.c
+W:	http://sourceforge.net/projects/accel-pptp
+
 PREEMPTIBLE KERNEL
 M:	Robert Love <rml@tech9.net>
 L:	kpreempt-tech@lists.sourceforge.net
@@ -7024,20 +7038,6 @@ M:	"Maciej W. Rozycki" <macro@linux-mips.org>
 S:	Maintained
 F:	drivers/tty/serial/zs.*
 
-GRE DEMULTIPLEXER DRIVER
-M:	Dmitry Kozlov <xeb@mail.ru>
-L:	netdev@vger.kernel.org
-S:	Maintained
-F:	net/ipv4/gre.c
-F:	include/net/gre.h
-
-PPTP DRIVER
-M:	Dmitry Kozlov <xeb@mail.ru>
-L:	netdev@vger.kernel.org
-S:	Maintained
-F:	drivers/net/pptp.c
-W:	http://sourceforge.net/projects/accel-pptp
-
 THE REST
 M:	Linus Torvalds <torvalds@linux-foundation.org>
 L:	linux-kernel@vger.kernel.org
diff --git a/arch/s390/include/asm/diag.h b/arch/s390/include/asm/diag.h
index 72b2e2f..7e91c58 100644
--- a/arch/s390/include/asm/diag.h
+++ b/arch/s390/include/asm/diag.h
@@ -9,9 +9,22 @@
 #define _ASM_S390_DIAG_H
 
 /*
- * Diagnose 10: Release pages
+ * Diagnose 10: Release page range
  */
-extern void diag10(unsigned long addr);
+static inline void diag10_range(unsigned long start_pfn, unsigned long num_pfn)
+{
+	unsigned long start_addr, end_addr;
+
+	start_addr = start_pfn << PAGE_SHIFT;
+	end_addr = (start_pfn + num_pfn - 1) << PAGE_SHIFT;
+
+	asm volatile(
+		"0:	diag	%0,%1,0x10\n"
+		"1:\n"
+		EX_TABLE(0b, 1b)
+		EX_TABLE(1b, 1b)
+		: : "a" (start_addr), "a" (end_addr));
+}
 
 /*
  * Diagnose 14: Input spool file manipulation
diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h
index a6f0e7c..8c277ca 100644
--- a/arch/s390/include/asm/mmu_context.h
+++ b/arch/s390/include/asm/mmu_context.h
@@ -23,7 +23,7 @@ static inline int init_new_context(struct task_struct *tsk,
 #ifdef CONFIG_64BIT
 	mm->context.asce_bits |= _ASCE_TYPE_REGION3;
 #endif
-	if (current->mm->context.alloc_pgste) {
+	if (current->mm && current->mm->context.alloc_pgste) {
 		/*
 		 * alloc_pgste indicates, that any NEW context will be created
 		 * with extended page tables. The old context is unchanged. The
diff --git a/arch/s390/kernel/diag.c b/arch/s390/kernel/diag.c
index c032d11..8237fc0 100644
--- a/arch/s390/kernel/diag.c
+++ b/arch/s390/kernel/diag.c
@@ -9,27 +9,6 @@
 #include <asm/diag.h>
 
 /*
- * Diagnose 10: Release pages
- */
-void diag10(unsigned long addr)
-{
-	if (addr >= 0x7ff00000)
-		return;
-	asm volatile(
-#ifdef CONFIG_64BIT
-		"	sam31\n"
-		"	diag	%0,%0,0x10\n"
-		"0:	sam64\n"
-#else
-		"	diag	%0,%0,0x10\n"
-		"0:\n"
-#endif
-		EX_TABLE(0b, 0b)
-		: : "a" (addr));
-}
-EXPORT_SYMBOL(diag10);
-
-/*
  * Diagnose 14: Input spool file manipulation
  */
 int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode)
diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c
index c83726c..3d4a78f 100644
--- a/arch/s390/kernel/dis.c
+++ b/arch/s390/kernel/dis.c
@@ -672,6 +672,7 @@ static struct insn opcode_b2[] = {
 	{ "rp", 0x77, INSTR_S_RD },
 	{ "stcke", 0x78, INSTR_S_RD },
 	{ "sacf", 0x79, INSTR_S_RD },
+	{ "spp", 0x80, INSTR_S_RD },
 	{ "stsi", 0x7d, INSTR_S_RD },
 	{ "srnm", 0x99, INSTR_S_RD },
 	{ "stfpc", 0x9c, INSTR_S_RD },
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 648f642..1b67fc6 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -836,7 +836,7 @@ restart_base:
 	stosm	__SF_EMPTY(%r15),0x04	# now we can turn dat on
 	basr	%r14,0
 	l	%r14,restart_addr-.(%r14)
-	br	%r14			# branch to start_secondary
+	basr	%r14,%r14		# branch to start_secondary
 restart_addr:
 	.long	start_secondary
 	.align	8
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index 9d3603d..9fd8645 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -841,7 +841,7 @@ restart_base:
 	mvc	__LC_SYSTEM_TIMER(8),__TI_system_timer(%r1)
 	xc	__LC_STEAL_TIMER(8),__LC_STEAL_TIMER
 	stosm	__SF_EMPTY(%r15),0x04	# now we can turn dat on
-	jg	start_secondary
+	brasl	%r14,start_secondary
 	.align	8
 restart_vtime:
 	.long	0x7fffffff,0xffffffff
diff --git a/arch/s390/mm/cmm.c b/arch/s390/mm/cmm.c
index c66ffd8..1f1dba9 100644
--- a/arch/s390/mm/cmm.c
+++ b/arch/s390/mm/cmm.c
@@ -91,7 +91,7 @@ static long cmm_alloc_pages(long nr, long *counter,
 			} else
 				free_page((unsigned long) npa);
 		}
-		diag10(addr);
+		diag10_range(addr >> PAGE_SHIFT, 1);
 		pa->pages[pa->index++] = addr;
 		(*counter)++;
 		spin_unlock(&cmm_lock);
diff --git a/arch/s390/oprofile/hwsampler.c b/arch/s390/oprofile/hwsampler.c
index 4952872..33cbd37 100644
--- a/arch/s390/oprofile/hwsampler.c
+++ b/arch/s390/oprofile/hwsampler.c
@@ -1021,20 +1021,14 @@ deallocate_exit:
 	return rc;
 }
 
-long hwsampler_query_min_interval(void)
+unsigned long hwsampler_query_min_interval(void)
 {
-	if (min_sampler_rate)
-		return min_sampler_rate;
-	else
-		return -EINVAL;
+	return min_sampler_rate;
 }
 
-long hwsampler_query_max_interval(void)
+unsigned long hwsampler_query_max_interval(void)
 {
-	if (max_sampler_rate)
-		return max_sampler_rate;
-	else
-		return -EINVAL;
+	return max_sampler_rate;
 }
 
 unsigned long hwsampler_get_sample_overflow_count(unsigned int cpu)
diff --git a/arch/s390/oprofile/hwsampler.h b/arch/s390/oprofile/hwsampler.h
index 8c72b59..1912f3b 100644
--- a/arch/s390/oprofile/hwsampler.h
+++ b/arch/s390/oprofile/hwsampler.h
@@ -102,8 +102,8 @@ int hwsampler_setup(void);
 int hwsampler_shutdown(void);
 int hwsampler_allocate(unsigned long sdbt, unsigned long sdb);
 int hwsampler_deallocate(void);
-long hwsampler_query_min_interval(void);
-long hwsampler_query_max_interval(void);
+unsigned long hwsampler_query_min_interval(void);
+unsigned long hwsampler_query_max_interval(void);
 int hwsampler_start_all(unsigned long interval);
 int hwsampler_stop_all(void);
 int hwsampler_deactivate(unsigned int cpu);
diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c
index c63d7e5..5995e9b 100644
--- a/arch/s390/oprofile/init.c
+++ b/arch/s390/oprofile/init.c
@@ -145,15 +145,11 @@ static int oprofile_hwsampler_init(struct oprofile_operations *ops)
 	 * create hwsampler files only if hwsampler_setup() succeeds.
 	 */
 	oprofile_min_interval = hwsampler_query_min_interval();
-	if (oprofile_min_interval < 0) {
-		oprofile_min_interval = 0;
+	if (oprofile_min_interval == 0)
 		return -ENODEV;
-	}
 	oprofile_max_interval = hwsampler_query_max_interval();
-	if (oprofile_max_interval < 0) {
-		oprofile_max_interval = 0;
+	if (oprofile_max_interval == 0)
 		return -ENODEV;
-	}
 
 	if (oprofile_timer_init(ops))
 		return -ENODEV;
diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c
index d4a851c..0b4d5b2 100644
--- a/drivers/mfd/asic3.c
+++ b/drivers/mfd/asic3.c
@@ -144,7 +144,7 @@ static void asic3_irq_demux(unsigned int irq, struct irq_desc *desc)
 	int iter, i;
 	unsigned long flags;
 
-	data->chip->irq_ack(irq_data);
+	data->chip->irq_ack(data);
 
 	for (iter = 0 ; iter < MAX_ASIC_ISR_LOOPS; iter++) {
 		u32 status;
diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index 2e16511..3ab9ffa 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c
@@ -717,14 +717,14 @@ static int usbhs_enable(struct device *dev)
 			gpio_request(pdata->ehci_data->reset_gpio_port[0],
 						"USB1 PHY reset");
 			gpio_direction_output
-				(pdata->ehci_data->reset_gpio_port[0], 1);
+				(pdata->ehci_data->reset_gpio_port[0], 0);
 		}
 
 		if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1])) {
 			gpio_request(pdata->ehci_data->reset_gpio_port[1],
 						"USB2 PHY reset");
 			gpio_direction_output
-				(pdata->ehci_data->reset_gpio_port[1], 1);
+				(pdata->ehci_data->reset_gpio_port[1], 0);
 		}
 
 		/* Hold the PHY in RESET for enough time till DIR is high */
@@ -904,11 +904,11 @@ static int usbhs_enable(struct device *dev)
 
 		if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0]))
 			gpio_set_value
-				(pdata->ehci_data->reset_gpio_port[0], 0);
+				(pdata->ehci_data->reset_gpio_port[0], 1);
 
 		if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1]))
 			gpio_set_value
-				(pdata->ehci_data->reset_gpio_port[1], 0);
+				(pdata->ehci_data->reset_gpio_port[1], 1);
 	}
 
 end_count:
diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.c
index 16422de0..2c0d4d1 100644
--- a/drivers/mfd/twl4030-power.c
+++ b/drivers/mfd/twl4030-power.c
@@ -447,12 +447,13 @@ static int __init load_twl4030_script(struct twl4030_script *tscript,
 		if (err)
 			goto out;
 	}
-	if (tscript->flags & TWL4030_SLEEP_SCRIPT)
+	if (tscript->flags & TWL4030_SLEEP_SCRIPT) {
 		if (order)
 			pr_warning("TWL4030: Bad order of scripts (sleep "\
 					"script before wakeup) Leads to boot"\
 					"failure on some boards\n");
 		err = twl4030_config_sleep_sequence(address);
+	}
 out:
 	return err;
 }
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index b3466c4..16512ec 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -46,6 +46,7 @@ static struct clk *rtc_clk;
 static void __iomem *s3c_rtc_base;
 static int s3c_rtc_alarmno = NO_IRQ;
 static int s3c_rtc_tickno  = NO_IRQ;
+static bool wake_en;
 static enum s3c_cpu_type s3c_rtc_cpu_type;
 
 static DEFINE_SPINLOCK(s3c_rtc_pie_lock);
@@ -562,8 +563,12 @@ static int s3c_rtc_suspend(struct platform_device *pdev, pm_message_t state)
 	}
 	s3c_rtc_enable(pdev, 0);
 
-	if (device_may_wakeup(&pdev->dev))
-		enable_irq_wake(s3c_rtc_alarmno);
+	if (device_may_wakeup(&pdev->dev) && !wake_en) {
+		if (enable_irq_wake(s3c_rtc_alarmno) == 0)
+			wake_en = true;
+		else
+			dev_err(&pdev->dev, "enable_irq_wake failed\n");
+	}
 
 	return 0;
 }
@@ -579,8 +584,10 @@ static int s3c_rtc_resume(struct platform_device *pdev)
 		writew(tmp | ticnt_en_save, s3c_rtc_base + S3C2410_RTCCON);
 	}
 
-	if (device_may_wakeup(&pdev->dev))
+	if (device_may_wakeup(&pdev->dev) && wake_en) {
 		disable_irq_wake(s3c_rtc_alarmno);
+		wake_en = false;
+	}
 
 	return 0;
 }
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 475e603..86b6f1c 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -1742,11 +1742,20 @@ int dasd_sleep_on_interruptible(struct dasd_ccw_req *cqr)
 static inline int _dasd_term_running_cqr(struct dasd_device *device)
 {
 	struct dasd_ccw_req *cqr;
+	int rc;
 
 	if (list_empty(&device->ccw_queue))
 		return 0;
 	cqr = list_entry(device->ccw_queue.next, struct dasd_ccw_req, devlist);
-	return device->discipline->term_IO(cqr);
+	rc = device->discipline->term_IO(cqr);
+	if (!rc)
+		/*
+		 * CQR terminated because a more important request is pending.
+		 * Undo decreasing of retry counter because this is
+		 * not an error case.
+		 */
+		cqr->retries++;
+	return rc;
 }
 
 int dasd_sleep_on_immediatly(struct dasd_ccw_req *cqr)
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index 4b60ede..be55fb2 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -518,6 +518,8 @@ static void __init insert_increment(u16 rn, int standby, int assigned)
 		return;
 	new_incr->rn = rn;
 	new_incr->standby = standby;
+	if (!standby)
+		new_incr->usecount = 1;
 	last_rn = 0;
 	prev = &sclp_mem_list;
 	list_for_each_entry(incr, &sclp_mem_list, list) {
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index b8613e8..01eca17 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -111,6 +111,8 @@ extern void *__alloc_bootmem_low_node(pg_data_t *pgdat,
 	__alloc_bootmem_nopanic(x, PAGE_SIZE, __pa(MAX_DMA_ADDRESS))
 #define alloc_bootmem_node(pgdat, x) \
 	__alloc_bootmem_node(pgdat, x, SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS))
+#define alloc_bootmem_node_nopanic(pgdat, x) \
+	__alloc_bootmem_node_nopanic(pgdat, x, SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS))
 #define alloc_bootmem_pages_node(pgdat, x) \
 	__alloc_bootmem_node(pgdat, x, PAGE_SIZE, __pa(MAX_DMA_ADDRESS))
 #define alloc_bootmem_pages_node_nopanic(pgdat, x) \
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index bfb8f93..56d8fc8 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -353,6 +353,8 @@ extern unsigned long get_zeroed_page(gfp_t gfp_mask);
 
 void *alloc_pages_exact(size_t size, gfp_t gfp_mask);
 void free_pages_exact(void *virt, size_t size);
+/* This is different from alloc_pages_exact_node !!! */
+void *alloc_pages_exact_nid(int nid, size_t size, gfp_t gfp_mask);
 
 #define __get_free_page(gfp_mask) \
 		__get_free_pages((gfp_mask), 0)
diff --git a/include/trace/events/gfpflags.h b/include/trace/events/gfpflags.h
index e3615c0..9fe3a36 100644
--- a/include/trace/events/gfpflags.h
+++ b/include/trace/events/gfpflags.h
@@ -10,6 +10,7 @@
  */
 #define show_gfp_flags(flags)						\
 	(flags) ? __print_flags(flags, "|",				\
+	{(unsigned long)GFP_TRANSHUGE,		"GFP_TRANSHUGE"},	\
 	{(unsigned long)GFP_HIGHUSER_MOVABLE,	"GFP_HIGHUSER_MOVABLE"}, \
 	{(unsigned long)GFP_HIGHUSER,		"GFP_HIGHUSER"},	\
 	{(unsigned long)GFP_USER,		"GFP_USER"},		\
@@ -32,6 +33,9 @@
 	{(unsigned long)__GFP_HARDWALL,		"GFP_HARDWALL"},	\
 	{(unsigned long)__GFP_THISNODE,		"GFP_THISNODE"},	\
 	{(unsigned long)__GFP_RECLAIMABLE,	"GFP_RECLAIMABLE"},	\
-	{(unsigned long)__GFP_MOVABLE,		"GFP_MOVABLE"}		\
+	{(unsigned long)__GFP_MOVABLE,		"GFP_MOVABLE"},		\
+	{(unsigned long)__GFP_NOTRACK,		"GFP_NOTRACK"},		\
+	{(unsigned long)__GFP_NO_KSWAPD,	"GFP_NO_KSWAPD"},	\
+	{(unsigned long)__GFP_OTHER_NODE,	"GFP_OTHER_NODE"}	\
 	) : "GFP_NOWAIT"
 
diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c
index 8935369..6275970 100644
--- a/kernel/power/suspend.c
+++ b/kernel/power/suspend.c
@@ -216,7 +216,6 @@ int suspend_devices_and_enter(suspend_state_t state)
 			goto Close;
 	}
 	suspend_console();
-	pm_restrict_gfp_mask();
 	suspend_test_start();
 	error = dpm_suspend_start(PMSG_SUSPEND);
 	if (error) {
@@ -233,7 +232,6 @@ int suspend_devices_and_enter(suspend_state_t state)
 	suspend_test_start();
 	dpm_resume_end(PMSG_RESUME);
 	suspend_test_finish("resume devices");
-	pm_restore_gfp_mask();
 	resume_console();
  Close:
 	if (suspend_ops->end)
@@ -294,7 +292,9 @@ int enter_state(suspend_state_t state)
 		goto Finish;
 
 	pr_debug("PM: Entering %s sleep\n", pm_states[state]);
+	pm_restrict_gfp_mask();
 	error = suspend_devices_and_enter(state);
+	pm_restore_gfp_mask();
 
  Finish:
 	pr_debug("PM: Finishing wakeup.\n");
diff --git a/kernel/power/user.c b/kernel/power/user.c
index c36c3b9..7d02d33 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -135,8 +135,10 @@ static int snapshot_release(struct inode *inode, struct file *filp)
 	free_basic_memory_bitmaps();
 	data = filp->private_data;
 	free_all_swap_pages(data->swap);
-	if (data->frozen)
+	if (data->frozen) {
+		pm_restore_gfp_mask();
 		thaw_processes();
+	}
 	pm_notifier_call_chain(data->mode == O_RDONLY ?
 			PM_POST_HIBERNATION : PM_POST_RESTORE);
 	atomic_inc(&snapshot_device_available);
@@ -379,6 +381,7 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd,
 		 * PM_HIBERNATION_PREPARE
 		 */
 		error = suspend_devices_and_enter(PM_SUSPEND_MEM);
+		data->ready = 0;
 		break;
 
 	case SNAPSHOT_PLATFORM_SUPPORT:
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 9f8a97b..570d944 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2317,6 +2317,21 @@ void free_pages(unsigned long addr, unsigned int order)
 
 EXPORT_SYMBOL(free_pages);
 
+static void *make_alloc_exact(unsigned long addr, unsigned order, size_t size)
+{
+	if (addr) {
+		unsigned long alloc_end = addr + (PAGE_SIZE << order);
+		unsigned long used = addr + PAGE_ALIGN(size);
+
+		split_page(virt_to_page((void *)addr), order);
+		while (used < alloc_end) {
+			free_page(used);
+			used += PAGE_SIZE;
+		}
+	}
+	return (void *)addr;
+}
+
 /**
  * alloc_pages_exact - allocate an exact number physically-contiguous pages.
  * @size: the number of bytes to allocate
@@ -2336,22 +2351,32 @@ void *alloc_pages_exact(size_t size, gfp_t gfp_mask)
 	unsigned long addr;
 
 	addr = __get_free_pages(gfp_mask, order);
-	if (addr) {
-		unsigned long alloc_end = addr + (PAGE_SIZE << order);
-		unsigned long used = addr + PAGE_ALIGN(size);
-
-		split_page(virt_to_page((void *)addr), order);
-		while (used < alloc_end) {
-			free_page(used);
-			used += PAGE_SIZE;
-		}
-	}
-
-	return (void *)addr;
+	return make_alloc_exact(addr, order, size);
 }
 EXPORT_SYMBOL(alloc_pages_exact);
 
 /**
+ * alloc_pages_exact_nid - allocate an exact number of physically-contiguous
+ *			   pages on a node.
+ * @size: the number of bytes to allocate
+ * @gfp_mask: GFP flags for the allocation
+ *
+ * Like alloc_pages_exact(), but try to allocate on node nid first before falling
+ * back.
+ * Note this is not alloc_pages_exact_node() which allocates on a specific node,
+ * but is not exact.
+ */
+void *alloc_pages_exact_nid(int nid, size_t size, gfp_t gfp_mask)
+{
+	unsigned order = get_order(size);
+	struct page *p = alloc_pages_node(nid, gfp_mask, order);
+	if (!p)
+		return NULL;
+	return make_alloc_exact((unsigned long)page_address(p), order, size);
+}
+EXPORT_SYMBOL(alloc_pages_exact_nid);
+
+/**
  * free_pages_exact - release memory allocated via alloc_pages_exact()
  * @virt: the value returned by alloc_pages_exact.
  * @size: size of allocation, same value as passed to alloc_pages_exact().
@@ -3564,7 +3589,7 @@ int zone_wait_table_init(struct zone *zone, unsigned long zone_size_pages)
 
 	if (!slab_is_available()) {
 		zone->wait_table = (wait_queue_head_t *)
-			alloc_bootmem_node(pgdat, alloc_size);
+			alloc_bootmem_node_nopanic(pgdat, alloc_size);
 	} else {
 		/*
 		 * This case means that a zone whose size was 0 gets new memory
@@ -4141,7 +4166,8 @@ static void __init setup_usemap(struct pglist_data *pgdat,
 	unsigned long usemapsize = usemap_size(zonesize);
 	zone->pageblock_flags = NULL;
 	if (usemapsize)
-		zone->pageblock_flags = alloc_bootmem_node(pgdat, usemapsize);
+		zone->pageblock_flags = alloc_bootmem_node_nopanic(pgdat,
+								   usemapsize);
 }
 #else
 static inline void setup_usemap(struct pglist_data *pgdat,
@@ -4307,7 +4333,7 @@ static void __init_refok alloc_node_mem_map(struct pglist_data *pgdat)
 		size =  (end - start) * sizeof(struct page);
 		map = alloc_remap(pgdat->node_id, size);
 		if (!map)
-			map = alloc_bootmem_node(pgdat, size);
+			map = alloc_bootmem_node_nopanic(pgdat, size);
 		pgdat->node_mem_map = map + (pgdat->node_start_pfn - start);
 	}
 #ifndef CONFIG_NEED_MULTIPLE_NODES
diff --git a/mm/page_cgroup.c b/mm/page_cgroup.c
index 9905501..2daadc3 100644
--- a/mm/page_cgroup.c
+++ b/mm/page_cgroup.c
@@ -134,7 +134,7 @@ static void *__init_refok alloc_page_cgroup(size_t size, int nid)
 {
 	void *addr = NULL;
 
-	addr = alloc_pages_exact(size, GFP_KERNEL | __GFP_NOWARN);
+	addr = alloc_pages_exact_nid(nid, size, GFP_KERNEL | __GFP_NOWARN);
 	if (addr)
 		return addr;
 
diff --git a/mm/shmem.c b/mm/shmem.c
index 8fa27e4..9e755c1 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -852,7 +852,7 @@ static inline int shmem_find_swp(swp_entry_t entry, swp_entry_t *dir, swp_entry_
 
 static int shmem_unuse_inode(struct shmem_inode_info *info, swp_entry_t entry, struct page *page)
 {
-	struct inode *inode;
+	struct address_space *mapping;
 	unsigned long idx;
 	unsigned long size;
 	unsigned long limit;
@@ -875,8 +875,10 @@ static int shmem_unuse_inode(struct shmem_inode_info *info, swp_entry_t entry, s
 	if (size > SHMEM_NR_DIRECT)
 		size = SHMEM_NR_DIRECT;
 	offset = shmem_find_swp(entry, ptr, ptr+size);
-	if (offset >= 0)
+	if (offset >= 0) {
+		shmem_swp_balance_unmap();
 		goto found;
+	}
 	if (!info->i_indirect)
 		goto lost2;
 
@@ -914,11 +916,11 @@ static int shmem_unuse_inode(struct shmem_inode_info *info, swp_entry_t entry, s
 			if (size > ENTRIES_PER_PAGE)
 				size = ENTRIES_PER_PAGE;
 			offset = shmem_find_swp(entry, ptr, ptr+size);
-			shmem_swp_unmap(ptr);
 			if (offset >= 0) {
 				shmem_dir_unmap(dir);
 				goto found;
 			}
+			shmem_swp_unmap(ptr);
 		}
 	}
 lost1:
@@ -928,8 +930,7 @@ lost2:
 	return 0;
 found:
 	idx += offset;
-	inode = igrab(&info->vfs_inode);
-	spin_unlock(&info->lock);
+	ptr += offset;
 
 	/*
 	 * Move _head_ to start search for next from here.
@@ -940,37 +941,18 @@ found:
 	 */
 	if (shmem_swaplist.next != &info->swaplist)
 		list_move_tail(&shmem_swaplist, &info->swaplist);
-	mutex_unlock(&shmem_swaplist_mutex);
 
-	error = 1;
-	if (!inode)
-		goto out;
 	/*
-	 * Charge page using GFP_KERNEL while we can wait.
-	 * Charged back to the user(not to caller) when swap account is used.
-	 * add_to_page_cache() will be called with GFP_NOWAIT.
+	 * We rely on shmem_swaplist_mutex, not only to protect the swaplist,
+	 * but also to hold up shmem_evict_inode(): so inode cannot be freed
+	 * beneath us (pagelock doesn't help until the page is in pagecache).
 	 */
-	error = mem_cgroup_cache_charge(page, current->mm, GFP_KERNEL);
-	if (error)
-		goto out;
-	error = radix_tree_preload(GFP_KERNEL);
-	if (error) {
-		mem_cgroup_uncharge_cache_page(page);
-		goto out;
-	}
-	error = 1;
-
-	spin_lock(&info->lock);
-	ptr = shmem_swp_entry(info, idx, NULL);
-	if (ptr && ptr->val == entry.val) {
-		error = add_to_page_cache_locked(page, inode->i_mapping,
-						idx, GFP_NOWAIT);
-		/* does mem_cgroup_uncharge_cache_page on error */
-	} else	/* we must compensate for our precharge above */
-		mem_cgroup_uncharge_cache_page(page);
+	mapping = info->vfs_inode.i_mapping;
+	error = add_to_page_cache_locked(page, mapping, idx, GFP_NOWAIT);
+	/* which does mem_cgroup_uncharge_cache_page on error */
 
 	if (error == -EEXIST) {
-		struct page *filepage = find_get_page(inode->i_mapping, idx);
+		struct page *filepage = find_get_page(mapping, idx);
 		error = 1;
 		if (filepage) {
 			/*
@@ -990,14 +972,8 @@ found:
 		swap_free(entry);
 		error = 1;	/* not an error, but entry was found */
 	}
-	if (ptr)
-		shmem_swp_unmap(ptr);
+	shmem_swp_unmap(ptr);
 	spin_unlock(&info->lock);
-	radix_tree_preload_end();
-out:
-	unlock_page(page);
-	page_cache_release(page);
-	iput(inode);		/* allows for NULL */
 	return error;
 }
 
@@ -1009,6 +985,26 @@ int shmem_unuse(swp_entry_t entry, struct page *page)
 	struct list_head *p, *next;
 	struct shmem_inode_info *info;
 	int found = 0;
+	int error;
+
+	/*
+	 * Charge page using GFP_KERNEL while we can wait, before taking
+	 * the shmem_swaplist_mutex which might hold up shmem_writepage().
+	 * Charged back to the user (not to caller) when swap account is used.
+	 * add_to_page_cache() will be called with GFP_NOWAIT.
+	 */
+	error = mem_cgroup_cache_charge(page, current->mm, GFP_KERNEL);
+	if (error)
+		goto out;
+	/*
+	 * Try to preload while we can wait, to not make a habit of
+	 * draining atomic reserves; but don't latch on to this cpu,
+	 * it's okay if sometimes we get rescheduled after this.
+	 */
+	error = radix_tree_preload(GFP_KERNEL);
+	if (error)
+		goto uncharge;
+	radix_tree_preload_end();
 
 	mutex_lock(&shmem_swaplist_mutex);
 	list_for_each_safe(p, next, &shmem_swaplist) {
@@ -1016,17 +1012,19 @@ int shmem_unuse(swp_entry_t entry, struct page *page)
 		found = shmem_unuse_inode(info, entry, page);
 		cond_resched();
 		if (found)
-			goto out;
+			break;
 	}
 	mutex_unlock(&shmem_swaplist_mutex);
-	/*
-	 * Can some race bring us here?  We've been holding page lock,
-	 * so I think not; but would rather try again later than BUG()
-	 */
+
+uncharge:
+	if (!found)
+		mem_cgroup_uncharge_cache_page(page);
+	if (found < 0)
+		error = found;
+out:
 	unlock_page(page);
 	page_cache_release(page);
-out:
-	return (found < 0) ? found : 0;
+	return error;
 }
 
 /*
@@ -1039,6 +1037,7 @@ static int shmem_writepage(struct page *page, struct writeback_control *wbc)
 	struct address_space *mapping;
 	unsigned long index;
 	struct inode *inode;
+	bool unlock_mutex = false;
 
 	BUG_ON(!PageLocked(page));
 	mapping = page->mapping;
@@ -1064,7 +1063,26 @@ static int shmem_writepage(struct page *page, struct writeback_control *wbc)
 	else
 		swap.val = 0;
 
+	/*
+	 * Add inode to shmem_unuse()'s list of swapped-out inodes,
+	 * if it's not already there.  Do it now because we cannot take
+	 * mutex while holding spinlock, and must do so before the page
+	 * is moved to swap cache, when its pagelock no longer protects
+	 * the inode from eviction.  But don't unlock the mutex until
+	 * we've taken the spinlock, because shmem_unuse_inode() will
+	 * prune a !swapped inode from the swaplist under both locks.
+	 */
+	if (swap.val && list_empty(&info->swaplist)) {
+		mutex_lock(&shmem_swaplist_mutex);
+		/* move instead of add in case we're racing */
+		list_move_tail(&info->swaplist, &shmem_swaplist);
+		unlock_mutex = true;
+	}
+
 	spin_lock(&info->lock);
+	if (unlock_mutex)
+		mutex_unlock(&shmem_swaplist_mutex);
+
 	if (index >= info->next_index) {
 		BUG_ON(!(info->flags & SHMEM_TRUNCATE));
 		goto unlock;
@@ -1084,21 +1102,10 @@ static int shmem_writepage(struct page *page, struct writeback_control *wbc)
 		delete_from_page_cache(page);
 		shmem_swp_set(info, entry, swap.val);
 		shmem_swp_unmap(entry);
-		if (list_empty(&info->swaplist))
-			inode = igrab(inode);
-		else
-			inode = NULL;
 		spin_unlock(&info->lock);
 		swap_shmem_alloc(swap);
 		BUG_ON(page_mapped(page));
 		swap_writepage(page, wbc);
-		if (inode) {
-			mutex_lock(&shmem_swaplist_mutex);
-			/* move instead of add in case we're racing */
-			list_move_tail(&info->swaplist, &shmem_swaplist);
-			mutex_unlock(&shmem_swaplist_mutex);
-			iput(inode);
-		}
 		return 0;
 	}
 
@@ -1400,20 +1407,14 @@ repeat:
 		if (sbinfo->max_blocks) {
 			if (percpu_counter_compare(&sbinfo->used_blocks,
 						sbinfo->max_blocks) >= 0 ||
-			    shmem_acct_block(info->flags)) {
-				spin_unlock(&info->lock);
-				error = -ENOSPC;
-				goto failed;
-			}
+			    shmem_acct_block(info->flags))
+				goto nospace;
 			percpu_counter_inc(&sbinfo->used_blocks);
 			spin_lock(&inode->i_lock);
 			inode->i_blocks += BLOCKS_PER_PAGE;
 			spin_unlock(&inode->i_lock);
-		} else if (shmem_acct_block(info->flags)) {
-			spin_unlock(&info->lock);
-			error = -ENOSPC;
-			goto failed;
-		}
+		} else if (shmem_acct_block(info->flags))
+			goto nospace;
 
 		if (!filepage) {
 			int ret;
@@ -1493,6 +1494,24 @@ done:
 	error = 0;
 	goto out;
 
+nospace:
+	/*
+	 * Perhaps the page was brought in from swap between find_lock_page
+	 * and taking info->lock?  We allow for that at add_to_page_cache_lru,
+	 * but must also avoid reporting a spurious ENOSPC while working on a
+	 * full tmpfs.  (When filepage has been passed in to shmem_getpage, it
+	 * is already in page cache, which prevents this race from occurring.)
+	 */
+	if (!filepage) {
+		struct page *page = find_get_page(mapping, idx);
+		if (page) {
+			spin_unlock(&info->lock);
+			page_cache_release(page);
+			goto repeat;
+		}
+	}
+	spin_unlock(&info->lock);
+	error = -ENOSPC;
 failed:
 	if (*pagep != filepage) {
 		unlock_page(filepage);
diff --git a/mm/swap.c b/mm/swap.c
index a448db3..5602f1a 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -396,6 +396,9 @@ static void lru_deactivate_fn(struct page *page, void *arg)
 	if (!PageLRU(page))
 		return;
 
+	if (PageUnevictable(page))
+		return;
+
 	/* Some processes are using the page */
 	if (page_mapped(page))
 		return;
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 94954c7..42fdffd 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -369,15 +369,6 @@ static void __sco_sock_close(struct sock *sk)
 
 	case BT_CONNECTED:
 	case BT_CONFIG:
-		if (sco_pi(sk)->conn) {
-			sk->sk_state = BT_DISCONN;
-			sco_sock_set_timer(sk, SCO_DISCONN_TIMEOUT);
-			hci_conn_put(sco_pi(sk)->conn->hcon);
-			sco_pi(sk)->conn = NULL;
-		} else
-			sco_chan_del(sk, ECONNRESET);
-		break;
-
 	case BT_CONNECT:
 	case BT_DISCONN:
 		sco_chan_del(sk, ECONNRESET);