Date:	Sun, 17 May 2015 11:39:45 -0700
From:	Greg KH <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	torvalds@...ux-foundation.org, stable@...r.kernel.org
Cc:	lwn@....net, Jiri Slaby <jslaby@...e.cz>
Subject: Re: Linux 3.10.79

diff --git a/Documentation/devicetree/bindings/dma/fsl-mxs-dma.txt b/Documentation/devicetree/bindings/dma/fsl-mxs-dma.txt
index a4873e5e3e36..e30e184f50c7 100644
--- a/Documentation/devicetree/bindings/dma/fsl-mxs-dma.txt
+++ b/Documentation/devicetree/bindings/dma/fsl-mxs-dma.txt
@@ -38,7 +38,7 @@ dma_apbx: dma-apbx@...24000 {
 		      80 81 68 69
 		      70 71 72 73
 		      74 75 76 77>;
-	interrupt-names = "auart4-rx", "aurat4-tx", "spdif-tx", "empty",
+	interrupt-names = "auart4-rx", "auart4-tx", "spdif-tx", "empty",
 			  "saif0", "saif1", "i2c0", "i2c1",
 			  "auart0-rx", "auart0-tx", "auart1-rx", "auart1-tx",
 			  "auart2-rx", "auart2-tx", "auart3-rx", "auart3-tx";
diff --git a/Makefile b/Makefile
index cf99a9b53c6f..e26cb1e56266 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 VERSION = 3
 PATCHLEVEL = 10
-SUBLEVEL = 78
+SUBLEVEL = 79
 EXTRAVERSION =
 NAME = TOSSUG Baby Fish
 
diff --git a/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts b/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts
index 9746d0e7fcb4..5dfb3d354470 100644
--- a/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts
+++ b/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts
@@ -32,6 +32,10 @@
 			  0xf0000000 0 0xf0000000 0x8000000     /* Device Bus, NOR 128MiB   */>;
 
 		internal-regs {
+			rtc@...00 {
+				/* No crystal connected to the internal RTC */
+				status = "disabled";
+			};
 			serial@...00 {
 				clock-frequency = <250000000>;
 				status = "okay";
diff --git a/arch/arm/boot/dts/imx23-olinuxino.dts b/arch/arm/boot/dts/imx23-olinuxino.dts
index d107c4af321f..6fef54416cbf 100644
--- a/arch/arm/boot/dts/imx23-olinuxino.dts
+++ b/arch/arm/boot/dts/imx23-olinuxino.dts
@@ -89,6 +89,7 @@
 
 	ahb@...80000 {
 		usb0: usb@...80000 {
+			dr_mode = "host";
 			vbus-supply = <&reg_usb0_vbus>;
 			status = "okay";
 		};
diff --git a/arch/arm/boot/dts/imx25.dtsi b/arch/arm/boot/dts/imx25.dtsi
index 97d1a550eb98..2a571bcacaf4 100644
--- a/arch/arm/boot/dts/imx25.dtsi
+++ b/arch/arm/boot/dts/imx25.dtsi
@@ -393,6 +393,7 @@
 
 			pwm4: pwm@...c8000 {
 				compatible = "fsl,imx25-pwm", "fsl,imx27-pwm";
+				#pwm-cells = <2>;
 				reg = <0x53fc8000 0x4000>;
 				clocks = <&clks 108>, <&clks 52>;
 				clock-names = "ipg", "per";
diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi
index 4c10a1968c0e..2e76b84c6bad 100644
--- a/arch/arm/boot/dts/imx28.dtsi
+++ b/arch/arm/boot/dts/imx28.dtsi
@@ -691,7 +691,7 @@
 					      80 81 68 69
 					      70 71 72 73
 					      74 75 76 77>;
-				interrupt-names = "auart4-rx", "aurat4-tx", "spdif-tx", "empty",
+				interrupt-names = "auart4-rx", "auart4-tx", "spdif-tx", "empty",
 						  "saif0", "saif1", "i2c0", "i2c1",
 						  "auart0-rx", "auart0-tx", "auart1-rx", "auart1-tx",
 						  "auart2-rx", "auart2-tx", "auart3-rx", "auart3-tx";
diff --git a/drivers/acpi/acpica/dsopcode.c b/drivers/acpi/acpica/dsopcode.c
index ee6367b8eaf7..e9b13b92ba1e 100644
--- a/drivers/acpi/acpica/dsopcode.c
+++ b/drivers/acpi/acpica/dsopcode.c
@@ -539,8 +539,7 @@ acpi_ds_eval_table_region_operands(struct acpi_walk_state *walk_state,
 		return_ACPI_STATUS(AE_NOT_EXIST);
 	}
 
-	obj_desc->region.address =
-	    (acpi_physical_address) ACPI_TO_INTEGER(table);
+	obj_desc->region.address = ACPI_PTR_TO_PHYSADDR(table);
 	obj_desc->region.length = table->length;
 
 	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n",
diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c
index e57cd38004e3..0d2351596a3c 100644
--- a/drivers/acpi/acpica/tbinstal.c
+++ b/drivers/acpi/acpica/tbinstal.c
@@ -301,8 +301,7 @@ struct acpi_table_header *acpi_tb_table_override(struct acpi_table_header
 			ACPI_EXCEPTION((AE_INFO, AE_NO_MEMORY,
 					"%4.4s %p Attempted physical table override failed",
 					table_header->signature,
-					ACPI_CAST_PTR(void,
-						      table_desc->address)));
+					ACPI_PHYSADDR_TO_PTR(table_desc->address)));
 			return (NULL);
 		}
 
@@ -318,7 +317,7 @@ struct acpi_table_header *acpi_tb_table_override(struct acpi_table_header
 	ACPI_INFO((AE_INFO,
 		   "%4.4s %p %s table override, new table: %p",
 		   table_header->signature,
-		   ACPI_CAST_PTR(void, table_desc->address),
+		   ACPI_PHYSADDR_TO_PTR(table_desc->address),
 		   override_type, new_table));
 
 	/* We can now unmap/delete the original table (if fully mapped) */
diff --git a/drivers/acpi/acpica/tbxfroot.c b/drivers/acpi/acpica/tbxfroot.c
index 7c2ecfb7c2c3..e12486031d97 100644
--- a/drivers/acpi/acpica/tbxfroot.c
+++ b/drivers/acpi/acpica/tbxfroot.c
@@ -118,7 +118,7 @@ static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp)
  *
  ******************************************************************************/
 
-acpi_status acpi_find_root_pointer(acpi_size *table_address)
+acpi_status acpi_find_root_pointer(acpi_physical_address * table_address)
 {
 	u8 *table_ptr;
 	u8 *mem_rover;
@@ -176,7 +176,8 @@ acpi_status acpi_find_root_pointer(acpi_size *table_address)
 			physical_address +=
 			    (u32) ACPI_PTR_DIFF(mem_rover, table_ptr);
 
-			*table_address = physical_address;
+			*table_address =
+			    (acpi_physical_address) physical_address;
 			return_ACPI_STATUS(AE_OK);
 		}
 	}
@@ -209,7 +210,7 @@ acpi_status acpi_find_root_pointer(acpi_size *table_address)
 		    (ACPI_HI_RSDP_WINDOW_BASE +
 		     ACPI_PTR_DIFF(mem_rover, table_ptr));
 
-		*table_address = physical_address;
+		*table_address = (acpi_physical_address) physical_address;
 		return_ACPI_STATUS(AE_OK);
 	}
 
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index ca1cb2d756c2..c3768fafff45 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -752,6 +752,7 @@ static struct class gpio_class = {
  */
 static int gpiod_export(struct gpio_desc *desc, bool direction_may_change)
 {
+	struct gpio_chip	*chip;
 	unsigned long		flags;
 	int			status;
 	const char		*ioname = NULL;
@@ -769,8 +770,16 @@ static int gpiod_export(struct gpio_desc *desc, bool direction_may_change)
 		return -EINVAL;
 	}
 
+	chip = desc->chip;
+
 	mutex_lock(&sysfs_lock);
 
+	/* check if chip is being removed */
+	if (!chip || !chip->exported) {
+		status = -ENODEV;
+		goto fail_unlock;
+	}
+
 	spin_lock_irqsave(&gpio_lock, flags);
 	if (!test_bit(FLAG_REQUESTED, &desc->flags) ||
 	     test_bit(FLAG_EXPORT, &desc->flags)) {
@@ -1040,6 +1049,8 @@ static void gpiochip_unexport(struct gpio_chip *chip)
 {
 	int			status;
 	struct device		*dev;
+	struct gpio_desc *desc;
+	unsigned int i;
 
 	mutex_lock(&sysfs_lock);
 	dev = class_find_device(&gpio_class, NULL, chip, match_export);
@@ -1047,6 +1058,7 @@ static void gpiochip_unexport(struct gpio_chip *chip)
 		sysfs_remove_group(&dev->kobj, &gpiochip_attr_group);
 		put_device(dev);
 		device_unregister(dev);
+		/* prevent further gpiod exports */
 		chip->exported = 0;
 		status = 0;
 	} else
@@ -1056,6 +1068,13 @@ static void gpiochip_unexport(struct gpio_chip *chip)
 	if (status)
 		pr_debug("%s: chip %s status %d\n", __func__,
 				chip->label, status);
+
+	/* unregister gpiod class devices owned by sysfs */
+	for (i = 0; i < chip->ngpio; i++) {
+		desc = &chip->desc[i];
+		if (test_and_clear_bit(FLAG_SYSFS, &desc->flags))
+			gpiod_free(desc);
+	}
 }
 
 static int __init gpiolib_sysfs_init(void)
@@ -1265,6 +1284,8 @@ int gpiochip_remove(struct gpio_chip *chip)
 	int		status = 0;
 	unsigned	id;
 
+	gpiochip_unexport(chip);
+
 	spin_lock_irqsave(&gpio_lock, flags);
 
 	gpiochip_remove_pin_ranges(chip);
@@ -1285,9 +1306,6 @@ int gpiochip_remove(struct gpio_chip *chip)
 
 	spin_unlock_irqrestore(&gpio_lock, flags);
 
-	if (status == 0)
-		gpiochip_unexport(chip);
-
 	return status;
 }
 EXPORT_SYMBOL_GPL(gpiochip_remove);
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index f5d1dc5b5563..54ebfbe370c6 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -1007,12 +1007,28 @@ static int intel_dual_link_lvds_callback(const struct dmi_system_id *id)
 static const struct dmi_system_id intel_dual_link_lvds[] = {
 	{
 		.callback = intel_dual_link_lvds_callback,
-		.ident = "Apple MacBook Pro (Core i5/i7 Series)",
+		.ident = "Apple MacBook Pro 15\" (2010)",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro6,2"),
+		},
+	},
+	{
+		.callback = intel_dual_link_lvds_callback,
+		.ident = "Apple MacBook Pro 15\" (2011)",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro8,2"),
 		},
 	},
+	{
+		.callback = intel_dual_link_lvds_callback,
+		.ident = "Apple MacBook Pro 15\" (2012)",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro9,1"),
+		},
+	},
 	{ }	/* terminating entry */
 };
 
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 7ad66823d022..56998eca1a8d 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -908,6 +908,18 @@ static inline void mmc_blk_reset_success(struct mmc_blk_data *md, int type)
 	md->reset_done &= ~type;
 }
 
+int mmc_access_rpmb(struct mmc_queue *mq)
+{
+	struct mmc_blk_data *md = mq->data;
+	/*
+	 * If this is a RPMB partition access, return ture
+	 */
+	if (md && md->part_type == EXT_CSD_PART_CONFIG_ACC_RPMB)
+		return true;
+
+	return false;
+}
+
 static int mmc_blk_issue_discard_rq(struct mmc_queue *mq, struct request *req)
 {
 	struct mmc_blk_data *md = mq->data;
diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c
index 9447a0e970d1..645519fe3acd 100644
--- a/drivers/mmc/card/queue.c
+++ b/drivers/mmc/card/queue.c
@@ -37,7 +37,7 @@ static int mmc_prep_request(struct request_queue *q, struct request *req)
 		return BLKPREP_KILL;
 	}
 
-	if (mq && mmc_card_removed(mq->card))
+	if (mq && (mmc_card_removed(mq->card) || mmc_access_rpmb(mq)))
 		return BLKPREP_KILL;
 
 	req->cmd_flags |= REQ_DONTPREP;
diff --git a/drivers/mmc/card/queue.h b/drivers/mmc/card/queue.h
index 5752d50049a3..99e6521e6169 100644
--- a/drivers/mmc/card/queue.h
+++ b/drivers/mmc/card/queue.h
@@ -73,4 +73,6 @@ extern void mmc_queue_bounce_post(struct mmc_queue_req *);
 extern int mmc_packed_init(struct mmc_queue *, struct mmc_card *);
 extern void mmc_packed_clean(struct mmc_queue *);
 
+extern int mmc_access_rpmb(struct mmc_queue *);
+
 #endif
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index 9c9fc69a01b3..ea40c5139766 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -1077,7 +1077,7 @@ void devm_pinctrl_put(struct pinctrl *p)
 EXPORT_SYMBOL_GPL(devm_pinctrl_put);
 
 int pinctrl_register_map(struct pinctrl_map const *maps, unsigned num_maps,
-			 bool dup, bool locked)
+			 bool dup)
 {
 	int i, ret;
 	struct pinctrl_maps *maps_node;
@@ -1145,11 +1145,9 @@ int pinctrl_register_map(struct pinctrl_map const *maps, unsigned num_maps,
 		maps_node->maps = maps;
 	}
 
-	if (!locked)
-		mutex_lock(&pinctrl_maps_mutex);
+	mutex_lock(&pinctrl_maps_mutex);
 	list_add_tail(&maps_node->node, &pinctrl_maps);
-	if (!locked)
-		mutex_unlock(&pinctrl_maps_mutex);
+	mutex_unlock(&pinctrl_maps_mutex);
 
 	return 0;
 }
@@ -1164,7 +1162,7 @@ int pinctrl_register_map(struct pinctrl_map const *maps, unsigned num_maps,
 int pinctrl_register_mappings(struct pinctrl_map const *maps,
 			      unsigned num_maps)
 {
-	return pinctrl_register_map(maps, num_maps, true, false);
+	return pinctrl_register_map(maps, num_maps, true);
 }
 
 void pinctrl_unregister_map(struct pinctrl_map const *map)
diff --git a/drivers/pinctrl/core.h b/drivers/pinctrl/core.h
index 75476b3d87da..b24ea846c867 100644
--- a/drivers/pinctrl/core.h
+++ b/drivers/pinctrl/core.h
@@ -183,7 +183,7 @@ static inline struct pin_desc *pin_desc_get(struct pinctrl_dev *pctldev,
 }
 
 int pinctrl_register_map(struct pinctrl_map const *maps, unsigned num_maps,
-			 bool dup, bool locked);
+			 bool dup);
 void pinctrl_unregister_map(struct pinctrl_map const *map);
 
 extern int pinctrl_force_sleep(struct pinctrl_dev *pctldev);
diff --git a/drivers/pinctrl/devicetree.c b/drivers/pinctrl/devicetree.c
index 340fb4e6c600..fd91c4c31f6b 100644
--- a/drivers/pinctrl/devicetree.c
+++ b/drivers/pinctrl/devicetree.c
@@ -92,7 +92,7 @@ static int dt_remember_or_free_map(struct pinctrl *p, const char *statename,
 	dt_map->num_maps = num_maps;
 	list_add_tail(&dt_map->node, &p->dt_maps);
 
-	return pinctrl_register_map(map, num_maps, false, true);
+	return pinctrl_register_map(map, num_maps, false);
 }
 
 struct pinctrl_dev *of_pinctrl_get(struct device_node *np)
diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
index 4fc32c8091e9..ff92155dbc88 100644
--- a/drivers/tty/hvc/hvc_xen.c
+++ b/drivers/tty/hvc/hvc_xen.c
@@ -299,11 +299,27 @@ static int xen_initial_domain_console_init(void)
 	return 0;
 }
 
+static void xen_console_update_evtchn(struct xencons_info *info)
+{
+	if (xen_hvm_domain()) {
+		uint64_t v;
+		int err;
+
+		err = hvm_get_parameter(HVM_PARAM_CONSOLE_EVTCHN, &v);
+		if (!err && v)
+			info->evtchn = v;
+	} else
+		info->evtchn = xen_start_info->console.domU.evtchn;
+}
+
 void xen_console_resume(void)
 {
 	struct xencons_info *info = vtermno_to_xencons(HVC_COOKIE);
-	if (info != NULL && info->irq)
+	if (info != NULL && info->irq) {
+		if (!xen_initial_domain())
+			xen_console_update_evtchn(info);
 		rebind_evtchn_irq(info->evtchn, info->irq);
+	}
 }
 
 static void xencons_disconnect_backend(struct xencons_info *info)
diff --git a/fs/nilfs2/btree.c b/fs/nilfs2/btree.c
index ecdbae19a766..090d8ce25bd1 100644
--- a/fs/nilfs2/btree.c
+++ b/fs/nilfs2/btree.c
@@ -388,7 +388,7 @@ static int nilfs_btree_root_broken(const struct nilfs_btree_node *node,
 	nchildren = nilfs_btree_node_get_nchildren(node);
 
 	if (unlikely(level < NILFS_BTREE_LEVEL_NODE_MIN ||
-		     level > NILFS_BTREE_LEVEL_MAX ||
+		     level >= NILFS_BTREE_LEVEL_MAX ||
 		     nchildren < 0 ||
 		     nchildren > NILFS_BTREE_ROOT_NCHILDREN_MAX)) {
 		pr_crit("NILFS: bad btree root (inode number=%lu): level = %d, flags = 0x%x, nchildren = %d\n",
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index 2b941113e423..2c119d5d04c9 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -729,6 +729,19 @@ lookup:
 	if (tmpres) {
 		spin_unlock(&dlm->spinlock);
 		spin_lock(&tmpres->spinlock);
+
+		/*
+		 * Right after dlm spinlock was released, dlm_thread could have
+		 * purged the lockres. Check if lockres got unhashed. If so
+		 * start over.
+		 */
+		if (hlist_unhashed(&tmpres->hash_node)) {
+			spin_unlock(&tmpres->spinlock);
+			dlm_lockres_put(tmpres);
+			tmpres = NULL;
+			goto lookup;
+		}
+
 		/* Wait on the thread that is mastering the resource */
 		if (tmpres->owner == DLM_LOCK_RES_OWNER_UNKNOWN) {
 			__dlm_wait_on_lockres(tmpres);
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 454881e6450a..fcabb1597d5b 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -177,7 +177,7 @@ acpi_status acpi_load_tables(void);
  */
 acpi_status acpi_reallocate_root_table(void);
 
-acpi_status acpi_find_root_pointer(acpi_size *rsdp_address);
+acpi_status acpi_find_root_pointer(acpi_physical_address *rsdp_address);
 
 acpi_status acpi_unload_table_id(acpi_owner_id id);
 
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 6de0f2c14ec0..f05efb1160fb 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -11,8 +11,6 @@
 #include <linux/irqnr.h>
 #include <linux/hardirq.h>
 #include <linux/irqflags.h>
-#include <linux/smp.h>
-#include <linux/percpu.h>
 #include <linux/hrtimer.h>
 #include <linux/kref.h>
 #include <linux/workqueue.h>
@@ -488,15 +486,6 @@ extern void __raise_softirq_irqoff(unsigned int nr);
 extern void raise_softirq_irqoff(unsigned int nr);
 extern void raise_softirq(unsigned int nr);
 
-/* This is the worklist that queues up per-cpu softirq work.
- *
- * send_remote_sendirq() adds work to these lists, and
- * the softirq handler itself dequeues from them.  The queues
- * are protected by disabling local cpu interrupts and they must
- * only be accessed by the local cpu that they are for.
- */
-DECLARE_PER_CPU(struct list_head [NR_SOFTIRQS], softirq_work_list);
-
 DECLARE_PER_CPU(struct task_struct *, ksoftirqd);
 
 static inline struct task_struct *this_cpu_ksoftirqd(void)
@@ -504,17 +493,6 @@ static inline struct task_struct *this_cpu_ksoftirqd(void)
 	return this_cpu_read(ksoftirqd);
 }
 
-/* Try to send a softirq to a remote cpu.  If this cannot be done, the
- * work will be queued to the local cpu.
- */
-extern void send_remote_softirq(struct call_single_data *cp, int cpu, int softirq);
-
-/* Like send_remote_softirq(), but the caller must disable local cpu interrupts
- * and compute the current cpu, passed in as 'this_cpu'.
- */
-extern void __send_remote_softirq(struct call_single_data *cp, int cpu,
-				  int this_cpu, int softirq);
-
 /* Tasklets --- multithreaded analogue of BHs.
 
    Main feature differing them of generic softirqs: tasklet
diff --git a/include/linux/nilfs2_fs.h b/include/linux/nilfs2_fs.h
index 98755767c7b0..1108acaacfc6 100644
--- a/include/linux/nilfs2_fs.h
+++ b/include/linux/nilfs2_fs.h
@@ -458,7 +458,7 @@ struct nilfs_btree_node {
 /* level */
 #define NILFS_BTREE_LEVEL_DATA          0
 #define NILFS_BTREE_LEVEL_NODE_MIN      (NILFS_BTREE_LEVEL_DATA + 1)
-#define NILFS_BTREE_LEVEL_MAX           14
+#define NILFS_BTREE_LEVEL_MAX           14	/* Max level (exclusive) */
 
 /**
  * struct nilfs_palloc_group_desc - block group descriptor
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 21956f00cb51..b538df367de3 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -6,8 +6,6 @@
  *	Distribute under GPLv2.
  *
  *	Rewritten. Old one was good in 2.2, but in 2.3 it was immoral. --ANK (990903)
- *
- *	Remote softirq infrastructure is by Jens Axboe.
  */
 
 #include <linux/export.h>
@@ -620,146 +618,17 @@ void tasklet_hrtimer_init(struct tasklet_hrtimer *ttimer,
 }
 EXPORT_SYMBOL_GPL(tasklet_hrtimer_init);
 
-/*
- * Remote softirq bits
- */
-
-DEFINE_PER_CPU(struct list_head [NR_SOFTIRQS], softirq_work_list);
-EXPORT_PER_CPU_SYMBOL(softirq_work_list);
-
-static void __local_trigger(struct call_single_data *cp, int softirq)
-{
-	struct list_head *head = &__get_cpu_var(softirq_work_list[softirq]);
-
-	list_add_tail(&cp->list, head);
-
-	/* Trigger the softirq only if the list was previously empty.  */
-	if (head->next == &cp->list)
-		raise_softirq_irqoff(softirq);
-}
-
-#ifdef CONFIG_USE_GENERIC_SMP_HELPERS
-static void remote_softirq_receive(void *data)
-{
-	struct call_single_data *cp = data;
-	unsigned long flags;
-	int softirq;
-
-	softirq = *(int *)cp->info;
-	local_irq_save(flags);
-	__local_trigger(cp, softirq);
-	local_irq_restore(flags);
-}
-
-static int __try_remote_softirq(struct call_single_data *cp, int cpu, int softirq)
-{
-	if (cpu_online(cpu)) {
-		cp->func = remote_softirq_receive;
-		cp->info = &softirq;
-		cp->flags = 0;
-
-		__smp_call_function_single(cpu, cp, 0);
-		return 0;
-	}
-	return 1;
-}
-#else /* CONFIG_USE_GENERIC_SMP_HELPERS */
-static int __try_remote_softirq(struct call_single_data *cp, int cpu, int softirq)
-{
-	return 1;
-}
-#endif
-
-/**
- * __send_remote_softirq - try to schedule softirq work on a remote cpu
- * @cp: private SMP call function data area
- * @cpu: the remote cpu
- * @this_cpu: the currently executing cpu
- * @softirq: the softirq for the work
- *
- * Attempt to schedule softirq work on a remote cpu.  If this cannot be
- * done, the work is instead queued up on the local cpu.
- *
- * Interrupts must be disabled.
- */
-void __send_remote_softirq(struct call_single_data *cp, int cpu, int this_cpu, int softirq)
-{
-	if (cpu == this_cpu || __try_remote_softirq(cp, cpu, softirq))
-		__local_trigger(cp, softirq);
-}
-EXPORT_SYMBOL(__send_remote_softirq);
-
-/**
- * send_remote_softirq - try to schedule softirq work on a remote cpu
- * @cp: private SMP call function data area
- * @cpu: the remote cpu
- * @softirq: the softirq for the work
- *
- * Like __send_remote_softirq except that disabling interrupts and
- * computing the current cpu is done for the caller.
- */
-void send_remote_softirq(struct call_single_data *cp, int cpu, int softirq)
-{
-	unsigned long flags;
-	int this_cpu;
-
-	local_irq_save(flags);
-	this_cpu = smp_processor_id();
-	__send_remote_softirq(cp, cpu, this_cpu, softirq);
-	local_irq_restore(flags);
-}
-EXPORT_SYMBOL(send_remote_softirq);
-
-static int __cpuinit remote_softirq_cpu_notify(struct notifier_block *self,
-					       unsigned long action, void *hcpu)
-{
-	/*
-	 * If a CPU goes away, splice its entries to the current CPU
-	 * and trigger a run of the softirq
-	 */
-	if (action == CPU_DEAD || action == CPU_DEAD_FROZEN) {
-		int cpu = (unsigned long) hcpu;
-		int i;
-
-		local_irq_disable();
-		for (i = 0; i < NR_SOFTIRQS; i++) {
-			struct list_head *head = &per_cpu(softirq_work_list[i], cpu);
-			struct list_head *local_head;
-
-			if (list_empty(head))
-				continue;
-
-			local_head = &__get_cpu_var(softirq_work_list[i]);
-			list_splice_init(head, local_head);
-			raise_softirq_irqoff(i);
-		}
-		local_irq_enable();
-	}
-
-	return NOTIFY_OK;
-}
-
-static struct notifier_block __cpuinitdata remote_softirq_cpu_notifier = {
-	.notifier_call	= remote_softirq_cpu_notify,
-};
-
 void __init softirq_init(void)
 {
 	int cpu;
 
 	for_each_possible_cpu(cpu) {
-		int i;
-
 		per_cpu(tasklet_vec, cpu).tail =
 			&per_cpu(tasklet_vec, cpu).head;
 		per_cpu(tasklet_hi_vec, cpu).tail =
 			&per_cpu(tasklet_hi_vec, cpu).head;
-		for (i = 0; i < NR_SOFTIRQS; i++)
-			INIT_LIST_HEAD(&per_cpu(softirq_work_list[i], cpu));
 	}
 
-	register_hotcpu_notifier(&remote_softirq_cpu_notifier);
-
 	open_softirq(TASKLET_SOFTIRQ, tasklet_action);
 	open_softirq(HI_SOFTIRQ, tasklet_hi_action);
 }
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 603f1fa1b7a3..ca96f411b034 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1117,10 +1117,10 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
 	 * The check (unnecessarily) ignores LRU pages being isolated and
 	 * walked by the page reclaim code, however that's not a big loss.
 	 */
-	if (!PageHuge(p) && !PageTransTail(p)) {
-		if (!PageLRU(p))
-			shake_page(p, 0);
-		if (!PageLRU(p)) {
+	if (!PageHuge(p)) {
+		if (!PageLRU(hpage))
+			shake_page(hpage, 0);
+		if (!PageLRU(hpage)) {
 			/*
 			 * shake_page could have turned it free.
 			 */
diff --git a/sound/oss/sequencer.c b/sound/oss/sequencer.c
index 4ff60a6427d9..2e67dd590be5 100644
--- a/sound/oss/sequencer.c
+++ b/sound/oss/sequencer.c
@@ -683,13 +683,8 @@ static int seq_timing_event(unsigned char *event_rec)
 			break;
 
 		case TMR_ECHO:
-			if (seq_mode == SEQ_2)
-				seq_copy_to_input(event_rec, 8);
-			else
-			{
-				parm = (parm << 8 | SEQ_ECHO);
-				seq_copy_to_input((unsigned char *) &parm, 4);
-			}
+			parm = (parm << 8 | SEQ_ECHO);
+			seq_copy_to_input((unsigned char *) &parm, 4);
 			break;
 
 		default:;
@@ -1332,7 +1327,6 @@ int sequencer_ioctl(int dev, struct file *file, unsigned int cmd, void __user *a
 	int mode = translate_mode(file);
 	struct synth_info inf;
 	struct seq_event_rec event_rec;
-	unsigned long flags;
 	int __user *p = arg;
 
 	orig_dev = dev = dev >> 4;
@@ -1487,9 +1481,7 @@ int sequencer_ioctl(int dev, struct file *file, unsigned int cmd, void __user *a
 		case SNDCTL_SEQ_OUTOFBAND:
 			if (copy_from_user(&event_rec, arg, sizeof(event_rec)))
 				return -EFAULT;
-			spin_lock_irqsave(&lock,flags);
 			play_event(event_rec.arr);
-			spin_unlock_irqrestore(&lock,flags);
 			return 0;
 
 		case SNDCTL_MIDI_INFO:
--
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