Merge branch 'perf/urgent' into perf/core

So that we can get the perf bench exec stack fixes and then apply the
remaining fix for the files added after what is in perf/urgent.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

13 files changed, 20 insertions, 327 deletions

diff --git a/include/linux/freezer.h b/include/linux/freezer.h
index 0ab54e16a91f..d09af4b67cf1 100644
--- a/include/linux/freezer.h
+++ b/include/linux/freezer.h
@@ -39,6 +39,7 @@ extern bool __refrigerator(bool check_kthr_stop);
 extern int freeze_processes(void);
 extern int freeze_kernel_threads(void);
 extern void thaw_processes(void);
+extern void thaw_kernel_threads(void);
 
 static inline bool try_to_freeze(void)
 {
@@ -174,6 +175,7 @@ static inline bool __refrigerator(bool check_kthr_stop) { return false; }
 static inline int freeze_processes(void) { return -ENOSYS; }
 static inline int freeze_kernel_threads(void) { return -ENOSYS; }
 static inline void thaw_processes(void) {}
+static inline void thaw_kernel_threads(void) {}
 
 static inline bool try_to_freeze(void) { return false; }
 
diff --git a/include/linux/lp8727.h b/include/linux/lp8727.h
index d21fa2865bf4..d21fa2865bf4 100755..100644
--- a/include/linux/lp8727.h
+++ b/include/linux/lp8727.h
diff --git a/include/linux/mfd/mcp.h b/include/linux/mfd/mcp.h
index 1515e64e3663..f88c1cc0cb0f 100644
--- a/include/linux/mfd/mcp.h
+++ b/include/linux/mfd/mcp.h
@@ -10,7 +10,6 @@
 #ifndef MCP_H
 #define MCP_H
 
-#include <linux/mod_devicetable.h>
 #include <mach/dma.h>
 
 struct mcp_ops;
@@ -27,7 +26,7 @@ struct mcp {
         dma_device_t    dma_telco_rd;
         dma_device_t    dma_telco_wr;
         struct device   attached_device;
-        const char      *codec;
+        int             gpio_base;
 };
 
 struct mcp_ops {
@@ -45,11 +44,10 @@ void mcp_reg_write(struct mcp *, unsigned int, unsigned int);
 unsigned int mcp_reg_read(struct mcp *, unsigned int);
 void mcp_enable(struct mcp *);
 void mcp_disable(struct mcp *);
-const struct mcp_device_id *mcp_get_device_id(const struct mcp *mcp);
 #define mcp_get_sclk_rate(mcp)  ((mcp)->sclk_rate)
 
 struct mcp *mcp_host_alloc(struct device *, size_t);
-int mcp_host_register(struct mcp *, void *);
+int mcp_host_register(struct mcp *);
 void mcp_host_unregister(struct mcp *);
 
 struct mcp_driver {
@@ -58,7 +56,6 @@ struct mcp_driver {
         void (*remove)(struct mcp *);
         int (*suspend)(struct mcp *, pm_message_t);
         int (*resume)(struct mcp *);
-        const struct mcp_device_id *id_table;
 };
 
 int mcp_driver_register(struct mcp_driver *);
@@ -67,6 +64,9 @@ void mcp_driver_unregister(struct mcp_driver *);
 #define mcp_get_drvdata(mcp)    dev_get_drvdata(&(mcp)->attached_device)
 #define mcp_set_drvdata(mcp,d)  dev_set_drvdata(&(mcp)->attached_device, d)
 
-#define mcp_priv(mcp)           ((void *)((mcp)+1))
+static inline void *mcp_priv(struct mcp *mcp)
+{
+        return mcp + 1;
+}
 
 #endif
diff --git a/include/linux/mfd/ucb1x00.h b/include/linux/mfd/ucb1x00.h
index bc19e5fb7ea8..4321f044d1e4 100644
--- a/include/linux/mfd/ucb1x00.h
+++ b/include/linux/mfd/ucb1x00.h
@@ -104,9 +104,6 @@
 #define UCB_MODE_DYN_VFLAG_ENA  (1 << 12)
 #define UCB_MODE_AUD_OFF_CAN    (1 << 13)
 
-struct ucb1x00_plat_data {
-        int             gpio_base;
-};
 
 struct ucb1x00_irq {
         void *devid;
@@ -119,7 +116,7 @@ struct ucb1x00 {
         unsigned int            irq;
         struct semaphore        adc_sem;
         spinlock_t              io_lock;
-        const struct mcp_device_id *id;
+        u16                     id;
         u16                     io_dir;
         u16                     io_out;
         u16                     adc_cr;
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index b29e7f6f8fa5..83ac0713ed0a 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -436,17 +436,6 @@ struct spi_device_id {
                         __attribute__((aligned(sizeof(kernel_ulong_t))));
 };
 
-/* mcp */
-
-#define MCP_NAME_SIZE   20
-#define MCP_MODULE_PREFIX "mcp:"
-
-struct mcp_device_id {
-        char name[MCP_NAME_SIZE];
-        kernel_ulong_t driver_data      /* Data private to the driver */
-                        __attribute__((aligned(sizeof(kernel_ulong_t))));
-};
-
 /* dmi */
 enum dmi_field {
         DMI_NONE,
diff --git a/include/linux/mpi.h b/include/linux/mpi.h
index 06f88994ccaa..d02cca6cc8ce 100644
--- a/include/linux/mpi.h
+++ b/include/linux/mpi.h
@@ -57,8 +57,6 @@ struct gcry_mpi {
 
 typedef struct gcry_mpi *MPI;
 
-#define MPI_NULL NULL
-
 #define mpi_get_nlimbs(a)     ((a)->nlimbs)
 #define mpi_is_neg(a)         ((a)->sign)
 
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 1a81fde8f333..887ebe318c75 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -441,7 +441,7 @@ static inline void mtd_resume(struct mtd_info *mtd)
 static inline int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs)
 {
         if (!mtd->block_isbad)
-                return -EOPNOTSUPP;
+                return 0;
         return mtd->block_isbad(mtd, ofs);
 }
 
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 2234985a5e65..7d379a6bfd88 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2259,6 +2259,12 @@ static inline void mmdrop(struct mm_struct * mm)
 extern void mmput(struct mm_struct *);
 /* Grab a reference to a task's mm, if it is not already going away */
 extern struct mm_struct *get_task_mm(struct task_struct *task);
+/*
+ * Grab a reference to a task's mm, if it is not already going away
+ * and ptrace_may_access with the mode parameter passed to it
+ * succeeds.
+ */
+extern struct mm_struct *mm_access(struct task_struct *task, unsigned int mode);
 /* Remove the current tasks stale references to the old mm_struct */
 extern void mm_release(struct task_struct *, struct mm_struct *);
 /* Allocate a new mm structure and copy contents from tsk->mm */
diff --git a/include/linux/sysdev.h b/include/linux/sysdev.h
deleted file mode 100644
index 20f63d3e6144..000000000000
--- a/include/linux/sysdev.h
+++ /dev/null
@@ -1,164 +0,0 @@
-/**
- * System devices follow a slightly different driver model. 
- * They don't need to do dynammic driver binding, can't be probed, 
- * and don't reside on any type of peripheral bus. 
- * So, we represent and treat them a little differently.
- * 
- * We still have a notion of a driver for a system device, because we still
- * want to perform basic operations on these devices. 
- *
- * We also support auxiliary drivers binding to devices of a certain class.
- * 
- * This allows configurable drivers to register themselves for devices of
- * a certain type. And, it allows class definitions to reside in generic
- * code while arch-specific code can register specific drivers.
- *
- * Auxiliary drivers registered with a NULL cls are registered as drivers
- * for all system devices, and get notification calls for each device. 
- */
-
-
-#ifndef _SYSDEV_H_
-#define _SYSDEV_H_
-
-#include <linux/kobject.h>
-#include <linux/pm.h>
-
-
-struct sys_device;
-struct sysdev_class_attribute;
-
-struct sysdev_class {
-        const char *name;
-        struct list_head        drivers;
-        struct sysdev_class_attribute **attrs;
-        struct kset             kset;
-};
-
-struct sysdev_class_attribute {
-        struct attribute attr;
-        ssize_t (*show)(struct sysdev_class *, struct sysdev_class_attribute *,
-                        char *);
-        ssize_t (*store)(struct sysdev_class *, struct sysdev_class_attribute *,
-                         const char *, size_t);
-};
-
-#define _SYSDEV_CLASS_ATTR(_name,_mode,_show,_store)            \
-{                                                               \
-        .attr = {.name = __stringify(_name), .mode = _mode },   \
-        .show   = _show,                                        \
-        .store  = _store,                                       \
-}
-
-#define SYSDEV_CLASS_ATTR(_name,_mode,_show,_store)             \
-        struct sysdev_class_attribute attr_##_name =            \
-                _SYSDEV_CLASS_ATTR(_name,_mode,_show,_store)
-
-
-extern int sysdev_class_register(struct sysdev_class *);
-extern void sysdev_class_unregister(struct sysdev_class *);
-
-extern int sysdev_class_create_file(struct sysdev_class *,
-        struct sysdev_class_attribute *);
-extern void sysdev_class_remove_file(struct sysdev_class *,
-        struct sysdev_class_attribute *);
-/**
- * Auxiliary system device drivers.
- */
-
-struct sysdev_driver {
-        struct list_head        entry;
-        int     (*add)(struct sys_device *);
-        int     (*remove)(struct sys_device *);
-};
-
-
-extern int sysdev_driver_register(struct sysdev_class *, struct sysdev_driver *);
-extern void sysdev_driver_unregister(struct sysdev_class *, struct sysdev_driver *);
-
-
-/**
- * sys_devices can be simplified a lot from regular devices, because they're
- * simply not as versatile. 
- */
-
-struct sys_device {
-        u32             id;
-        struct sysdev_class     * cls;
-        struct kobject          kobj;
-};
-
-extern int sysdev_register(struct sys_device *);
-extern void sysdev_unregister(struct sys_device *);
-
-
-struct sysdev_attribute { 
-        struct attribute        attr;
-        ssize_t (*show)(struct sys_device *, struct sysdev_attribute *, char *);
-        ssize_t (*store)(struct sys_device *, struct sysdev_attribute *,
-                         const char *, size_t);
-};
-
-
-#define _SYSDEV_ATTR(_name, _mode, _show, _store)               \
-{                                                               \
-        .attr = { .name = __stringify(_name), .mode = _mode },  \
-        .show   = _show,                                        \
-        .store  = _store,                                       \
-}
-
-#define SYSDEV_ATTR(_name, _mode, _show, _store)                \
-        struct sysdev_attribute attr_##_name =                  \
-                _SYSDEV_ATTR(_name, _mode, _show, _store);
-
-extern int sysdev_create_file(struct sys_device *, struct sysdev_attribute *);
-extern void sysdev_remove_file(struct sys_device *, struct sysdev_attribute *);
-
-/* Create/remove NULL terminated attribute list */
-static inline int
-sysdev_create_files(struct sys_device *d, struct sysdev_attribute **a)
-{
-        return sysfs_create_files(&d->kobj, (const struct attribute **)a);
-}
-
-static inline void
-sysdev_remove_files(struct sys_device *d, struct sysdev_attribute **a)
-{
-        return sysfs_remove_files(&d->kobj, (const struct attribute **)a);
-}
-
-struct sysdev_ext_attribute {
-        struct sysdev_attribute attr;
-        void *var;
-};
-
-/*
- * Support for simple variable sysdev attributes.
- * The pointer to the variable is stored in a sysdev_ext_attribute
- */
-
-/* Add more types as needed */
-
-extern ssize_t sysdev_show_ulong(struct sys_device *, struct sysdev_attribute *,
-                                char *);
-extern ssize_t sysdev_store_ulong(struct sys_device *,
-                        struct sysdev_attribute *, const char *, size_t);
-extern ssize_t sysdev_show_int(struct sys_device *, struct sysdev_attribute *,
-                                char *);
-extern ssize_t sysdev_store_int(struct sys_device *,
-                        struct sysdev_attribute *, const char *, size_t);
-
-#define _SYSDEV_ULONG_ATTR(_name, _mode, _var)                          \
-        { _SYSDEV_ATTR(_name, _mode, sysdev_show_ulong, sysdev_store_ulong), \
-          &(_var) }
-#define SYSDEV_ULONG_ATTR(_name, _mode, _var)                   \
-        struct sysdev_ext_attribute attr_##_name =              \
-                _SYSDEV_ULONG_ATTR(_name, _mode, _var);
-#define _SYSDEV_INT_ATTR(_name, _mode, _var)                            \
-        { _SYSDEV_ATTR(_name, _mode, sysdev_show_int, sysdev_store_int), \
-          &(_var) }
-#define SYSDEV_INT_ATTR(_name, _mode, _var)                     \
-        struct sysdev_ext_attribute attr_##_name =              \
-                _SYSDEV_INT_ATTR(_name, _mode, _var);
-
-#endif /* _SYSDEV_H_ */
diff --git a/include/linux/usb/langwell_otg.h b/include/linux/usb/langwell_otg.h
deleted file mode 100644
index 51f17b16d312..000000000000
--- a/include/linux/usb/langwell_otg.h
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * Intel Langwell USB OTG transceiver driver
- * Copyright (C) 2008 - 2010, Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#ifndef __LANGWELL_OTG_H
-#define __LANGWELL_OTG_H
-
-#include <linux/usb/intel_mid_otg.h>
-
-#define CI_USBCMD               0x30
-#       define USBCMD_RST               BIT(1)
-#       define USBCMD_RS                BIT(0)
-#define CI_USBSTS               0x34
-#       define USBSTS_SLI               BIT(8)
-#       define USBSTS_URI               BIT(6)
-#       define USBSTS_PCI               BIT(2)
-#define CI_PORTSC1              0x74
-#       define PORTSC_PP                BIT(12)
-#       define PORTSC_LS                (BIT(11) | BIT(10))
-#       define PORTSC_SUSP              BIT(7)
-#       define PORTSC_CCS               BIT(0)
-#define CI_HOSTPC1              0xb4
-#       define HOSTPC1_PHCD             BIT(22)
-#define CI_OTGSC                0xf4
-#       define OTGSC_DPIE               BIT(30)
-#       define OTGSC_1MSE               BIT(29)
-#       define OTGSC_BSEIE              BIT(28)
-#       define OTGSC_BSVIE              BIT(27)
-#       define OTGSC_ASVIE              BIT(26)
-#       define OTGSC_AVVIE              BIT(25)
-#       define OTGSC_IDIE               BIT(24)
-#       define OTGSC_DPIS               BIT(22)
-#       define OTGSC_1MSS               BIT(21)
-#       define OTGSC_BSEIS              BIT(20)
-#       define OTGSC_BSVIS              BIT(19)
-#       define OTGSC_ASVIS              BIT(18)
-#       define OTGSC_AVVIS              BIT(17)
-#       define OTGSC_IDIS               BIT(16)
-#       define OTGSC_DPS                BIT(14)
-#       define OTGSC_1MST               BIT(13)
-#       define OTGSC_BSE                BIT(12)
-#       define OTGSC_BSV                BIT(11)
-#       define OTGSC_ASV                BIT(10)
-#       define OTGSC_AVV                BIT(9)
-#       define OTGSC_ID                 BIT(8)
-#       define OTGSC_HABA               BIT(7)
-#       define OTGSC_HADP               BIT(6)
-#       define OTGSC_IDPU               BIT(5)
-#       define OTGSC_DP                 BIT(4)
-#       define OTGSC_OT                 BIT(3)
-#       define OTGSC_HAAR               BIT(2)
-#       define OTGSC_VC                 BIT(1)
-#       define OTGSC_VD                 BIT(0)
-#       define OTGSC_INTEN_MASK         (0x7f << 24)
-#       define OTGSC_INT_MASK           (0x5f << 24)
-#       define OTGSC_INTSTS_MASK        (0x7f << 16)
-#define CI_USBMODE              0xf8
-#       define USBMODE_CM               (BIT(1) | BIT(0))
-#       define USBMODE_IDLE             0
-#       define USBMODE_DEVICE           0x2
-#       define USBMODE_HOST             0x3
-#define USBCFG_ADDR                     0xff10801c
-#define USBCFG_LEN                      4
-#       define USBCFG_VBUSVAL           BIT(14)
-#       define USBCFG_AVALID            BIT(13)
-#       define USBCFG_BVALID            BIT(12)
-#       define USBCFG_SESEND            BIT(11)
-
-#define INTR_DUMMY_MASK (USBSTS_SLI | USBSTS_URI | USBSTS_PCI)
-
-enum langwell_otg_timer_type {
-        TA_WAIT_VRISE_TMR,
-        TA_WAIT_BCON_TMR,
-        TA_AIDL_BDIS_TMR,
-        TB_ASE0_BRST_TMR,
-        TB_SE0_SRP_TMR,
-        TB_SRP_INIT_TMR,
-        TB_SRP_FAIL_TMR,
-        TB_BUS_SUSPEND_TMR
-};
-
-#define TA_WAIT_VRISE   100
-#define TA_WAIT_BCON    30000
-#define TA_AIDL_BDIS    15000
-#define TB_ASE0_BRST    5000
-#define TB_SE0_SRP      2
-#define TB_SRP_INIT     100
-#define TB_SRP_FAIL     5500
-#define TB_BUS_SUSPEND  500
-
-struct langwell_otg_timer {
-        unsigned long expires;  /* Number of count increase to timeout */
-        unsigned long count;    /* Tick counter */
-        void (*function)(unsigned long);        /* Timeout function */
-        unsigned long data;     /* Data passed to function */
-        struct list_head list;
-};
-
-struct langwell_otg {
-        struct intel_mid_otg_xceiv      iotg;
-        struct device                   *dev;
-
-        void __iomem                    *usbcfg;        /* SCCBUSB config Reg */
-
-        unsigned                        region;
-        unsigned                        cfg_region;
-
-        struct work_struct              work;
-        struct workqueue_struct         *qwork;
-        struct timer_list               hsm_timer;
-
-        spinlock_t                      lock;
-        spinlock_t                      wq_lock;
-
-        struct notifier_block           iotg_notifier;
-};
-
-static inline
-struct langwell_otg *mid_xceiv_to_lnw(struct intel_mid_otg_xceiv *iotg)
-{
-        return container_of(iotg, struct langwell_otg, iotg);
-}
-
-#endif /* __LANGWELL_OTG_H__ */
diff --git a/include/net/netns/generic.h b/include/net/netns/generic.h
index 3419bf5cd154..d55f43443335 100644
--- a/include/net/netns/generic.h
+++ b/include/net/netns/generic.h
@@ -41,6 +41,7 @@ static inline void *net_generic(const struct net *net, int id)
         ptr = ng->ptr[id - 1];
         rcu_read_unlock();
 
+        BUG_ON(!ptr);
         return ptr;
 }
 #endif
diff --git a/include/net/sock.h b/include/net/sock.h
index 4c69ac165e6b..91c1c8baf020 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -55,6 +55,7 @@
 #include <linux/uaccess.h>
 #include <linux/memcontrol.h>
 #include <linux/res_counter.h>
+#include <linux/jump_label.h>
 
 #include <linux/filter.h>
 #include <linux/rculist_nulls.h>
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 0118ea999f67..d49db0113a06 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -311,6 +311,8 @@ extern struct proto tcp_prot;
 #define TCP_ADD_STATS_USER(net, field, val) SNMP_ADD_STATS_USER((net)->mib.tcp_statistics, field, val)
 #define TCP_ADD_STATS(net, field, val)  SNMP_ADD_STATS((net)->mib.tcp_statistics, field, val)
 
+extern void tcp_init_mem(struct net *net);
+
 extern void tcp_v4_err(struct sk_buff *skb, u32);
 
 extern void tcp_shutdown (struct sock *sk, int how);