16 files changed, 243 insertions, 42 deletions

diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h
index 81e803e90aa4..acba894374a1 100644
--- a/include/linux/clockchips.h
+++ b/include/linux/clockchips.h
@@ -132,6 +132,7 @@ extern u64 clockevent_delta2ns(unsigned long latch,
                                struct clock_event_device *evt);
 extern void clockevents_register_device(struct clock_event_device *dev);
 
+extern void clockevents_config(struct clock_event_device *dev, u32 freq);
 extern void clockevents_config_and_register(struct clock_event_device *dev,
                                             u32 freq, unsigned long min_delta,
                                             unsigned long max_delta);
diff --git a/include/linux/compaction.h b/include/linux/compaction.h
index e988037abd2a..51a90b7f2d60 100644
--- a/include/linux/compaction.h
+++ b/include/linux/compaction.h
@@ -1,8 +1,6 @@
 #ifndef _LINUX_COMPACTION_H
 #define _LINUX_COMPACTION_H
 
-#include <linux/node.h>
-
 /* Return values for compact_zone() and try_to_compact_pages() */
 /* compaction didn't start as it was not possible or direct reclaim was more suitable */
 #define COMPACT_SKIPPED         0
@@ -13,23 +11,6 @@
 /* The full zone was compacted */
 #define COMPACT_COMPLETE        3
 
-/*
- * compaction supports three modes
- *
- * COMPACT_ASYNC_MOVABLE uses asynchronous migration and only scans
- *    MIGRATE_MOVABLE pageblocks as migration sources and targets.
- * COMPACT_ASYNC_UNMOVABLE uses asynchronous migration and only scans
- *    MIGRATE_MOVABLE pageblocks as migration sources.
- *    MIGRATE_UNMOVABLE pageblocks are scanned as potential migration
- *    targets and convers them to MIGRATE_MOVABLE if possible
- * COMPACT_SYNC uses synchronous migration and scans all pageblocks
- */
-enum compact_mode {
-        COMPACT_ASYNC_MOVABLE,
-        COMPACT_ASYNC_UNMOVABLE,
-        COMPACT_SYNC,
-};
-
 #ifdef CONFIG_COMPACTION
 extern int sysctl_compact_memory;
 extern int sysctl_compaction_handler(struct ctl_table *table, int write,
diff --git a/include/linux/frontswap.h b/include/linux/frontswap.h
new file mode 100644
index 000000000000..0e4e2eec5c1d
--- /dev/null
+++ b/include/linux/frontswap.h
@@ -0,0 +1,127 @@
+#ifndef _LINUX_FRONTSWAP_H
+#define _LINUX_FRONTSWAP_H
+
+#include <linux/swap.h>
+#include <linux/mm.h>
+#include <linux/bitops.h>
+
+struct frontswap_ops {
+        void (*init)(unsigned);
+        int (*store)(unsigned, pgoff_t, struct page *);
+        int (*load)(unsigned, pgoff_t, struct page *);
+        void (*invalidate_page)(unsigned, pgoff_t);
+        void (*invalidate_area)(unsigned);
+};
+
+extern bool frontswap_enabled;
+extern struct frontswap_ops
+        frontswap_register_ops(struct frontswap_ops *ops);
+extern void frontswap_shrink(unsigned long);
+extern unsigned long frontswap_curr_pages(void);
+extern void frontswap_writethrough(bool);
+
+extern void __frontswap_init(unsigned type);
+extern int __frontswap_store(struct page *page);
+extern int __frontswap_load(struct page *page);
+extern void __frontswap_invalidate_page(unsigned, pgoff_t);
+extern void __frontswap_invalidate_area(unsigned);
+
+#ifdef CONFIG_FRONTSWAP
+
+static inline bool frontswap_test(struct swap_info_struct *sis, pgoff_t offset)
+{
+        bool ret = false;
+
+        if (frontswap_enabled && sis->frontswap_map)
+                ret = test_bit(offset, sis->frontswap_map);
+        return ret;
+}
+
+static inline void frontswap_set(struct swap_info_struct *sis, pgoff_t offset)
+{
+        if (frontswap_enabled && sis->frontswap_map)
+                set_bit(offset, sis->frontswap_map);
+}
+
+static inline void frontswap_clear(struct swap_info_struct *sis, pgoff_t offset)
+{
+        if (frontswap_enabled && sis->frontswap_map)
+                clear_bit(offset, sis->frontswap_map);
+}
+
+static inline void frontswap_map_set(struct swap_info_struct *p,
+                                     unsigned long *map)
+{
+        p->frontswap_map = map;
+}
+
+static inline unsigned long *frontswap_map_get(struct swap_info_struct *p)
+{
+        return p->frontswap_map;
+}
+#else
+/* all inline routines become no-ops and all externs are ignored */
+
+#define frontswap_enabled (0)
+
+static inline bool frontswap_test(struct swap_info_struct *sis, pgoff_t offset)
+{
+        return false;
+}
+
+static inline void frontswap_set(struct swap_info_struct *sis, pgoff_t offset)
+{
+}
+
+static inline void frontswap_clear(struct swap_info_struct *sis, pgoff_t offset)
+{
+}
+
+static inline void frontswap_map_set(struct swap_info_struct *p,
+                                     unsigned long *map)
+{
+}
+
+static inline unsigned long *frontswap_map_get(struct swap_info_struct *p)
+{
+        return NULL;
+}
+#endif
+
+static inline int frontswap_store(struct page *page)
+{
+        int ret = -1;
+
+        if (frontswap_enabled)
+                ret = __frontswap_store(page);
+        return ret;
+}
+
+static inline int frontswap_load(struct page *page)
+{
+        int ret = -1;
+
+        if (frontswap_enabled)
+                ret = __frontswap_load(page);
+        return ret;
+}
+
+static inline void frontswap_invalidate_page(unsigned type, pgoff_t offset)
+{
+        if (frontswap_enabled)
+                __frontswap_invalidate_page(type, offset);
+}
+
+static inline void frontswap_invalidate_area(unsigned type)
+{
+        if (frontswap_enabled)
+                __frontswap_invalidate_area(type);
+}
+
+static inline void frontswap_init(unsigned type)
+{
+        if (frontswap_enabled)
+                __frontswap_init(type);
+}
+
+#endif /* _LINUX_FRONTSWAP_H */
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 51978ed43e97..17fd887c798f 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -802,13 +802,14 @@ struct inode {
                 unsigned int __i_nlink;
         };
         dev_t                   i_rdev;
+        loff_t                  i_size;
         struct timespec         i_atime;
         struct timespec         i_mtime;
         struct timespec         i_ctime;
         spinlock_t              i_lock; /* i_blocks, i_bytes, maybe i_size */
         unsigned short          i_bytes;
+        unsigned int            i_blkbits;
         blkcnt_t                i_blocks;
-        loff_t                  i_size;
 
 #ifdef __NEED_I_SIZE_ORDERED
         seqcount_t              i_size_seqcount;
@@ -828,9 +829,8 @@ struct inode {
                 struct list_head        i_dentry;
                 struct rcu_head         i_rcu;
         };
-        atomic_t                i_count;
-        unsigned int            i_blkbits;
         u64                     i_version;
+        atomic_t                i_count;
         atomic_t                i_dio_count;
         atomic_t                i_writecount;
         const struct file_operations    *i_fop; /* former ->i_op->default_file_ops */
diff --git a/include/linux/fuse.h b/include/linux/fuse.h
index 8f2ab8fef929..9303348965fb 100644
--- a/include/linux/fuse.h
+++ b/include/linux/fuse.h
@@ -54,6 +54,9 @@
  * 7.18
  *  - add FUSE_IOCTL_DIR flag
  *  - add FUSE_NOTIFY_DELETE
+ *
+ * 7.19
+ *  - add FUSE_FALLOCATE
  */
 
 #ifndef _LINUX_FUSE_H
@@ -85,7 +88,7 @@
 #define FUSE_KERNEL_VERSION 7
 
 /** Minor version number of this interface */
-#define FUSE_KERNEL_MINOR_VERSION 18
+#define FUSE_KERNEL_MINOR_VERSION 19
 
 /** The node ID of the root inode */
 #define FUSE_ROOT_ID 1
@@ -278,6 +281,7 @@ enum fuse_opcode {
         FUSE_POLL          = 40,
         FUSE_NOTIFY_REPLY  = 41,
         FUSE_BATCH_FORGET  = 42,
+        FUSE_FALLOCATE     = 43,
 
         /* CUSE specific operations */
         CUSE_INIT          = 4096,
@@ -571,6 +575,14 @@ struct fuse_notify_poll_wakeup_out {
         __u64   kh;
 };
 
+struct fuse_fallocate_in {
+        __u64   fh;
+        __u64   offset;
+        __u64   length;
+        __u32   mode;
+        __u32   padding;
+};
+
 struct fuse_in_header {
         __u32   len;
         __u32   opcode;
diff --git a/include/linux/i2c-mux-pinctrl.h b/include/linux/i2c-mux-pinctrl.h
new file mode 100644
index 000000000000..a65c86429e84
--- /dev/null
+++ b/include/linux/i2c-mux-pinctrl.h
@@ -0,0 +1,41 @@
+/*
+ * i2c-mux-pinctrl platform data
+ *
+ * Copyright (c) 2012, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _LINUX_I2C_MUX_PINCTRL_H
+#define _LINUX_I2C_MUX_PINCTRL_H
+
+/**
+ * struct i2c_mux_pinctrl_platform_data - Platform data for i2c-mux-pinctrl
+ * @parent_bus_num: Parent I2C bus number
+ * @base_bus_num: Base I2C bus number for the child busses. 0 for dynamic.
+ * @bus_count: Number of child busses. Also the number of elements in
+ *      @pinctrl_states
+ * @pinctrl_states: The names of the pinctrl state to select for each child bus
+ * @pinctrl_state_idle: The pinctrl state to select when no child bus is being
+ *      accessed. If NULL, the most recently used pinctrl state will be left
+ *      selected.
+ */
+struct i2c_mux_pinctrl_platform_data {
+        int parent_bus_num;
+        int base_bus_num;
+        int bus_count;
+        const char **pinctrl_states;
+        const char *pinctrl_state_idle;
+};
+
+#endif
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index e4baff5f7ff4..9e65eff6af3b 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -149,6 +149,7 @@ extern struct cred init_cred;
         .normal_prio    = MAX_PRIO-20,                                  \
         .policy         = SCHED_NORMAL,                                 \
         .cpus_allowed   = CPU_MASK_ALL,                                 \
+        .nr_cpus_allowed= NR_CPUS,                                      \
         .mm             = NULL,                                         \
         .active_mm      = &init_mm,                                     \
         .se             = {                                             \
@@ -157,7 +158,6 @@ extern struct cred init_cred;
         .rt             = {                                             \
                 .run_list       = LIST_HEAD_INIT(tsk.rt.run_list),      \
                 .time_slice     = RR_TIMESLICE,                         \
-                .nr_cpus_allowed = NR_CPUS,                             \
         },                                                              \
         .tasks          = LIST_HEAD_INIT(tsk.tasks),                    \
         INIT_PUSHABLE_TASKS(tsk)                                        \
diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
index 1b14d25162cb..d6a58065c09c 100644
--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h
@@ -128,7 +128,7 @@ struct kparam_array
  * The ops can have NULL set or get functions.
  */
 #define module_param_cb(name, ops, arg, perm)                                 \
-        __module_param_call(MODULE_PARAM_PREFIX, name, ops, arg, perm, 0)
+        __module_param_call(MODULE_PARAM_PREFIX, name, ops, arg, perm, -1)
 
 /**
  * <level>_param_cb - general callback for a module/cmdline parameter
@@ -192,7 +192,7 @@ struct kparam_array
                  { (void *)set, (void *)get };                          \
         __module_param_call(MODULE_PARAM_PREFIX,                        \
                             name, &__param_ops_##name, arg,             \
-                            (perm) + sizeof(__check_old_set_param(set))*0, 0)
+                            (perm) + sizeof(__check_old_set_param(set))*0, -1)
 
 /* We don't get oldget: it's often a new-style param_get_uint, etc. */
 static inline int
@@ -272,7 +272,7 @@ static inline void __kernel_param_unlock(void)
  */
 #define core_param(name, var, type, perm)                               \
         param_check_##type(name, &(var));                               \
-        __module_param_call("", name, &param_ops_##type, &var, perm, 0)
+        __module_param_call("", name, &param_ops_##type, &var, perm, -1)
 #endif /* !MODULE */
 
 /**
@@ -290,7 +290,7 @@ static inline void __kernel_param_unlock(void)
                 = { len, string };                                      \
         __module_param_call(MODULE_PARAM_PREFIX, name,                  \
                             &param_ops_string,                          \
-                            .str = &__param_string_##name, perm, 0);    \
+                            .str = &__param_string_##name, perm, -1);   \
         __MODULE_PARM_TYPE(name, "string")
 
 /**
@@ -432,7 +432,7 @@ extern int param_set_bint(const char *val, const struct kernel_param *kp);
         __module_param_call(MODULE_PARAM_PREFIX, name,                  \
                             &param_array_ops,                           \
                             .arr = &__param_arr_##name,                 \
-                            perm, 0);                                   \
+                            perm, -1);                                  \
         __MODULE_PARM_TYPE(name, "array of " #type)
 
 extern struct kernel_param_ops param_array_ops;
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index f32578634d9d..45db49f64bb4 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -555,6 +555,8 @@ enum perf_event_type {
         PERF_RECORD_MAX,                        /* non-ABI */
 };
 
+#define PERF_MAX_STACK_DEPTH            127
+
 enum perf_callchain_context {
         PERF_CONTEXT_HV                 = (__u64)-32,
         PERF_CONTEXT_KERNEL             = (__u64)-128,
@@ -609,8 +611,6 @@ struct perf_guest_info_callbacks {
 #include <linux/sysfs.h>
 #include <asm/local.h>
 
-#define PERF_MAX_STACK_DEPTH            255
-
 struct perf_callchain_entry {
         __u64                           nr;
         __u64                           ip[PERF_MAX_STACK_DEPTH];
diff --git a/include/linux/prctl.h b/include/linux/prctl.h
index 711e0a30aacc..3988012255dc 100644
--- a/include/linux/prctl.h
+++ b/include/linux/prctl.h
@@ -127,8 +127,8 @@
 #define PR_SET_PTRACER 0x59616d61
 # define PR_SET_PTRACER_ANY ((unsigned long)-1)
 
-#define PR_SET_CHILD_SUBREAPER 36
-#define PR_GET_CHILD_SUBREAPER 37
+#define PR_SET_CHILD_SUBREAPER  36
+#define PR_GET_CHILD_SUBREAPER  37
 
 /*
  * If no_new_privs is set, then operations that grant new privileges (i.e.
@@ -142,7 +142,9 @@
  * asking selinux for a specific new context (e.g. with runcon) will result
  * in execve returning -EPERM.
  */
-#define PR_SET_NO_NEW_PRIVS 38
-#define PR_GET_NO_NEW_PRIVS 39
+#define PR_SET_NO_NEW_PRIVS     38
+#define PR_GET_NO_NEW_PRIVS     39
+
+#define PR_GET_TID_ADDRESS      40
 
 #endif /* _LINUX_PRCTL_H */
diff --git a/include/linux/radix-tree.h b/include/linux/radix-tree.h
index 0d04cd69ab9b..ffc444c38b0a 100644
--- a/include/linux/radix-tree.h
+++ b/include/linux/radix-tree.h
@@ -368,8 +368,11 @@ radix_tree_next_slot(void **slot, struct radix_tree_iter *iter, unsigned flags)
                         iter->index++;
                         if (likely(*slot))
                                 return slot;
-                        if (flags & RADIX_TREE_ITER_CONTIG)
+                        if (flags & RADIX_TREE_ITER_CONTIG) {
+                                /* forbid switching to the next chunk */
+                                iter->next_index = 0;
                                 break;
+                        }
                 }
         }
         return NULL;
diff --git a/include/linux/sched.h b/include/linux/sched.h
index f34437e835a7..4059c0f33f07 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -145,6 +145,7 @@ extern unsigned long this_cpu_load(void);
 
 
 extern void calc_global_load(unsigned long ticks);
+extern void update_cpu_load_nohz(void);
 
 extern unsigned long get_parent_ip(unsigned long addr);
 
@@ -438,6 +439,7 @@ extern int get_dumpable(struct mm_struct *mm);
                                         /* leave room for more dump flags */
 #define MMF_VM_MERGEABLE        16      /* KSM may merge identical pages */
 #define MMF_VM_HUGEPAGE         17      /* set when VM_HUGEPAGE is set on vma */
+#define MMF_EXE_FILE_CHANGED    18      /* see prctl_set_mm_exe_file() */
 
 #define MMF_INIT_MASK           (MMF_DUMPABLE_MASK | MMF_DUMP_FILTER_MASK)
 
@@ -875,6 +877,8 @@ struct sched_group_power {
          * Number of busy cpus in this group.
          */
         atomic_t nr_busy_cpus;
+
+        unsigned long cpumask[0]; /* iteration mask */
 };
 
 struct sched_group {
@@ -899,6 +903,15 @@ static inline struct cpumask *sched_group_cpus(struct sched_group *sg)
         return to_cpumask(sg->cpumask);
 }
 
+/*
+ * cpumask masking which cpus in the group are allowed to iterate up the domain
+ * tree.
+ */
+static inline struct cpumask *sched_group_mask(struct sched_group *sg)
+{
+        return to_cpumask(sg->sgp->cpumask);
+}
+
 /**
  * group_first_cpu - Returns the first cpu in the cpumask of a sched_group.
  * @group: The group whose first cpu is to be returned.
@@ -1187,7 +1200,6 @@ struct sched_rt_entity {
         struct list_head run_list;
         unsigned long timeout;
         unsigned int time_slice;
-        int nr_cpus_allowed;
 
         struct sched_rt_entity *back;
 #ifdef CONFIG_RT_GROUP_SCHED
@@ -1252,6 +1264,7 @@ struct task_struct {
 #endif
 
         unsigned int policy;
+        int nr_cpus_allowed;
         cpumask_t cpus_allowed;
 
 #ifdef CONFIG_PREEMPT_RCU
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index b534a1be540a..642cb7355df3 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -225,14 +225,11 @@ enum {
         /* device driver is going to provide hardware time stamp */
         SKBTX_IN_PROGRESS = 1 << 2,
 
-        /* ensure the originating sk reference is available on driver level */
-        SKBTX_DRV_NEEDS_SK_REF = 1 << 3,
-
         /* device driver supports TX zero-copy buffers */
-        SKBTX_DEV_ZEROCOPY = 1 << 4,
+        SKBTX_DEV_ZEROCOPY = 1 << 3,
 
         /* generate wifi status information (where possible) */
-        SKBTX_WIFI_STATUS = 1 << 5,
+        SKBTX_WIFI_STATUS = 1 << 4,
 };
 
 /*
diff --git a/include/linux/swap.h b/include/linux/swap.h
index b6661933e252..c84ec68eaec9 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -197,6 +197,10 @@ struct swap_info_struct {
         struct block_device *bdev;      /* swap device or bdev of swap file */
         struct file *swap_file;         /* seldom referenced */
         unsigned int old_block_size;    /* seldom referenced */
+#ifdef CONFIG_FRONTSWAP
+        unsigned long *frontswap_map;   /* frontswap in-use, one bit per page */
+        atomic_t frontswap_pages;       /* frontswap pages in-use counter */
+#endif
 };
 
 struct swap_list_t {
diff --git a/include/linux/swapfile.h b/include/linux/swapfile.h
new file mode 100644
index 000000000000..e282624e8c10
--- /dev/null
+++ b/include/linux/swapfile.h
@@ -0,0 +1,13 @@
+#ifndef _LINUX_SWAPFILE_H
+#define _LINUX_SWAPFILE_H
+
+/*
+ * these were static in swapfile.c but frontswap.c needs them and we don't
+ * want to expose them to the dozens of source files that include swap.h
+ */
+extern spinlock_t swap_lock;
+extern struct swap_list_t swap_list;
+extern struct swap_info_struct *swap_info[];
+extern int try_to_unuse(unsigned int, bool, unsigned long);
+
+#endif /* _LINUX_SWAPFILE_H */
diff --git a/include/linux/vga_switcheroo.h b/include/linux/vga_switcheroo.h
index b455c7c212eb..60da41fe9dc2 100644
--- a/include/linux/vga_switcheroo.h
+++ b/include/linux/vga_switcheroo.h
@@ -12,6 +12,9 @@
 enum vga_switcheroo_state {
         VGA_SWITCHEROO_OFF,
         VGA_SWITCHEROO_ON,
+        /* below are referred only from vga_switcheroo_get_client_state() */
+        VGA_SWITCHEROO_INIT,
+        VGA_SWITCHEROO_NOT_FOUND,
 };
 
 enum vga_switcheroo_client_id {
@@ -50,6 +53,8 @@ void vga_switcheroo_unregister_handler(void);
 
 int vga_switcheroo_process_delayed_switch(void);
 
+int vga_switcheroo_get_client_state(struct pci_dev *dev);
+
 #else
 
 static inline void vga_switcheroo_unregister_client(struct pci_dev *dev) {}
@@ -62,5 +67,7 @@ static inline int vga_switcheroo_register_audio_client(struct pci_dev *pdev,
         int id, bool active) { return 0; }
 static inline void vga_switcheroo_unregister_handler(void) {}
 static inline int vga_switcheroo_process_delayed_switch(void) { return 0; }
+static inline int vga_switcheroo_get_client_state(struct pci_dev *dev) { return VGA_SWITCHEROO_ON; }
+
 
 #endif