21 files changed, 214 insertions, 116 deletions

diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index b926afe8c03e..3da73f5f0ae9 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -116,11 +116,12 @@ extern unsigned long acpi_realmode_flags;
 
 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
+int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
 
 #ifdef CONFIG_X86_IO_APIC
-extern int acpi_get_override_irq(int bus_irq, int *trigger, int *polarity);
+extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
 #else
-#define acpi_get_override_irq(bus, trigger, polarity) (-1)
+#define acpi_get_override_irq(gsi, trigger, polarity) (-1)
 #endif
 /*
  * This function undoes the effect of one call to acpi_register_gsi().
diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index b796eab5ca75..fc68053378ce 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -10,6 +10,11 @@
 #define BITS_TO_LONGS(nr)       DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
 #endif
 
+extern unsigned int __sw_hweight8(unsigned int w);
+extern unsigned int __sw_hweight16(unsigned int w);
+extern unsigned int __sw_hweight32(unsigned int w);
+extern unsigned long __sw_hweight64(__u64 w);
+
 /*
  * Include this here because some architectures need generic_ffs/fls in
  * scope
@@ -44,31 +49,6 @@ static inline unsigned long hweight_long(unsigned long w)
         return sizeof(w) == 4 ? hweight32(w) : hweight64(w);
 }
 
-/*
- * Clearly slow versions of the hweightN() functions, their benefit is
- * of course compile time evaluation of constant arguments.
- */
-#define HWEIGHT8(w)                                     \
-      ( BUILD_BUG_ON_ZERO(!__builtin_constant_p(w)) +   \
-        (!!((w) & (1ULL << 0))) +                       \
-        (!!((w) & (1ULL << 1))) +                       \
-        (!!((w) & (1ULL << 2))) +                       \
-        (!!((w) & (1ULL << 3))) +                       \
-        (!!((w) & (1ULL << 4))) +                       \
-        (!!((w) & (1ULL << 5))) +                       \
-        (!!((w) & (1ULL << 6))) +                       \
-        (!!((w) & (1ULL << 7))) )
-
-#define HWEIGHT16(w) (HWEIGHT8(w)  + HWEIGHT8((w) >> 8))
-#define HWEIGHT32(w) (HWEIGHT16(w) + HWEIGHT16((w) >> 16))
-#define HWEIGHT64(w) (HWEIGHT32(w) + HWEIGHT32((w) >> 32))
-
-/*
- * Type invariant version that simply casts things to the
- * largest type.
- */
-#define HWEIGHT(w)   HWEIGHT64((u64)(w))
-
 /**
  * rol32 - rotate a 32-bit value left
  * @word: value to rotate
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index b8ad1ea99586..8f78073d7caa 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -530,6 +530,7 @@ static inline struct cgroup_subsys_state *task_subsys_state(
 {
         return rcu_dereference_check(task->cgroups->subsys[subsys_id],
                                      rcu_read_lock_held() ||
+                                     lockdep_is_held(&task->alloc_lock) ||
                                      cgroup_lock_is_held());
 }
 
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 4de02b10007f..9f15150ce8d6 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -278,6 +278,27 @@ struct freq_attr {
         ssize_t (*store)(struct cpufreq_policy *, const char *, size_t count);
 };
 
+#define cpufreq_freq_attr_ro(_name)             \
+static struct freq_attr _name =                 \
+__ATTR(_name, 0444, show_##_name, NULL)
+
+#define cpufreq_freq_attr_ro_perm(_name, _perm) \
+static struct freq_attr _name =                 \
+__ATTR(_name, _perm, show_##_name, NULL)
+
+#define cpufreq_freq_attr_ro_old(_name)         \
+static struct freq_attr _name##_old =           \
+__ATTR(_name, 0444, show_##_name##_old, NULL)
+
+#define cpufreq_freq_attr_rw(_name)             \
+static struct freq_attr _name =                 \
+__ATTR(_name, 0644, show_##_name, store_##_name)
+
+#define cpufreq_freq_attr_rw_old(_name)         \
+static struct freq_attr _name##_old =           \
+__ATTR(_name, 0644, show_##_name##_old, store_##_name##_old)
+
+
 struct global_attr {
         struct attribute attr;
         ssize_t (*show)(struct kobject *kobj,
@@ -286,6 +307,15 @@ struct global_attr {
                          const char *c, size_t count);
 };
 
+#define define_one_global_ro(_name)             \
+static struct global_attr _name =               \
+__ATTR(_name, 0444, show_##_name, NULL)
+
+#define define_one_global_rw(_name)             \
+static struct global_attr _name =               \
+__ATTR(_name, 0644, show_##_name, store_##_name)
+
+
 /*********************************************************************
  *                        CPUFREQ 2.6. INTERFACE                     *
  *********************************************************************/
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 30b93b2a01a4..eebb617c17d8 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -186,6 +186,8 @@ d_iput:		no		no		no       yes
 
 #define DCACHE_FSNOTIFY_PARENT_WATCHED  0x0080 /* Parent inode is watched by some fsnotify listener */
 
+#define DCACHE_CANT_MOUNT       0x0100
+
 extern spinlock_t dcache_lock;
 extern seqlock_t rename_lock;
 
@@ -358,6 +360,18 @@ static inline int d_unlinked(struct dentry *dentry)
         return d_unhashed(dentry) && !IS_ROOT(dentry);
 }
 
+static inline int cant_mount(struct dentry *dentry)
+{
+        return (dentry->d_flags & DCACHE_CANT_MOUNT);
+}
+
+static inline void dont_mount(struct dentry *dentry)
+{
+        spin_lock(&dentry->d_lock);
+        dentry->d_flags |= DCACHE_CANT_MOUNT;
+        spin_unlock(&dentry->d_lock);
+}
+
 static inline struct dentry *dget_parent(struct dentry *dentry)
 {
         struct dentry *ret;
diff --git a/include/linux/debugobjects.h b/include/linux/debugobjects.h
index 8c243aaa86a7..597692f1fc8d 100644
--- a/include/linux/debugobjects.h
+++ b/include/linux/debugobjects.h
@@ -20,12 +20,14 @@ struct debug_obj_descr;
  * struct debug_obj - representaion of an tracked object
  * @node:       hlist node to link the object into the tracker list
  * @state:      tracked object state
+ * @astate:     current active state
  * @object:     pointer to the real object
  * @descr:      pointer to an object type specific debug description structure
  */
 struct debug_obj {
         struct hlist_node       node;
         enum debug_obj_state    state;
+        unsigned int            astate;
         void                    *object;
         struct debug_obj_descr  *descr;
 };
@@ -60,6 +62,15 @@ extern void debug_object_deactivate(void *addr, struct debug_obj_descr *descr);
 extern void debug_object_destroy   (void *addr, struct debug_obj_descr *descr);
 extern void debug_object_free      (void *addr, struct debug_obj_descr *descr);
 
+/*
+ * Active state:
+ * - Set at 0 upon initialization.
+ * - Must return to 0 before deactivation.
+ */
+extern void
+debug_object_active_state(void *addr, struct debug_obj_descr *descr,
+                          unsigned int expect, unsigned int next);
+
 extern void debug_objects_early_init(void);
 extern void debug_objects_mem_init(void);
 #else
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index dc7fc646fa2e..ee8a8411b055 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -180,7 +180,10 @@ struct ftrace_event_call {
          */
         unsigned int            flags;
 
+#ifdef CONFIG_PERF_EVENTS
         int                     perf_refcount;
+        struct hlist_head       *perf_events;
+#endif
 };
 
 #define PERF_MAX_TRACE_SIZE     2048
@@ -237,24 +240,22 @@ struct perf_event;
 
 DECLARE_PER_CPU(struct pt_regs, perf_trace_regs);
 
-extern int perf_trace_enable(int event_id);
-extern void perf_trace_disable(int event_id);
-extern int ftrace_profile_set_filter(struct perf_event *event, int event_id,
+extern int  perf_trace_init(struct perf_event *event);
+extern void perf_trace_destroy(struct perf_event *event);
+extern int  perf_trace_enable(struct perf_event *event);
+extern void perf_trace_disable(struct perf_event *event);
+extern int  ftrace_profile_set_filter(struct perf_event *event, int event_id,
                                      char *filter_str);
 extern void ftrace_profile_free_filter(struct perf_event *event);
-extern void *
-perf_trace_buf_prepare(int size, unsigned short type, int *rctxp,
-                         unsigned long *irq_flags);
+extern void *perf_trace_buf_prepare(int size, unsigned short type,
+                                    struct pt_regs *regs, int *rctxp);
 
 static inline void
 perf_trace_buf_submit(void *raw_data, int size, int rctx, u64 addr,
-                       u64 count, unsigned long irq_flags, struct pt_regs *regs)
+                       u64 count, struct pt_regs *regs, void *head)
 {
-        struct trace_entry *entry = raw_data;
-
-        perf_tp_event(entry->type, addr, count, raw_data, size, regs);
+        perf_tp_event(addr, count, raw_data, size, regs, head);
         perf_swevent_put_recursion_context(rctx);
-        local_irq_restore(irq_flags);
 }
 #endif
 
diff --git a/include/linux/if_link.h b/include/linux/if_link.h
index c9bf92cd7653..d94963b379d9 100644
--- a/include/linux/if_link.h
+++ b/include/linux/if_link.h
@@ -79,10 +79,7 @@ enum {
         IFLA_NET_NS_PID,
         IFLA_IFALIAS,
         IFLA_NUM_VF,            /* Number of VFs if device is SR-IOV PF */
-        IFLA_VF_MAC,            /* Hardware queue specific attributes */
-        IFLA_VF_VLAN,
-        IFLA_VF_TX_RATE,        /* TX Bandwidth Allocation */
-        IFLA_VFINFO,
+        IFLA_VFINFO_LIST,
         __IFLA_MAX
 };
 
@@ -203,6 +200,24 @@ enum macvlan_mode {
 
 /* SR-IOV virtual function managment section */
 
+enum {
+        IFLA_VF_INFO_UNSPEC,
+        IFLA_VF_INFO,
+        __IFLA_VF_INFO_MAX,
+};
+
+#define IFLA_VF_INFO_MAX (__IFLA_VF_INFO_MAX - 1)
+
+enum {
+        IFLA_VF_UNSPEC,
+        IFLA_VF_MAC,            /* Hardware queue specific attributes */
+        IFLA_VF_VLAN,
+        IFLA_VF_TX_RATE,        /* TX Bandwidth Allocation */
+        __IFLA_VF_MAX,
+};
+
+#define IFLA_VF_MAX (__IFLA_VF_MAX - 1)
+
 struct ifla_vf_mac {
         __u32 vf;
         __u8 mac[32]; /* MAX_ADDR_LEN */
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index b1ed1cd8e2a8..7996fc2c9ba9 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -49,7 +49,6 @@ extern struct group_info init_groups;
                 { .first = &init_task.pids[PIDTYPE_PGID].node },        \
                 { .first = &init_task.pids[PIDTYPE_SID].node },         \
         },                                                              \
-        .rcu            = RCU_HEAD_INIT,                                \
         .level          = 0,                                            \
         .numbers        = { {                                           \
                 .nr             = 0,                                    \
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 3af4ffd591b9..be22ad83689c 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -37,9 +37,9 @@ struct iommu_ops {
         int (*attach_dev)(struct iommu_domain *domain, struct device *dev);
         void (*detach_dev)(struct iommu_domain *domain, struct device *dev);
         int (*map)(struct iommu_domain *domain, unsigned long iova,
-                   phys_addr_t paddr, size_t size, int prot);
-        void (*unmap)(struct iommu_domain *domain, unsigned long iova,
-                      size_t size);
+                   phys_addr_t paddr, int gfp_order, int prot);
+        int (*unmap)(struct iommu_domain *domain, unsigned long iova,
+                     int gfp_order);
         phys_addr_t (*iova_to_phys)(struct iommu_domain *domain,
                                     unsigned long iova);
         int (*domain_has_cap)(struct iommu_domain *domain,
@@ -56,10 +56,10 @@ extern int iommu_attach_device(struct iommu_domain *domain,
                                struct device *dev);
 extern void iommu_detach_device(struct iommu_domain *domain,
                                 struct device *dev);
-extern int iommu_map_range(struct iommu_domain *domain, unsigned long iova,
-                           phys_addr_t paddr, size_t size, int prot);
-extern void iommu_unmap_range(struct iommu_domain *domain, unsigned long iova,
-                              size_t size);
+extern int iommu_map(struct iommu_domain *domain, unsigned long iova,
+                     phys_addr_t paddr, int gfp_order, int prot);
+extern int iommu_unmap(struct iommu_domain *domain, unsigned long iova,
+                       int gfp_order);
 extern phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain,
                                       unsigned long iova);
 extern int iommu_domain_has_cap(struct iommu_domain *domain,
@@ -96,16 +96,16 @@ static inline void iommu_detach_device(struct iommu_domain *domain,
 {
 }
 
-static inline int iommu_map_range(struct iommu_domain *domain,
-                                  unsigned long iova, phys_addr_t paddr,
-                                  size_t size, int prot)
+static inline int iommu_map(struct iommu_domain *domain, unsigned long iova,
+                            phys_addr_t paddr, int gfp_order, int prot)
 {
         return -ENODEV;
 }
 
-static inline void iommu_unmap_range(struct iommu_domain *domain,
-                                     unsigned long iova, size_t size)
+static inline int iommu_unmap(struct iommu_domain *domain, unsigned long iova,
+                              int gfp_order)
 {
+        return -ENODEV;
 }
 
 static inline phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain,
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index f58e9d836f32..56fde4364e4c 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -474,4 +474,13 @@ struct platform_device_id {
                         __attribute__((aligned(sizeof(kernel_ulong_t))));
 };
 
+struct zorro_device_id {
+        __u32 id;                       /* Device ID or ZORRO_WILDCARD */
+        kernel_ulong_t driver_data;     /* Data private to the driver */
+};
+
+#define ZORRO_WILDCARD                  (0xffffffff)    /* not official */
+
+#define ZORRO_DEVICE_MODALIAS_FMT       "zorro:i%08X"
+
 #endif /* LINUX_MOD_DEVICETABLE_H */
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 3fd5c82e0e18..fb6c91eac7e3 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -485,6 +485,7 @@ struct perf_guest_info_callbacks {
 #include <linux/ftrace.h>
 #include <linux/cpu.h>
 #include <asm/atomic.h>
+#include <asm/local.h>
 
 #define PERF_MAX_STACK_DEPTH            255
 
@@ -587,21 +588,19 @@ struct perf_mmap_data {
         struct rcu_head                 rcu_head;
 #ifdef CONFIG_PERF_USE_VMALLOC
         struct work_struct              work;
+        int                             page_order;     /* allocation order  */
 #endif
-        int                             data_order;
         int                             nr_pages;       /* nr of data pages  */
         int                             writable;       /* are we writable   */
         int                             nr_locked;      /* nr pages mlocked  */
 
         atomic_t                        poll;           /* POLL_ for wakeups */
-        atomic_t                        events;         /* event_id limit       */
 
-        atomic_long_t                   head;           /* write position    */
-        atomic_long_t                   done_head;      /* completed head    */
-
-        atomic_t                        lock;           /* concurrent writes */
-        atomic_t                        wakeup;         /* needs a wakeup    */
-        atomic_t                        lost;           /* nr records lost   */
+        local_t                         head;           /* write position    */
+        local_t                         nest;           /* nested writers    */
+        local_t                         events;         /* event limit       */
+        local_t                         wakeup;         /* wakeup stamp      */
+        local_t                         lost;           /* nr records lost   */
 
         long                            watermark;      /* wakeup watermark  */
 
@@ -728,6 +727,7 @@ struct perf_event {
         perf_overflow_handler_t         overflow_handler;
 
 #ifdef CONFIG_EVENT_TRACING
+        struct ftrace_event_call        *tp_event;
         struct event_filter             *filter;
 #endif
 
@@ -803,11 +803,12 @@ struct perf_cpu_context {
 struct perf_output_handle {
         struct perf_event               *event;
         struct perf_mmap_data           *data;
-        unsigned long                   head;
-        unsigned long                   offset;
+        unsigned long                   wakeup;
+        unsigned long                   size;
+        void                            *addr;
+        int                             page;
         int                             nmi;
         int                             sample;
-        int                             locked;
 };
 
 #ifdef CONFIG_PERF_EVENTS
@@ -993,8 +994,9 @@ static inline bool perf_paranoid_kernel(void)
 }
 
 extern void perf_event_init(void);
-extern void perf_tp_event(int event_id, u64 addr, u64 count, void *record,
-                          int entry_size, struct pt_regs *regs);
+extern void perf_tp_event(u64 addr, u64 count, void *record,
+                          int entry_size, struct pt_regs *regs,
+                          struct hlist_head *head);
 extern void perf_bp_event(struct perf_event *event, void *data);
 
 #ifndef perf_misc_flags
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index 212da17d06af..5417944d3687 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -44,12 +44,14 @@ extern int platform_get_irq_byname(struct platform_device *, const char *);
 extern int platform_add_devices(struct platform_device **, int);
 
 extern struct platform_device *platform_device_register_simple(const char *, int id,
-                                        struct resource *, unsigned int);
+                                        const struct resource *, unsigned int);
 extern struct platform_device *platform_device_register_data(struct device *,
                 const char *, int, const void *, size_t);
 
 extern struct platform_device *platform_device_alloc(const char *name, int id);
-extern int platform_device_add_resources(struct platform_device *pdev, struct resource *res, unsigned int num);
+extern int platform_device_add_resources(struct platform_device *pdev,
+                                         const struct resource *res,
+                                         unsigned int num);
 extern int platform_device_add_data(struct platform_device *pdev, const void *data, size_t size);
 extern int platform_device_add(struct platform_device *pdev);
 extern void platform_device_del(struct platform_device *pdev);
diff --git a/include/linux/rbtree.h b/include/linux/rbtree.h
index 5210a5c60877..fe1872e5b37e 100644
--- a/include/linux/rbtree.h
+++ b/include/linux/rbtree.h
@@ -110,6 +110,7 @@ struct rb_node
 struct rb_root
 {
         struct rb_node *rb_node;
+        void (*augment_cb)(struct rb_node *node);
 };
 
 
@@ -129,7 +130,9 @@ static inline void rb_set_color(struct rb_node *rb, int color)
         rb->rb_parent_color = (rb->rb_parent_color & ~1) | color;
 }
 
-#define RB_ROOT (struct rb_root) { NULL, }
+#define RB_ROOT (struct rb_root) { NULL, NULL, }
+#define RB_AUGMENT_ROOT(x)      (struct rb_root) { NULL, x}
+
 #define rb_entry(ptr, type, member) container_of(ptr, type, member)
 
 #define RB_EMPTY_ROOT(root)     ((root)->rb_node == NULL)
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 07db2feb8572..b653b4aaa8a6 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -56,8 +56,6 @@ struct rcu_head {
 };
 
 /* Exported common interfaces */
-extern void synchronize_rcu_bh(void);
-extern void synchronize_sched(void);
 extern void rcu_barrier(void);
 extern void rcu_barrier_bh(void);
 extern void rcu_barrier_sched(void);
@@ -66,8 +64,6 @@ extern int sched_expedited_torture_stats(char *page);
 
 /* Internal to kernel */
 extern void rcu_init(void);
-extern int rcu_scheduler_active;
-extern void rcu_scheduler_starting(void);
 
 #if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU)
 #include <linux/rcutree.h>
@@ -83,6 +79,14 @@ extern void rcu_scheduler_starting(void);
        (ptr)->next = NULL; (ptr)->func = NULL; \
 } while (0)
 
+static inline void init_rcu_head_on_stack(struct rcu_head *head)
+{
+}
+
+static inline void destroy_rcu_head_on_stack(struct rcu_head *head)
+{
+}
+
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
 
 extern struct lockdep_map rcu_lock_map;
@@ -106,12 +110,13 @@ extern int debug_lockdep_rcu_enabled(void);
 /**
  * rcu_read_lock_held - might we be in RCU read-side critical section?
  *
- * If CONFIG_PROVE_LOCKING is selected and enabled, returns nonzero iff in
- * an RCU read-side critical section.  In absence of CONFIG_PROVE_LOCKING,
+ * If CONFIG_DEBUG_LOCK_ALLOC is selected, returns nonzero iff in an RCU
+ * read-side critical section.  In absence of CONFIG_DEBUG_LOCK_ALLOC,
  * this assumes we are in an RCU read-side critical section unless it can
  * prove otherwise.
  *
- * Check rcu_scheduler_active to prevent false positives during boot.
+ * Check debug_lockdep_rcu_enabled() to prevent false positives during boot
+ * and while lockdep is disabled.
  */
 static inline int rcu_read_lock_held(void)
 {
@@ -129,13 +134,15 @@ extern int rcu_read_lock_bh_held(void);
 /**
  * rcu_read_lock_sched_held - might we be in RCU-sched read-side critical section?
  *
- * If CONFIG_PROVE_LOCKING is selected and enabled, returns nonzero iff in an
- * RCU-sched read-side critical section.  In absence of CONFIG_PROVE_LOCKING,
- * this assumes we are in an RCU-sched read-side critical section unless it
- * can prove otherwise.  Note that disabling of preemption (including
- * disabling irqs) counts as an RCU-sched read-side critical section.
+ * If CONFIG_DEBUG_LOCK_ALLOC is selected, returns nonzero iff in an
+ * RCU-sched read-side critical section.  In absence of
+ * CONFIG_DEBUG_LOCK_ALLOC, this assumes we are in an RCU-sched read-side
+ * critical section unless it can prove otherwise.  Note that disabling
+ * of preemption (including disabling irqs) counts as an RCU-sched
+ * read-side critical section.
  *
- * Check rcu_scheduler_active to prevent false positives during boot.
+ * Check debug_lockdep_rcu_enabled() to prevent false positives during boot
+ * and while lockdep is disabled.
  */
 #ifdef CONFIG_PREEMPT
 static inline int rcu_read_lock_sched_held(void)
@@ -177,7 +184,7 @@ static inline int rcu_read_lock_bh_held(void)
 #ifdef CONFIG_PREEMPT
 static inline int rcu_read_lock_sched_held(void)
 {
-        return !rcu_scheduler_active || preempt_count() != 0 || irqs_disabled();
+        return preempt_count() != 0 || irqs_disabled();
 }
 #else /* #ifdef CONFIG_PREEMPT */
 static inline int rcu_read_lock_sched_held(void)
@@ -190,6 +197,17 @@ static inline int rcu_read_lock_sched_held(void)
 
 #ifdef CONFIG_PROVE_RCU
 
+extern int rcu_my_thread_group_empty(void);
+
+#define __do_rcu_dereference_check(c)                                   \
+        do {                                                            \
+                static bool __warned;                                   \
+                if (debug_lockdep_rcu_enabled() && !__warned && !(c)) { \
+                        __warned = true;                                \
+                        lockdep_rcu_dereference(__FILE__, __LINE__);    \
+                }                                                       \
+        } while (0)
+
 /**
  * rcu_dereference_check - rcu_dereference with debug checking
  * @p: The pointer to read, prior to dereferencing
@@ -219,8 +237,7 @@ static inline int rcu_read_lock_sched_held(void)
  */
 #define rcu_dereference_check(p, c) \
         ({ \
-                if (debug_lockdep_rcu_enabled() && !(c)) \
-                        lockdep_rcu_dereference(__FILE__, __LINE__); \
+                __do_rcu_dereference_check(c); \
                 rcu_dereference_raw(p); \
         })
 
@@ -237,8 +254,7 @@ static inline int rcu_read_lock_sched_held(void)
  */
 #define rcu_dereference_protected(p, c) \
         ({ \
-                if (debug_lockdep_rcu_enabled() && !(c)) \
-                        lockdep_rcu_dereference(__FILE__, __LINE__); \
+                __do_rcu_dereference_check(c); \
                 (p); \
         })
 
diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h
index 0006b2df00e1..e2e893144a84 100644
--- a/include/linux/rcutiny.h
+++ b/include/linux/rcutiny.h
@@ -29,6 +29,10 @@
 
 void rcu_sched_qs(int cpu);
 void rcu_bh_qs(int cpu);
+static inline void rcu_note_context_switch(int cpu)
+{
+        rcu_sched_qs(cpu);
+}
 
 #define __rcu_read_lock()       preempt_disable()
 #define __rcu_read_unlock()     preempt_enable()
@@ -72,7 +76,17 @@ static inline void rcu_sched_force_quiescent_state(void)
 {
 }
 
-#define synchronize_rcu synchronize_sched
+extern void synchronize_sched(void);
+
+static inline void synchronize_rcu(void)
+{
+        synchronize_sched();
+}
+
+static inline void synchronize_rcu_bh(void)
+{
+        synchronize_sched();
+}
 
 static inline void synchronize_rcu_expedited(void)
 {
@@ -112,4 +126,17 @@ static inline int rcu_preempt_depth(void)
         return 0;
 }
 
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+
+extern int rcu_scheduler_active __read_mostly;
+extern void rcu_scheduler_starting(void);
+
+#else /* #ifdef CONFIG_DEBUG_LOCK_ALLOC */
+
+static inline void rcu_scheduler_starting(void)
+{
+}
+
+#endif /* #else #ifdef CONFIG_DEBUG_LOCK_ALLOC */
+
 #endif /* __LINUX_RCUTINY_H */
diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h
index 24e467e526b8..c0ed1c056f29 100644
--- a/include/linux/rcutree.h
+++ b/include/linux/rcutree.h
@@ -34,6 +34,7 @@ struct notifier_block;
 
 extern void rcu_sched_qs(int cpu);
 extern void rcu_bh_qs(int cpu);
+extern void rcu_note_context_switch(int cpu);
 extern int rcu_needs_cpu(int cpu);
 
 #ifdef CONFIG_TREE_PREEMPT_RCU
@@ -85,6 +86,8 @@ static inline void __rcu_read_unlock_bh(void)
 
 extern void call_rcu_sched(struct rcu_head *head,
                            void (*func)(struct rcu_head *rcu));
+extern void synchronize_rcu_bh(void);
+extern void synchronize_sched(void);
 extern void synchronize_rcu_expedited(void);
 
 static inline void synchronize_rcu_bh_expedited(void)
@@ -119,4 +122,7 @@ static inline int rcu_blocking_is_gp(void)
         return num_online_cpus() == 1;
 }
 
+extern void rcu_scheduler_starting(void);
+extern int rcu_scheduler_active __read_mostly;
+
 #endif /* __LINUX_RCUTREE_H */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 2a5b146fbaf9..b55e988988b5 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1493,7 +1493,6 @@ struct task_struct {
         /* bitmask of trace recursion */
         unsigned long trace_recursion;
 #endif /* CONFIG_TRACING */
-        unsigned long stack_start;
 #ifdef CONFIG_CGROUP_MEM_RES_CTLR /* memcg uses this to do batch job */
         struct memcg_batch_info {
                 int do_batch;   /* incremented when batch uncharge started */
diff --git a/include/linux/srcu.h b/include/linux/srcu.h
index 4d5ecb222af9..4d5d2f546dbf 100644
--- a/include/linux/srcu.h
+++ b/include/linux/srcu.h
@@ -27,6 +27,8 @@
 #ifndef _LINUX_SRCU_H
 #define _LINUX_SRCU_H
 
+#include <linux/mutex.h>
+
 struct srcu_struct_array {
         int c[2];
 };
@@ -84,8 +86,8 @@ long srcu_batches_completed(struct srcu_struct *sp);
 /**
  * srcu_read_lock_held - might we be in SRCU read-side critical section?
  *
- * If CONFIG_PROVE_LOCKING is selected and enabled, returns nonzero iff in
- * an SRCU read-side critical section.  In absence of CONFIG_PROVE_LOCKING,
+ * If CONFIG_DEBUG_LOCK_ALLOC is selected, returns nonzero iff in an SRCU
+ * read-side critical section.  In absence of CONFIG_DEBUG_LOCK_ALLOC,
  * this assumes we are in an SRCU read-side critical section unless it can
  * prove otherwise.
  */
diff --git a/include/linux/types.h b/include/linux/types.h
index c42724f8c802..23d237a075e2 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -188,12 +188,12 @@ typedef u32 phys_addr_t;
 typedef phys_addr_t resource_size_t;
 
 typedef struct {
-        volatile int counter;
+        int counter;
 } atomic_t;
 
 #ifdef CONFIG_64BIT
 typedef struct {
-        volatile long counter;
+        long counter;
 } atomic64_t;
 #endif
 
diff --git a/include/linux/zorro.h b/include/linux/zorro.h
index 913bfc226dda..7bf9db525e9e 100644
--- a/include/linux/zorro.h
+++ b/include/linux/zorro.h
@@ -38,8 +38,6 @@
 typedef __u32 zorro_id;
 
 
-#define ZORRO_WILDCARD          (0xffffffff)    /* not official */
-
 /* Include the ID list */
 #include <linux/zorro_ids.h>
 
@@ -116,6 +114,7 @@ struct ConfigDev {
 
 #include <linux/init.h>
 #include <linux/ioport.h>
+#include <linux/mod_devicetable.h>
 
 #include <asm/zorro.h>
 
@@ -142,29 +141,10 @@ struct zorro_dev {
      *  Zorro bus
      */
 
-struct zorro_bus {
-    struct list_head devices;           /* list of devices on this bus */
-    unsigned int num_resources;         /* number of resources */
-    struct resource resources[4];       /* address space routed to this bus */
-    struct device dev;
-    char name[10];
-};
-
-extern struct zorro_bus zorro_bus;      /* single Zorro bus */
 extern struct bus_type zorro_bus_type;
 
 
     /*
-     *  Zorro device IDs
-     */
-
-struct zorro_device_id {
-        zorro_id id;                    /* Device ID or ZORRO_WILDCARD */
-        unsigned long driver_data;      /* Data private to the driver */
-};
-
-
-    /*
      *  Zorro device drivers
      */