Merge branch 'tip/perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/core

41 files changed, 268 insertions, 117 deletions

diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index baacd98e7cc..4de84ce3a92 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -377,9 +377,6 @@ struct acpi_pci_root {
 
         u32 osc_support_set;    /* _OSC state of support bits */
         u32 osc_control_set;    /* _OSC state of control bits */
-        u32 osc_control_qry;    /* the latest _OSC query result */
-
-        u32 osc_queried:1;      /* has _OSC control been queried? */
 };
 
 /* helper */
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index c7376bf80b0..8ca18e26d7e 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -16,15 +16,27 @@
  * While the GPIO programming interface defines valid GPIO numbers
  * to be in the range 0..MAX_INT, this library restricts them to the
  * smaller range 0..ARCH_NR_GPIOS-1.
+ *
+ * ARCH_NR_GPIOS is somewhat arbitrary; it usually reflects the sum of
+ * builtin/SoC GPIOs plus a number of GPIOs on expanders; the latter is
+ * actually an estimate of a board-specific value.
  */
 
 #ifndef ARCH_NR_GPIOS
 #define ARCH_NR_GPIOS           256
 #endif
 
+/*
+ * "valid" GPIO numbers are nonnegative and may be passed to
+ * setup routines like gpio_request().  only some valid numbers
+ * can successfully be requested and used.
+ *
+ * Invalid GPIO numbers are useful for indicating no-such-GPIO in
+ * platform data and other tables.
+ */
+
 static inline int gpio_is_valid(int number)
 {
-        /* only some non-negative numbers are valid */
         return ((unsigned)number) < ARCH_NR_GPIOS;
 }
 
diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h
index b5043a9890d..08923b68476 100644
--- a/include/asm-generic/percpu.h
+++ b/include/asm-generic/percpu.h
@@ -70,11 +70,16 @@ extern void setup_per_cpu_areas(void);
 
 #else /* ! SMP */
 
-#define per_cpu(var, cpu)                       (*((void)(cpu), &(var)))
-#define __get_cpu_var(var)                      (var)
-#define __raw_get_cpu_var(var)                  (var)
-#define this_cpu_ptr(ptr) per_cpu_ptr(ptr, 0)
-#define __this_cpu_ptr(ptr) this_cpu_ptr(ptr)
+#define VERIFY_PERCPU_PTR(__p) ({                       \
+        __verify_pcpu_ptr((__p));                       \
+        (typeof(*(__p)) __kernel __force *)(__p);       \
+})
+
+#define per_cpu(var, cpu)       (*((void)(cpu), VERIFY_PERCPU_PTR(&(var))))
+#define __get_cpu_var(var)      (*VERIFY_PERCPU_PTR(&(var)))
+#define __raw_get_cpu_var(var)  (*VERIFY_PERCPU_PTR(&(var)))
+#define this_cpu_ptr(ptr)       per_cpu_ptr(ptr, 0)
+#define __this_cpu_ptr(ptr)     this_cpu_ptr(ptr)
 
 #endif  /* SMP */
 
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index ccf94dc5acd..c227757feb0 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -304,8 +304,8 @@ acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
                                 OSC_PCI_EXPRESS_PME_CONTROL |           \
                                 OSC_PCI_EXPRESS_AER_CONTROL |           \
                                 OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL)
-
-extern acpi_status acpi_pci_osc_control_set(acpi_handle handle, u32 flags);
+extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
+                                             u32 *mask, u32 req);
 extern void acpi_early_init(void);
 
 #else   /* !CONFIG_ACPI */
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index ed3e92e41c6..0c991023ee4 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -578,7 +578,12 @@ struct task_struct *cgroup_iter_next(struct cgroup *cgrp,
 void cgroup_iter_end(struct cgroup *cgrp, struct cgroup_iter *it);
 int cgroup_scan_tasks(struct cgroup_scanner *scan);
 int cgroup_attach_task(struct cgroup *, struct task_struct *);
-int cgroup_attach_task_current_cg(struct task_struct *);
+int cgroup_attach_task_all(struct task_struct *from, struct task_struct *);
+
+static inline int cgroup_attach_task_current_cg(struct task_struct *tsk)
+{
+        return cgroup_attach_task_all(current, tsk);
+}
 
 /*
  * CSS ID is ID for cgroup_subsys_state structs under subsys. This only works
@@ -636,6 +641,11 @@ static inline int cgroupstats_build(struct cgroupstats *stats,
 }
 
 /* No cgroups - nothing to do */
+static inline int cgroup_attach_task_all(struct task_struct *from,
+                                         struct task_struct *t)
+{
+        return 0;
+}
 static inline int cgroup_attach_task_current_cg(struct task_struct *t)
 {
         return 0;
diff --git a/include/linux/elevator.h b/include/linux/elevator.h
index 2c958f4fce1..926b50322a4 100644
--- a/include/linux/elevator.h
+++ b/include/linux/elevator.h
@@ -136,6 +136,7 @@ extern ssize_t elv_iosched_store(struct request_queue *, const char *, size_t);
 
 extern int elevator_init(struct request_queue *, char *);
 extern void elevator_exit(struct elevator_queue *);
+extern int elevator_change(struct request_queue *, const char *);
 extern int elv_rq_merge_ok(struct request *, struct bio *);
 
 /*
diff --git a/include/linux/fanotify.h b/include/linux/fanotify.h
index f0949a57ca9..63531a6b4d2 100644
--- a/include/linux/fanotify.h
+++ b/include/linux/fanotify.h
@@ -65,14 +65,14 @@
                                  FAN_ALL_PERM_EVENTS |\
                                  FAN_Q_OVERFLOW)
 
-#define FANOTIFY_METADATA_VERSION       1
+#define FANOTIFY_METADATA_VERSION       2
 
 struct fanotify_event_metadata {
         __u32 event_len;
         __u32 vers;
-        __s32 fd;
         __u64 mask;
-        __s64 pid;
+        __s32 fd;
+        __s32 pid;
 } __attribute__ ((packed));
 
 struct fanotify_response {
@@ -95,11 +95,4 @@ struct fanotify_response {
                                 (long)(meta)->event_len >= (long)FAN_EVENT_METADATA_LEN && \
                                 (long)(meta)->event_len <= (long)(len))
 
-#ifdef __KERNEL__
-
-struct fanotify_wait {
-        struct fsnotify_event *event;
-        __s32 fd;
-};
-#endif /* __KERNEL__ */
 #endif /* _LINUX_FANOTIFY_H */
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
index ed36fb57c42..e40190d1687 100644
--- a/include/linux/fsnotify_backend.h
+++ b/include/linux/fsnotify_backend.h
@@ -156,6 +156,7 @@ struct fsnotify_group {
                         struct mutex access_mutex;
                         struct list_head access_list;
                         wait_queue_head_t access_waitq;
+                        bool bypass_perm; /* protected by access_mutex */
 #endif /* CONFIG_FANOTIFY_ACCESS_PERMISSIONS */
                         int f_flags;
                 } fanotify_data;
diff --git a/include/linux/gpio.h b/include/linux/gpio.h
index 03f616b78cf..e41f7dd1ae6 100644
--- a/include/linux/gpio.h
+++ b/include/linux/gpio.h
@@ -13,6 +13,7 @@
 #include <linux/errno.h>
 
 struct device;
+struct gpio_chip;
 
 /*
  * Some platforms don't support the GPIO programming interface.
diff --git a/include/linux/i2c/sx150x.h b/include/linux/i2c/sx150x.h
index ee3049cb9ba..52baa79d69a 100644
--- a/include/linux/i2c/sx150x.h
+++ b/include/linux/i2c/sx150x.h
@@ -63,6 +63,9 @@
  *            IRQ lines will appear.  Similarly to gpio_base, the expander
  *            will create a block of irqs beginning at this number.
  *            This value is ignored if irq_summary is < 0.
+ * @reset_during_probe: If set to true, the driver will trigger a full
+ *                      reset of the chip at the beginning of the probe
+ *                      in order to place it in a known state.
  */
 struct sx150x_platform_data {
         unsigned gpio_base;
@@ -73,6 +76,7 @@ struct sx150x_platform_data {
         u16      io_polarity;
         int      irq_summary;
         unsigned irq_base;
+        bool     reset_during_probe;
 };
 
 #endif /* __LINUX_I2C_SX150X_H */
diff --git a/include/linux/intel-gtt.h b/include/linux/intel-gtt.h
new file mode 100644
index 00000000000..1d19ab2afa3
--- /dev/null
+++ b/include/linux/intel-gtt.h
@@ -0,0 +1,20 @@
+/*
+ * Common Intel AGPGART and GTT definitions.
+ */
+#ifndef _INTEL_GTT_H
+#define _INTEL_GTT_H
+
+#include <linux/agp_backend.h>
+
+/* This is for Intel only GTT controls.
+ *
+ * Sandybridge: AGP_USER_CACHED_MEMORY default to LLC only
+ */
+
+#define AGP_USER_CACHED_MEMORY_LLC_MLC (AGP_USER_TYPES + 2)
+#define AGP_USER_UNCACHED_MEMORY (AGP_USER_TYPES + 4)
+
+/* flag for GFDT type */
+#define AGP_USER_CACHED_MEMORY_GFDT (1 << 3)
+
+#endif
diff --git a/include/linux/io-mapping.h b/include/linux/io-mapping.h
index 0a6b3d5c490..7fb59279373 100644
--- a/include/linux/io-mapping.h
+++ b/include/linux/io-mapping.h
@@ -79,7 +79,7 @@ io_mapping_free(struct io_mapping *mapping)
 }
 
 /* Atomic map/unmap */
-static inline void *
+static inline void __iomem *
 io_mapping_map_atomic_wc(struct io_mapping *mapping,
                          unsigned long offset,
                          int slot)
@@ -94,12 +94,12 @@ io_mapping_map_atomic_wc(struct io_mapping *mapping,
 }
 
 static inline void
-io_mapping_unmap_atomic(void *vaddr, int slot)
+io_mapping_unmap_atomic(void __iomem *vaddr, int slot)
 {
         iounmap_atomic(vaddr, slot);
 }
 
-static inline void *
+static inline void __iomem *
 io_mapping_map_wc(struct io_mapping *mapping, unsigned long offset)
 {
         resource_size_t phys_addr;
@@ -111,7 +111,7 @@ io_mapping_map_wc(struct io_mapping *mapping, unsigned long offset)
 }
 
 static inline void
-io_mapping_unmap(void *vaddr)
+io_mapping_unmap(void __iomem *vaddr)
 {
         iounmap(vaddr);
 }
@@ -125,38 +125,38 @@ struct io_mapping;
 static inline struct io_mapping *
 io_mapping_create_wc(resource_size_t base, unsigned long size)
 {
-        return (struct io_mapping *) ioremap_wc(base, size);
+        return (struct io_mapping __force *) ioremap_wc(base, size);
 }
 
 static inline void
 io_mapping_free(struct io_mapping *mapping)
 {
-        iounmap(mapping);
+        iounmap((void __force __iomem *) mapping);
 }
 
 /* Atomic map/unmap */
-static inline void *
+static inline void __iomem *
 io_mapping_map_atomic_wc(struct io_mapping *mapping,
                          unsigned long offset,
                          int slot)
 {
-        return ((char *) mapping) + offset;
+        return ((char __force __iomem *) mapping) + offset;
 }
 
 static inline void
-io_mapping_unmap_atomic(void *vaddr, int slot)
+io_mapping_unmap_atomic(void __iomem *vaddr, int slot)
 {
 }
 
 /* Non-atomic map/unmap */
-static inline void *
+static inline void __iomem *
 io_mapping_map_wc(struct io_mapping *mapping, unsigned long offset)
 {
-        return ((char *) mapping) + offset;
+        return ((char __force __iomem *) mapping) + offset;
 }
 
 static inline void
-io_mapping_unmap(void *vaddr)
+io_mapping_unmap(void __iomem *vaddr)
 {
 }
 
diff --git a/include/linux/kfifo.h b/include/linux/kfifo.h
index 4aa95f203f3..62dbee554f6 100644
--- a/include/linux/kfifo.h
+++ b/include/linux/kfifo.h
@@ -214,7 +214,7 @@ __kfifo_must_check_helper(unsigned int val)
  */
 #define kfifo_reset(fifo) \
 (void)({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         __tmp->kfifo.in = __tmp->kfifo.out = 0; \
 })
 
@@ -228,7 +228,7 @@ __kfifo_must_check_helper(unsigned int val)
  */
 #define kfifo_reset_out(fifo)   \
 (void)({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         __tmp->kfifo.out = __tmp->kfifo.in; \
 })
 
@@ -238,7 +238,7 @@ __kfifo_must_check_helper(unsigned int val)
  */
 #define kfifo_len(fifo) \
 ({ \
-        typeof(fifo + 1) __tmpl = (fifo); \
+        typeof((fifo) + 1) __tmpl = (fifo); \
         __tmpl->kfifo.in - __tmpl->kfifo.out; \
 })
 
@@ -248,7 +248,7 @@ __kfifo_must_check_helper(unsigned int val)
  */
 #define kfifo_is_empty(fifo) \
 ({ \
-        typeof(fifo + 1) __tmpq = (fifo); \
+        typeof((fifo) + 1) __tmpq = (fifo); \
         __tmpq->kfifo.in == __tmpq->kfifo.out; \
 })
 
@@ -258,7 +258,7 @@ __kfifo_must_check_helper(unsigned int val)
  */
 #define kfifo_is_full(fifo) \
 ({ \
-        typeof(fifo + 1) __tmpq = (fifo); \
+        typeof((fifo) + 1) __tmpq = (fifo); \
         kfifo_len(__tmpq) > __tmpq->kfifo.mask; \
 })
 
@@ -269,7 +269,7 @@ __kfifo_must_check_helper(unsigned int val)
 #define kfifo_avail(fifo) \
 __kfifo_must_check_helper( \
 ({ \
-        typeof(fifo + 1) __tmpq = (fifo); \
+        typeof((fifo) + 1) __tmpq = (fifo); \
         const size_t __recsize = sizeof(*__tmpq->rectype); \
         unsigned int __avail = kfifo_size(__tmpq) - kfifo_len(__tmpq); \
         (__recsize) ? ((__avail <= __recsize) ? 0 : \
@@ -284,7 +284,7 @@ __kfifo_must_check_helper( \
  */
 #define kfifo_skip(fifo) \
 (void)({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         const size_t __recsize = sizeof(*__tmp->rectype); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
         if (__recsize) \
@@ -302,7 +302,7 @@ __kfifo_must_check_helper( \
 #define kfifo_peek_len(fifo) \
 __kfifo_must_check_helper( \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         const size_t __recsize = sizeof(*__tmp->rectype); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
         (!__recsize) ? kfifo_len(__tmp) * sizeof(*__tmp->type) : \
@@ -325,7 +325,7 @@ __kfifo_must_check_helper( \
 #define kfifo_alloc(fifo, size, gfp_mask) \
 __kfifo_must_check_helper( \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
         __is_kfifo_ptr(__tmp) ? \
         __kfifo_alloc(__kfifo, size, sizeof(*__tmp->type), gfp_mask) : \
@@ -339,7 +339,7 @@ __kfifo_must_check_helper( \
  */
 #define kfifo_free(fifo) \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
         if (__is_kfifo_ptr(__tmp)) \
                 __kfifo_free(__kfifo); \
@@ -358,7 +358,7 @@ __kfifo_must_check_helper( \
  */
 #define kfifo_init(fifo, buffer, size) \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
         __is_kfifo_ptr(__tmp) ? \
         __kfifo_init(__kfifo, buffer, size, sizeof(*__tmp->type)) : \
@@ -379,8 +379,8 @@ __kfifo_must_check_helper( \
  */
 #define kfifo_put(fifo, val) \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
-        typeof(val + 1) __val = (val); \
+        typeof((fifo) + 1) __tmp = (fifo); \
+        typeof((val) + 1) __val = (val); \
         unsigned int __ret; \
         const size_t __recsize = sizeof(*__tmp->rectype); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
@@ -421,8 +421,8 @@ __kfifo_must_check_helper( \
 #define kfifo_get(fifo, val) \
 __kfifo_must_check_helper( \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
-        typeof(val + 1) __val = (val); \
+        typeof((fifo) + 1) __tmp = (fifo); \
+        typeof((val) + 1) __val = (val); \
         unsigned int __ret; \
         const size_t __recsize = sizeof(*__tmp->rectype); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
@@ -462,8 +462,8 @@ __kfifo_must_check_helper( \
 #define kfifo_peek(fifo, val) \
 __kfifo_must_check_helper( \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
-        typeof(val + 1) __val = (val); \
+        typeof((fifo) + 1) __tmp = (fifo); \
+        typeof((val) + 1) __val = (val); \
         unsigned int __ret; \
         const size_t __recsize = sizeof(*__tmp->rectype); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
@@ -501,8 +501,8 @@ __kfifo_must_check_helper( \
  */
 #define kfifo_in(fifo, buf, n) \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
-        typeof(buf + 1) __buf = (buf); \
+        typeof((fifo) + 1) __tmp = (fifo); \
+        typeof((buf) + 1) __buf = (buf); \
         unsigned long __n = (n); \
         const size_t __recsize = sizeof(*__tmp->rectype); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
@@ -554,8 +554,8 @@ __kfifo_must_check_helper( \
 #define kfifo_out(fifo, buf, n) \
 __kfifo_must_check_helper( \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
-        typeof(buf + 1) __buf = (buf); \
+        typeof((fifo) + 1) __tmp = (fifo); \
+        typeof((buf) + 1) __buf = (buf); \
         unsigned long __n = (n); \
         const size_t __recsize = sizeof(*__tmp->rectype); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
@@ -611,7 +611,7 @@ __kfifo_must_check_helper( \
 #define kfifo_from_user(fifo, from, len, copied) \
 __kfifo_must_check_helper( \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         const void __user *__from = (from); \
         unsigned int __len = (len); \
         unsigned int *__copied = (copied); \
@@ -639,7 +639,7 @@ __kfifo_must_check_helper( \
 #define kfifo_to_user(fifo, to, len, copied) \
 __kfifo_must_check_helper( \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         void __user *__to = (to); \
         unsigned int __len = (len); \
         unsigned int *__copied = (copied); \
@@ -666,7 +666,7 @@ __kfifo_must_check_helper( \
  */
 #define kfifo_dma_in_prepare(fifo, sgl, nents, len) \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         struct scatterlist *__sgl = (sgl); \
         int __nents = (nents); \
         unsigned int __len = (len); \
@@ -690,7 +690,7 @@ __kfifo_must_check_helper( \
  */
 #define kfifo_dma_in_finish(fifo, len) \
 (void)({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         unsigned int __len = (len); \
         const size_t __recsize = sizeof(*__tmp->rectype); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
@@ -717,7 +717,7 @@ __kfifo_must_check_helper( \
  */
 #define kfifo_dma_out_prepare(fifo, sgl, nents, len) \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo);  \
         struct scatterlist *__sgl = (sgl); \
         int __nents = (nents); \
         unsigned int __len = (len); \
@@ -741,7 +741,7 @@ __kfifo_must_check_helper( \
  */
 #define kfifo_dma_out_finish(fifo, len) \
 (void)({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         unsigned int __len = (len); \
         const size_t __recsize = sizeof(*__tmp->rectype); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
@@ -766,8 +766,8 @@ __kfifo_must_check_helper( \
 #define kfifo_out_peek(fifo, buf, n) \
 __kfifo_must_check_helper( \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
-        typeof(buf + 1) __buf = (buf); \
+        typeof((fifo) + 1) __tmp = (fifo); \
+        typeof((buf) + 1) __buf = (buf); \
         unsigned long __n = (n); \
         const size_t __recsize = sizeof(*__tmp->rectype); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
diff --git a/include/linux/ksm.h b/include/linux/ksm.h
index 74d691ee912..3319a696762 100644
--- a/include/linux/ksm.h
+++ b/include/linux/ksm.h
@@ -16,6 +16,9 @@
 struct stable_node;
 struct mem_cgroup;
 
+struct page *ksm_does_need_to_copy(struct page *page,
+                        struct vm_area_struct *vma, unsigned long address);
+
 #ifdef CONFIG_KSM
 int ksm_madvise(struct vm_area_struct *vma, unsigned long start,
                 unsigned long end, int advice, unsigned long *vm_flags);
@@ -70,19 +73,14 @@ static inline void set_page_stable_node(struct page *page,
  * We'd like to make this conditional on vma->vm_flags & VM_MERGEABLE,
  * but what if the vma was unmerged while the page was swapped out?
  */
-struct page *ksm_does_need_to_copy(struct page *page,
-                        struct vm_area_struct *vma, unsigned long address);
-static inline struct page *ksm_might_need_to_copy(struct page *page,
+static inline int ksm_might_need_to_copy(struct page *page,
                         struct vm_area_struct *vma, unsigned long address)
 {
         struct anon_vma *anon_vma = page_anon_vma(page);
 
-        if (!anon_vma ||
-            (anon_vma->root == vma->anon_vma->root &&
-             page->index == linear_page_index(vma, address)))
-                return page;
-
-        return ksm_does_need_to_copy(page, vma, address);
+        return anon_vma &&
+                (anon_vma->root != vma->anon_vma->root ||
+                 page->index != linear_page_index(vma, address));
 }
 
 int page_referenced_ksm(struct page *page,
@@ -115,10 +113,10 @@ static inline int ksm_madvise(struct vm_area_struct *vma, unsigned long start,
         return 0;
 }
 
-static inline struct page *ksm_might_need_to_copy(struct page *page,
+static inline int ksm_might_need_to_copy(struct page *page,
                         struct vm_area_struct *vma, unsigned long address)
 {
-        return page;
+        return 0;
 }
 
 static inline int page_referenced_ksm(struct page *page,
diff --git a/include/linux/lglock.h b/include/linux/lglock.h
index b288cb713b9..f549056fb20 100644
--- a/include/linux/lglock.h
+++ b/include/linux/lglock.h
@@ -150,7 +150,7 @@
         int i;                                                          \
         preempt_disable();                                              \
         rwlock_acquire(&name##_lock_dep_map, 0, 0, _RET_IP_);           \
-        for_each_online_cpu(i) {                                        \
+        for_each_possible_cpu(i) {                                      \
                 arch_spinlock_t *lock;                                  \
                 lock = &per_cpu(name##_lock, i);                        \
                 arch_spin_lock(lock);                                   \
@@ -161,7 +161,7 @@
  void name##_global_unlock(void) {                                      \
         int i;                                                          \
         rwlock_release(&name##_lock_dep_map, 1, _RET_IP_);              \
-        for_each_online_cpu(i) {                                        \
+        for_each_possible_cpu(i) {                                      \
                 arch_spinlock_t *lock;                                  \
                 lock = &per_cpu(name##_lock, i);                        \
                 arch_spin_unlock(lock);                                 \
diff --git a/include/linux/libata.h b/include/linux/libata.h
index f010f18a0f8..45fb2967b66 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -335,6 +335,7 @@ enum {
         ATA_EHI_HOTPLUGGED      = (1 << 0),  /* could have been hotplugged */
         ATA_EHI_NO_AUTOPSY      = (1 << 2),  /* no autopsy */
         ATA_EHI_QUIET           = (1 << 3),  /* be quiet */
+        ATA_EHI_NO_RECOVERY     = (1 << 4),  /* no recovery */
 
         ATA_EHI_DID_SOFTRESET   = (1 << 16), /* already soft-reset this port */
         ATA_EHI_DID_HARDRESET   = (1 << 17), /* already soft-reset this port */
@@ -723,6 +724,7 @@ struct ata_port {
         struct ata_ioports      ioaddr; /* ATA cmd/ctl/dma register blocks */
         u8                      ctl;    /* cache of ATA control register */
         u8                      last_ctl;       /* Cache last written value */
+        struct ata_link*        sff_pio_task_link; /* link currently used */
         struct delayed_work     sff_pio_task;
 #ifdef CONFIG_ATA_BMDMA
         struct ata_bmdma_prd    *bmdma_prd;     /* BMDMA SG list */
@@ -1594,7 +1596,7 @@ extern void ata_sff_irq_on(struct ata_port *ap);
 extern void ata_sff_irq_clear(struct ata_port *ap);
 extern int ata_sff_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc,
                             u8 status, int in_wq);
-extern void ata_sff_queue_pio_task(struct ata_port *ap, unsigned long delay);
+extern void ata_sff_queue_pio_task(struct ata_link *link, unsigned long delay);
 extern unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc);
 extern bool ata_sff_qc_fill_rtf(struct ata_queued_cmd *qc);
 extern unsigned int ata_sff_port_intr(struct ata_port *ap,
diff --git a/include/linux/miscdevice.h b/include/linux/miscdevice.h
index bafffc73790..18fd13028ba 100644
--- a/include/linux/miscdevice.h
+++ b/include/linux/miscdevice.h
@@ -33,6 +33,7 @@
 #define MWAVE_MINOR             219     /* ACP/Mwave Modem */
 #define MPT_MINOR               220
 #define MPT2SAS_MINOR           221
+#define UINPUT_MINOR            223
 #define HPET_MINOR              228
 #define FUSE_MINOR              229
 #define KVM_MINOR               232
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 831c693416b..74949fbef8c 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -864,6 +864,12 @@ int set_page_dirty(struct page *page);
 int set_page_dirty_lock(struct page *page);
 int clear_page_dirty_for_io(struct page *page);
 
+/* Is the vma a continuation of the stack vma above it? */
+static inline int vma_stack_continue(struct vm_area_struct *vma, unsigned long addr)
+{
+        return vma && (vma->vm_end == addr) && (vma->vm_flags & VM_GROWSDOWN);
+}
+
 extern unsigned long move_page_tables(struct vm_area_struct *vma,
                 unsigned long old_addr, struct vm_area_struct *new_vma,
                 unsigned long new_addr, unsigned long len);
@@ -1363,7 +1369,15 @@ static inline unsigned long vma_pages(struct vm_area_struct *vma)
         return (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
 }
 
+#ifdef CONFIG_MMU
 pgprot_t vm_get_page_prot(unsigned long vm_flags);
+#else
+static inline pgprot_t vm_get_page_prot(unsigned long vm_flags)
+{
+        return __pgprot(0);
+}
+#endif
+
 struct vm_area_struct *find_extend_vma(struct mm_struct *, unsigned long addr);
 int remap_pfn_range(struct vm_area_struct *, unsigned long addr,
                         unsigned long pfn, unsigned long size, pgprot_t);
diff --git a/include/linux/mmc/sdio.h b/include/linux/mmc/sdio.h
index 329a8faa6e3..245cdacee54 100644
--- a/include/linux/mmc/sdio.h
+++ b/include/linux/mmc/sdio.h
@@ -38,6 +38,8 @@
  *      [8:0] Byte/block count
  */
 
+#define R4_MEMORY_PRESENT (1 << 27)
+
 /*
   SDIO status in R5
   Type
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 6e6e62648a4..3984c4eb41f 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -284,6 +284,13 @@ struct zone {
         unsigned long watermark[NR_WMARK];
 
         /*
+         * When free pages are below this point, additional steps are taken
+         * when reading the number of free pages to avoid per-cpu counter
+         * drift allowing watermarks to be breached
+         */
+        unsigned long percpu_drift_mark;
+
+        /*
          * We don't know if the memory that we're going to allocate will be freeable
          * or/and it will be released eventually, so to avoid totally wasting several
          * GB of ram we must reserve some of the lower zone memory (otherwise we risk
@@ -441,6 +448,12 @@ static inline int zone_is_oom_locked(const struct zone *zone)
         return test_bit(ZONE_OOM_LOCKED, &zone->flags);
 }
 
+#ifdef CONFIG_SMP
+unsigned long zone_nr_free_pages(struct zone *zone);
+#else
+#define zone_nr_free_pages(zone) zone_page_state(zone, NR_FREE_PAGES)
+#endif /* CONFIG_SMP */
+
 /*
  * The "priority" of VM scanning is how much of the queues we will scan in one
  * go. A value of 12 for DEF_PRIORITY implies that we will scan 1/4096th of the
diff --git a/include/linux/mutex.h b/include/linux/mutex.h
index 878cab4f5fc..f363bc8fdc7 100644
--- a/include/linux/mutex.h
+++ b/include/linux/mutex.h
@@ -78,6 +78,14 @@ struct mutex_waiter {
 # include <linux/mutex-debug.h>
 #else
 # define __DEBUG_MUTEX_INITIALIZER(lockname)
+/**
+ * mutex_init - initialize the mutex
+ * @mutex: the mutex to be initialized
+ *
+ * Initialize the mutex to unlocked state.
+ *
+ * It is not allowed to initialize an already locked mutex.
+ */
 # define mutex_init(mutex) \
 do {                                                    \
         static struct lock_class_key __key;             \
diff --git a/include/linux/pci.h b/include/linux/pci.h
index b1d17956a15..c8d95e369ff 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1214,6 +1214,9 @@ static inline struct pci_dev *pci_get_bus_and_slot(unsigned int bus,
                                                 unsigned int devfn)
 { return NULL; }
 
+static inline int pci_domain_nr(struct pci_bus *bus)
+{ return 0; }
+
 #define dev_is_pci(d) (false)
 #define dev_is_pf(d) (false)
 #define dev_num_vf(d) (0)
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index f6a3b2d36ca..10d33309e9a 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2300,6 +2300,8 @@
 #define PCI_DEVICE_ID_P2010             0x0079
 #define PCI_DEVICE_ID_P1020E            0x0100
 #define PCI_DEVICE_ID_P1020             0x0101
+#define PCI_DEVICE_ID_P1021E            0x0102
+#define PCI_DEVICE_ID_P1021             0x0103
 #define PCI_DEVICE_ID_P1011E            0x0108
 #define PCI_DEVICE_ID_P1011             0x0109
 #define PCI_DEVICE_ID_P1022E            0x0110
diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index b8b9084527b..49466b13c5c 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -149,7 +149,7 @@ extern void __init percpu_init_late(void);
 
 #else /* CONFIG_SMP */
 
-#define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); (ptr); })
+#define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); VERIFY_PERCPU_PTR((ptr)); })
 
 /* can't distinguish from other static vars, always false */
 static inline bool is_kernel_percpu_address(unsigned long addr)
diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index d50ba858cfe..d1a9193960f 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -274,8 +274,14 @@ static inline int dquot_alloc_space(struct inode *inode, qsize_t nr)
         int ret;
 
         ret = dquot_alloc_space_nodirty(inode, nr);
-        if (!ret)
-                mark_inode_dirty_sync(inode);
+        if (!ret) {
+                /*
+                 * Mark inode fully dirty. Since we are allocating blocks, inode
+                 * would become fully dirty soon anyway and it reportedly
+                 * reduces inode_lock contention.
+                 */
+                mark_inode_dirty(inode);
+        }
         return ret;
 }
 
diff --git a/include/linux/semaphore.h b/include/linux/semaphore.h
index 7415839ac89..5310d27abd2 100644
--- a/include/linux/semaphore.h
+++ b/include/linux/semaphore.h
@@ -26,6 +26,9 @@ struct semaphore {
         .wait_list      = LIST_HEAD_INIT((name).wait_list),             \
 }
 
+#define DEFINE_SEMAPHORE(name)  \
+        struct semaphore name = __SEMAPHORE_INITIALIZER(name, 1)
+
 #define DECLARE_MUTEX(name)     \
         struct semaphore name = __SEMAPHORE_INITIALIZER(name, 1)
 
diff --git a/include/linux/serial.h b/include/linux/serial.h
index 1ebc694a6d5..ef914061511 100644
--- a/include/linux/serial.h
+++ b/include/linux/serial.h
@@ -77,8 +77,7 @@ struct serial_struct {
 #define PORT_16654      11
 #define PORT_16850      12
 #define PORT_RSA        13      /* RSA-DV II/S card */
-#define PORT_U6_16550A  14
-#define PORT_MAX        14
+#define PORT_MAX        13
 
 #define SERIAL_IO_PORT  0
 #define SERIAL_IO_HUB6  1
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 3c2ad99fed3..563e2340091 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -44,7 +44,8 @@
 #define PORT_RM9000     16      /* PMC-Sierra RM9xxx internal UART */
 #define PORT_OCTEON     17      /* Cavium OCTEON internal UART */
 #define PORT_AR7        18      /* Texas Instruments AR7 internal UART */
-#define PORT_MAX_8250   18      /* max port ID */
+#define PORT_U6_16550A  19      /* ST-Ericsson U6xxx internal UART */
+#define PORT_MAX_8250   19      /* max port ID */
 
 /*
  * ARM specific type numbers.  These are not currently guaranteed
@@ -465,7 +466,7 @@ uart_handle_sysrq_char(struct uart_port *port, unsigned int ch)
 #ifdef SUPPORT_SYSRQ
         if (port->sysrq) {
                 if (ch && time_before(jiffies, port->sysrq)) {
-                        handle_sysrq(ch, port->state->port.tty);
+                        handle_sysrq(ch);
                         port->sysrq = 0;
                         return 1;
                 }
diff --git a/include/linux/spi/dw_spi.h b/include/linux/spi/dw_spi.h
index cc813f95a2f..c91302f3a25 100644
--- a/include/linux/spi/dw_spi.h
+++ b/include/linux/spi/dw_spi.h
@@ -14,7 +14,9 @@
 #define SPI_MODE_OFFSET                 6
 #define SPI_SCPH_OFFSET                 6
 #define SPI_SCOL_OFFSET                 7
+
 #define SPI_TMOD_OFFSET                 8
+#define SPI_TMOD_MASK                   (0x3 << SPI_TMOD_OFFSET)
 #define SPI_TMOD_TR                     0x0             /* xmit & recv */
 #define SPI_TMOD_TO                     0x1             /* xmit only */
 #define SPI_TMOD_RO                     0x2             /* recv only */
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 2fee51a11b7..7cdd63366f8 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -19,6 +19,7 @@ struct bio;
 #define SWAP_FLAG_PREFER        0x8000  /* set if swap priority specified */
 #define SWAP_FLAG_PRIO_MASK     0x7fff
 #define SWAP_FLAG_PRIO_SHIFT    0
+#define SWAP_FLAG_DISCARD       0x10000 /* discard swap cluster after use */
 
 static inline int current_is_kswapd(void)
 {
@@ -142,7 +143,7 @@ struct swap_extent {
 enum {
         SWP_USED        = (1 << 0),     /* is slot in swap_info[] used? */
         SWP_WRITEOK     = (1 << 1),     /* ok to write to this swap?    */
-        SWP_DISCARDABLE = (1 << 2),     /* blkdev supports discard */
+        SWP_DISCARDABLE = (1 << 2),     /* swapon+blkdev support discard */
         SWP_DISCARDING  = (1 << 3),     /* now discarding a free cluster */
         SWP_SOLIDSTATE  = (1 << 4),     /* blkdev seeks are cheap */
         SWP_CONTINUED   = (1 << 5),     /* swap_map has count continuation */
@@ -315,6 +316,7 @@ extern long nr_swap_pages;
 extern long total_swap_pages;
 extern void si_swapinfo(struct sysinfo *);
 extern swp_entry_t get_swap_page(void);
+extern swp_entry_t get_swap_page_of_type(int);
 extern int valid_swaphandles(swp_entry_t, unsigned long *);
 extern int add_swap_count_continuation(swp_entry_t, gfp_t);
 extern void swap_shmem_alloc(swp_entry_t);
@@ -331,13 +333,6 @@ extern int reuse_swap_page(struct page *);
 extern int try_to_free_swap(struct page *);
 struct backing_dev_info;
 
-#ifdef CONFIG_HIBERNATION
-void hibernation_freeze_swap(void);
-void hibernation_thaw_swap(void);
-swp_entry_t get_swap_for_hibernation(int type);
-void swap_free_for_hibernation(swp_entry_t val);
-#endif
-
 /* linux/mm/thrash.c */
 extern struct mm_struct *swap_token_mm;
 extern void grab_swap_token(struct mm_struct *);
diff --git a/include/linux/sysrq.h b/include/linux/sysrq.h
index 609e8ca5f53..387fa7d05c9 100644
--- a/include/linux/sysrq.h
+++ b/include/linux/sysrq.h
@@ -15,9 +15,7 @@
 #define _LINUX_SYSRQ_H
 
 #include <linux/errno.h>
-
-struct pt_regs;
-struct tty_struct;
+#include <linux/types.h>
 
 /* Possible values of bitmask for enabling sysrq functions */
 /* 0x0001 is reserved for enable everything */
@@ -31,7 +29,7 @@ struct tty_struct;
 #define SYSRQ_ENABLE_RTNICE     0x0100
 
 struct sysrq_key_op {
-        void (*handler)(int, struct tty_struct *);
+        void (*handler)(int);
         char *help_msg;
         char *action_msg;
         int enable_mask;
@@ -44,8 +42,8 @@ struct sysrq_key_op {
  * are available -- else NULL's).
  */
 
-void handle_sysrq(int key, struct tty_struct *tty);
-void __handle_sysrq(int key, struct tty_struct *tty, int check_mask);
+void handle_sysrq(int key);
+void __handle_sysrq(int key, bool check_mask);
 int register_sysrq_key(int key, struct sysrq_key_op *op);
 int unregister_sysrq_key(int key, struct sysrq_key_op *op);
 struct sysrq_key_op *__sysrq_get_key_op(int key);
@@ -54,7 +52,11 @@ int sysrq_toggle_support(int enable_mask);
 
 #else
 
-static inline void handle_sysrq(int key, struct tty_struct *tty)
+static inline void handle_sysrq(int key)
+{
+}
+
+static inline void __handle_sysrq(int key, bool check_mask)
 {
 }
 
diff --git a/include/linux/uinput.h b/include/linux/uinput.h
index 60c81da77f0..05f7fed2b17 100644
--- a/include/linux/uinput.h
+++ b/include/linux/uinput.h
@@ -37,7 +37,6 @@
 #define UINPUT_VERSION          3
 
 #ifdef __KERNEL__
-#define UINPUT_MINOR            223
 #define UINPUT_NAME             "uinput"
 #define UINPUT_BUFFER_SIZE      16
 #define UINPUT_NUM_REQUESTS     16
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index 84a4c44c208..55675b1efb2 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -342,8 +342,7 @@ extern int usb_serial_generic_submit_read_urb(struct usb_serial_port *port,
 extern void usb_serial_generic_process_read_urb(struct urb *urb);
 extern int usb_serial_generic_prepare_write_buffer(struct usb_serial_port *port,
                                                 void *dest, size_t size);
-extern int usb_serial_handle_sysrq_char(struct tty_struct *tty,
-                                        struct usb_serial_port *port,
+extern int usb_serial_handle_sysrq_char(struct usb_serial_port *port,
                                         unsigned int ch);
 extern int usb_serial_handle_break(struct usb_serial_port *port);
 
diff --git a/include/linux/vgaarb.h b/include/linux/vgaarb.h
index 6228b5b77d3..e9e1524b582 100644
--- a/include/linux/vgaarb.h
+++ b/include/linux/vgaarb.h
@@ -93,8 +93,11 @@ extern void vga_set_legacy_decoding(struct pci_dev *pdev,
  *     Nested calls are supported (a per-resource counter is maintained)
  */
 
-extern int vga_get(struct pci_dev *pdev, unsigned int rsrc,
-                                                                                        int interruptible);
+#if defined(CONFIG_VGA_ARB)
+extern int vga_get(struct pci_dev *pdev, unsigned int rsrc, int interruptible);
+#else
+static inline int vga_get(struct pci_dev *pdev, unsigned int rsrc, int interruptible) { return 0; }
+#endif
 
 /**
  *     vga_get_interruptible
@@ -131,7 +134,11 @@ static inline int vga_get_uninterruptible(struct pci_dev *pdev,
  *     are already locked by another card. It can be called in any context
  */
 
+#if defined(CONFIG_VGA_ARB)
 extern int vga_tryget(struct pci_dev *pdev, unsigned int rsrc);
+#else
+static inline int vga_tryget(struct pci_dev *pdev, unsigned int rsrc) { return 0; }
+#endif
 
 /**
  *     vga_put         - release lock on legacy VGA resources
@@ -146,7 +153,11 @@ extern int vga_tryget(struct pci_dev *pdev, unsigned int rsrc);
  *     released if the counter reaches 0.
  */
 
+#if defined(CONFIG_VGA_ARB)
 extern void vga_put(struct pci_dev *pdev, unsigned int rsrc);
+#else
+#define vga_put(pdev, rsrc)
+#endif
 
 
 /**
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index 7f43ccdc1d3..eaaea37b3b7 100644
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -170,6 +170,28 @@ static inline unsigned long zone_page_state(struct zone *zone,
         return x;
 }
 
+/*
+ * More accurate version that also considers the currently pending
+ * deltas. For that we need to loop over all cpus to find the current
+ * deltas. There is no synchronization so the result cannot be
+ * exactly accurate either.
+ */
+static inline unsigned long zone_page_state_snapshot(struct zone *zone,
+                                        enum zone_stat_item item)
+{
+        long x = atomic_long_read(&zone->vm_stat[item]);
+
+#ifdef CONFIG_SMP
+        int cpu;
+        for_each_online_cpu(cpu)
+                x += per_cpu_ptr(zone->pageset, cpu)->vm_stat_diff[item];
+
+        if (x < 0)
+                x = 0;
+#endif
+        return x;
+}
+
 extern unsigned long global_reclaimable_pages(void);
 extern unsigned long zone_reclaimable_pages(struct zone *zone);
 
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 4f9d277bcd9..f11100f9648 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -25,18 +25,20 @@ typedef void (*work_func_t)(struct work_struct *work);
 
 enum {
         WORK_STRUCT_PENDING_BIT = 0,    /* work item is pending execution */
-        WORK_STRUCT_CWQ_BIT     = 1,    /* data points to cwq */
-        WORK_STRUCT_LINKED_BIT  = 2,    /* next work is linked to this one */
+        WORK_STRUCT_DELAYED_BIT = 1,    /* work item is delayed */
+        WORK_STRUCT_CWQ_BIT     = 2,    /* data points to cwq */
+        WORK_STRUCT_LINKED_BIT  = 3,    /* next work is linked to this one */
 #ifdef CONFIG_DEBUG_OBJECTS_WORK
-        WORK_STRUCT_STATIC_BIT  = 3,    /* static initializer (debugobjects) */
-        WORK_STRUCT_COLOR_SHIFT = 4,    /* color for workqueue flushing */
+        WORK_STRUCT_STATIC_BIT  = 4,    /* static initializer (debugobjects) */
+        WORK_STRUCT_COLOR_SHIFT = 5,    /* color for workqueue flushing */
 #else
-        WORK_STRUCT_COLOR_SHIFT = 3,    /* color for workqueue flushing */
+        WORK_STRUCT_COLOR_SHIFT = 4,    /* color for workqueue flushing */
 #endif
 
         WORK_STRUCT_COLOR_BITS  = 4,
 
         WORK_STRUCT_PENDING     = 1 << WORK_STRUCT_PENDING_BIT,
+        WORK_STRUCT_DELAYED     = 1 << WORK_STRUCT_DELAYED_BIT,
         WORK_STRUCT_CWQ         = 1 << WORK_STRUCT_CWQ_BIT,
         WORK_STRUCT_LINKED      = 1 << WORK_STRUCT_LINKED_BIT,
 #ifdef CONFIG_DEBUG_OBJECTS_WORK
@@ -59,8 +61,8 @@ enum {
 
         /*
          * Reserve 7 bits off of cwq pointer w/ debugobjects turned
-         * off.  This makes cwqs aligned to 128 bytes which isn't too
-         * excessive while allowing 15 workqueue flush colors.
+         * off.  This makes cwqs aligned to 256 bytes and allows 15
+         * workqueue flush colors.
          */
         WORK_STRUCT_FLAG_BITS   = WORK_STRUCT_COLOR_SHIFT +
                                   WORK_STRUCT_COLOR_BITS,
@@ -241,6 +243,8 @@ enum {
         WQ_HIGHPRI              = 1 << 4, /* high priority */
         WQ_CPU_INTENSIVE        = 1 << 5, /* cpu instensive workqueue */
 
+        WQ_DYING                = 1 << 6, /* internal: workqueue is dying */
+
         WQ_MAX_ACTIVE           = 512,    /* I like 512, better ideas? */
         WQ_MAX_UNBOUND_PER_CPU  = 4,      /* 4 * #cpus for unbound wq */
         WQ_DFL_ACTIVE           = WQ_MAX_ACTIVE / 2,
diff --git a/include/net/cls_cgroup.h b/include/net/cls_cgroup.h
index 726cc353640..ef6c24a529e 100644
--- a/include/net/cls_cgroup.h
+++ b/include/net/cls_cgroup.h
@@ -27,11 +27,17 @@ struct cgroup_cls_state
 #ifdef CONFIG_NET_CLS_CGROUP
 static inline u32 task_cls_classid(struct task_struct *p)
 {
+        int classid;
+
         if (in_interrupt())
                 return 0;
 
-        return container_of(task_subsys_state(p, net_cls_subsys_id),
-                            struct cgroup_cls_state, css)->classid;
+        rcu_read_lock();
+        classid = container_of(task_subsys_state(p, net_cls_subsys_id),
+                               struct cgroup_cls_state, css)->classid;
+        rcu_read_unlock();
+
+        return classid;
 }
 #else
 extern int net_cls_subsys_id;
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index a4747a0f730..f976885f686 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -955,6 +955,9 @@ static inline __wsum ip_vs_check_diff2(__be16 old, __be16 new, __wsum oldsum)
         return csum_partial(diff, sizeof(diff), oldsum);
 }
 
+extern void ip_vs_update_conntrack(struct sk_buff *skb, struct ip_vs_conn *cp,
+                                   int outin);
+
 #endif /* __KERNEL__ */
 
 #endif  /* _NET_IP_VS_H */
diff --git a/include/net/sock.h b/include/net/sock.h
index ac53bfbdfe1..adab9dc5818 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -752,6 +752,7 @@ struct proto {
         /* Keeping track of sk's, looking them up, and port selection methods. */
         void                    (*hash)(struct sock *sk);
         void                    (*unhash)(struct sock *sk);
+        void                    (*rehash)(struct sock *sk);
         int                     (*get_port)(struct sock *sk, unsigned short snum);
 
         /* Keeping track of sockets in use */
diff --git a/include/net/tcp.h b/include/net/tcp.h
index df6a2eb2019..eaa9582779d 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -268,11 +268,21 @@ static inline int between(__u32 seq1, __u32 seq2, __u32 seq3)
         return seq3 - seq2 >= seq1 - seq2;
 }
 
-static inline int tcp_too_many_orphans(struct sock *sk, int num)
+static inline bool tcp_too_many_orphans(struct sock *sk, int shift)
 {
-        return (num > sysctl_tcp_max_orphans) ||
-                (sk->sk_wmem_queued > SOCK_MIN_SNDBUF &&
-                 atomic_read(&tcp_memory_allocated) > sysctl_tcp_mem[2]);
+        struct percpu_counter *ocp = sk->sk_prot->orphan_count;
+        int orphans = percpu_counter_read_positive(ocp);
+
+        if (orphans << shift > sysctl_tcp_max_orphans) {
+                orphans = percpu_counter_sum_positive(ocp);
+                if (orphans << shift > sysctl_tcp_max_orphans)
+                        return true;
+        }
+
+        if (sk->sk_wmem_queued > SOCK_MIN_SNDBUF &&
+            atomic_read(&tcp_memory_allocated) > sysctl_tcp_mem[2])
+                return true;
+        return false;
 }
 
 /* syncookies: remember time of last synqueue overflow */
diff --git a/include/net/udp.h b/include/net/udp.h
index 7abdf305da5..a184d3496b1 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -151,6 +151,7 @@ static inline void udp_lib_hash(struct sock *sk)
 }
 
 extern void udp_lib_unhash(struct sock *sk);
+extern void udp_lib_rehash(struct sock *sk, u16 new_hash);
 
 static inline void udp_lib_close(struct sock *sk, long timeout)
 {