Merge branch 'origin' into misc

30 files changed, 213 insertions, 144 deletions

diff --git a/include/acpi/acexcep.h b/include/acpi/acexcep.h
index 5958d7845bd..17714beb868 100644
--- a/include/acpi/acexcep.h
+++ b/include/acpi/acexcep.h
@@ -212,7 +212,7 @@ char const *acpi_gbl_exception_names_env[] = {
         "AE_NO_GLOBAL_LOCK",
         "AE_ABORT_METHOD",
         "AE_SAME_HANDLER",
-        "AE_WAKE_ONLY_GPE",
+        "AE_NO_HANDLER",
         "AE_OWNER_ID_LIMIT"
 };
 
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 0e4ab1fe596..1371cc99739 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -69,6 +69,7 @@ extern acpi_name acpi_gbl_trace_method_name;
 extern u32 acpi_gbl_trace_flags;
 extern u8 acpi_gbl_enable_aml_debug_object;
 extern u8 acpi_gbl_copy_dsdt_locally;
+extern u8 acpi_gbl_truncate_io_addresses;
 
 extern u32 acpi_current_gpe_count;
 extern struct acpi_table_fadt acpi_gbl_FADT;
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index bade172cad4..d55f4a7b824 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -663,10 +663,11 @@ typedef u32 acpi_event_status;
 #define ACPI_GPE_MAX                    0xFF
 #define ACPI_NUM_GPE                    256
 
-/* Actions for acpi_set_gpe */
+/* Actions for acpi_set_gpe and acpi_hw_low_set_gpe */
 
 #define ACPI_GPE_ENABLE                 0
 #define ACPI_GPE_DISABLE                1
+#define ACPI_GPE_COND_ENABLE            2
 
 /* gpe_types for acpi_enable_gpe and acpi_disable_gpe */
 
diff --git a/include/drm/ttm/ttm_page_alloc.h b/include/drm/ttm/ttm_page_alloc.h
index 8bb4de567b2..116821448c3 100644
--- a/include/drm/ttm/ttm_page_alloc.h
+++ b/include/drm/ttm/ttm_page_alloc.h
@@ -56,10 +56,6 @@ void ttm_put_pages(struct list_head *pages,
                    enum ttm_caching_state cstate);
 /**
  * Initialize pool allocator.
- *
- * Pool allocator is internaly reference counted so it can be initialized
- * multiple times but ttm_page_alloc_fini has to be called same number of
- * times.
  */
 int ttm_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages);
 /**
diff --git a/include/linux/agp_backend.h b/include/linux/agp_backend.h
index 9101ed64f80..09ea4a1e950 100644
--- a/include/linux/agp_backend.h
+++ b/include/linux/agp_backend.h
@@ -79,7 +79,6 @@ struct agp_memory {
         u32 physical;
         bool is_bound;
         bool is_flushed;
-        bool vmalloc_flag;
         /* list of agp_memory mapped to the aperture */
         struct list_head mapped_list;
         /* DMA-mapped addresses */
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index aee5f6ce166..e9aec0d099d 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -82,8 +82,6 @@ struct backing_dev_info {
         struct bdi_writeback wb;  /* default writeback info for this bdi */
         spinlock_t wb_lock;       /* protects update side of wb_list */
         struct list_head wb_list; /* the flusher threads hanging off this bdi */
-        unsigned long wb_mask;    /* bitmask of registered tasks */
-        unsigned int wb_cnt;      /* number of registered tasks */
 
         struct list_head work_list;
 
@@ -105,8 +103,8 @@ int bdi_register(struct backing_dev_info *bdi, struct device *parent,
 int bdi_register_dev(struct backing_dev_info *bdi, dev_t dev);
 void bdi_unregister(struct backing_dev_info *bdi);
 int bdi_setup_and_register(struct backing_dev_info *, char *, unsigned int);
-void bdi_start_writeback(struct backing_dev_info *bdi, struct super_block *sb,
-                                long nr_pages);
+void bdi_start_writeback(struct backing_dev_info *bdi, long nr_pages);
+void bdi_start_background_writeback(struct backing_dev_info *bdi);
 int bdi_writeback_task(struct bdi_writeback *wb);
 int bdi_has_dirty_io(struct backing_dev_info *bdi);
 void bdi_arm_supers_timer(void);
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 0c621604baa..e3d00fdb858 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -525,13 +525,21 @@ static inline struct cgroup_subsys_state *cgroup_subsys_state(
         return cgrp->subsys[subsys_id];
 }
 
-static inline struct cgroup_subsys_state *task_subsys_state(
-        struct task_struct *task, int subsys_id)
+/*
+ * function to get the cgroup_subsys_state which allows for extra
+ * rcu_dereference_check() conditions, such as locks used during the
+ * cgroup_subsys::attach() methods.
+ */
+#define task_subsys_state_check(task, subsys_id, __c)                   \
+        rcu_dereference_check(task->cgroups->subsys[subsys_id],         \
+                              rcu_read_lock_held() ||                   \
+                              lockdep_is_held(&task->alloc_lock) ||     \
+                              cgroup_lock_is_held() || (__c))
+
+static inline struct cgroup_subsys_state *
+task_subsys_state(struct task_struct *task, int subsys_id)
 {
-        return rcu_dereference_check(task->cgroups->subsys[subsys_id],
-                                     rcu_read_lock_held() ||
-                                     lockdep_is_held(&task->alloc_lock) ||
-                                     cgroup_lock_is_held());
+        return task_subsys_state_check(task, subsys_id, false);
 }
 
 static inline struct cgroup* task_cgroup(struct task_struct *task,
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index 73dcf804bc9..0da5b187f12 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -58,8 +58,12 @@
  * naked functions because then mcount is called without stack and frame pointer
  * being set up and there is no chance to restore the lr register to the value
  * before mcount was called.
+ *
+ * The asm() bodies of naked functions often depend on standard calling conventions,
+ * therefore they must be noinline and noclone.  GCC 4.[56] currently fail to enforce
+ * this, so we must do so ourselves.  See GCC PR44290.
  */
-#define __naked                         __attribute__((naked)) notrace
+#define __naked                         __attribute__((naked)) noinline __noclone notrace
 
 #define __noreturn                      __attribute__((noreturn))
 
@@ -85,3 +89,7 @@
 #define _gcc_header(x) __gcc_header(linux/compiler-gcc##x.h)
 #define gcc_header(x) _gcc_header(x)
 #include gcc_header(__GNUC__)
+
+#if !defined(__noclone)
+#define __noclone       /* not needed */
+#endif
diff -