Merge branch 'sa1100' into devel

69 files changed, 1923 insertions, 1102 deletions

diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index 1feed71551c..5a5385749e1 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -330,6 +330,7 @@ unifdef-y += scc.h
 unifdef-y += sched.h
 unifdef-y += screen_info.h
 unifdef-y += sdla.h
+unifdef-y += securebits.h
 unifdef-y += selinux_netlink.h
 unifdef-y += sem.h
 unifdef-y += serial_core.h
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index dd97fb8408a..b10ec49ee2d 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -53,6 +53,7 @@ extern void free_bootmem_node(pg_data_t *pgdat,
 			      unsigned long addr,
 			      unsigned long size);
 extern void free_bootmem(unsigned long addr, unsigned long size);
+extern void free_bootmem_late(unsigned long addr, unsigned long size);
 
 /*
  * Flags for reserve_bootmem (also if CONFIG_HAVE_ARCH_BOOTMEM_NODE,
diff --git a/include/linux/capability.h b/include/linux/capability.h
index c8f2a5f70ed..39e5ff512fb 100644
--- a/include/linux/capability.h
+++ b/include/linux/capability.h
@@ -92,9 +92,7 @@ struct vfs_cap_data {
 #define _KERNEL_CAPABILITY_VERSION _LINUX_CAPABILITY_VERSION_3
 #define _KERNEL_CAPABILITY_U32S    _LINUX_CAPABILITY_U32S_3
 
-#ifdef CONFIG_SECURITY_FILE_CAPABILITIES
 extern int file_caps_enabled;
-#endif
 
 typedef struct kernel_cap_struct {
 	__u32 cap[_KERNEL_CAPABILITY_U32S];
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index a3ed7cb8ca3..73dcf804bc9 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -79,6 +79,7 @@
 #define  noinline			__attribute__((noinline))
 #define __attribute_const__		__attribute__((__const__))
 #define __maybe_unused			__attribute__((unused))
+#define __always_unused			__attribute__((unused))
 
 #define __gcc_header(x) #x
 #define _gcc_header(x) __gcc_header(linux/compiler-gcc##x.h)
diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
index 450fa597c94..94dea3ffbfa 100644
--- a/include/linux/compiler-gcc4.h
+++ b/include/linux/compiler-gcc4.h
@@ -36,4 +36,26 @@
    the kernel context */
 #define __cold			__attribute__((__cold__))
 
+
+#if __GNUC_MINOR__ >= 5
+/*
+ * Mark a position in code as unreachable.  This can be used to
+ * suppress control flow warnings after asm blocks that transfer
+ * control elsewhere.
+ *
+ * Early snapshots of gcc 4.5 don't support this and we can't detect
+ * this in the preprocessor, but we can live with this because they're
+ * unreleased.  Really, we need to have autoconf for the kernel.
+ */
+#define unreachable() __builtin_unreachable()
+#endif
+
+#endif
+
+#if __GNUC_MINOR__ > 0
+#define __compiletime_object_size(obj) __builtin_object_size(obj, 0)
+#endif
+#if __GNUC_MINOR__ >= 4
+#define __compiletime_warning(message) __attribute__((warning(message)))
+#define __compiletime_error(message) __attribute__((error(message)))
 #endif
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 04fb5135b4e..5be3dab4a69 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -144,6 +144,11 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
 # define barrier() __memory_barrier()
 #endif
 
+/* Unreachable code */
+#ifndef unreachable
+# define unreachable() do { } while (1)
+#endif
+
 #ifndef RELOC_HIDE
 # define RELOC_HIDE(ptr, off)					\
   ({ unsigned long __ptr;					\
@@ -213,6 +218,10 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
 # define __maybe_unused		/* unimplemented */
 #endif
 
+#ifndef __always_unused
+# define __always_unused	/* unimplemented */
+#endif
+
 #ifndef noinline
 #define noinline
 #endif
@@ -266,6 +275,17 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
 # define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b))
 #endif
 
+/* Compile time object size, -1 for unknown */
+#ifndef __compiletime_object_size
+# define __compiletime_object_size(obj) -1
+#endif
+#ifndef __compiletime_warning
+# define __compiletime_warning(message)
+#endif
+#ifndef __compiletime_error
+# define __compiletime_error(message)
+#endif
+
 /*
  * Prevent the compiler from merging or refetching accesses.  The compiler
  * is also forbidden from reordering successive instances of ACCESS_ONCE(),
diff --git a/include/linux/dmar.h b/include/linux/dmar.h
index 4a2b162c256..5de4c9e5856 100644
--- a/include/linux/dmar.h
+++ b/include/linux/dmar.h
@@ -208,16 +208,9 @@ struct dmar_atsr_unit {
 	u8 include_all:1;		/* include all ports */
 };
 
-/* Intel DMAR  initialization functions */
 extern int intel_iommu_init(void);
-#else
-static inline int intel_iommu_init(void)
-{
-#ifdef CONFIG_INTR_REMAP
-	return dmar_dev_scope_init();
-#else
-	return -ENODEV;
-#endif
-}
-#endif /* !CONFIG_DMAR */
+#else /* !CONFIG_DMAR: */
+static inline int intel_iommu_init(void) { return -ENODEV; }
+#endif /* CONFIG_DMAR */
+
 #endif /* __DMAR_H__ */
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 4ec5e67e18c..47bbdf9c38d 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -117,12 +117,12 @@ struct ftrace_event_call {
 	struct dentry		*dir;
 	struct trace_event	*event;
 	int			enabled;
-	int			(*regfunc)(void *);
-	void			(*unregfunc)(void *);
+	int			(*regfunc)(struct ftrace_event_call *);
+	void			(*unregfunc)(struct ftrace_event_call *);
 	int			id;
-	int			(*raw_init)(void);
-	int			(*show_format)(struct ftrace_event_call *call,
-					       struct trace_seq *s);
+	int			(*raw_init)(struct ftrace_event_call *);
+	int			(*show_format)(struct ftrace_event_call *,
+					       struct trace_seq *);
 	int			(*define_fields)(struct ftrace_event_call *);
 	struct list_head	fields;
 	int			filter_active;
@@ -131,20 +131,20 @@ struct ftrace_event_call {
 	void			*data;
 
 	atomic_t		profile_count;
-	int			(*profile_enable)(void);
-	void			(*profile_disable)(void);
+	int			(*profile_enable)(struct ftrace_event_call *);
+	void			(*profile_disable)(struct ftrace_event_call *);
 };
 
 #define FTRACE_MAX_PROFILE_SIZE	2048
 
-extern char			*trace_profile_buf;
-extern char			*trace_profile_buf_nmi;
+extern char *perf_trace_buf;
+extern char *perf_trace_buf_nmi;
 
 #define MAX_FILTER_PRED		32
 #define MAX_FILTER_STR_VAL	256	/* Should handle KSYM_SYMBOL_LEN */
 
 extern void destroy_preds(struct ftrace_event_call *call);
-extern int filter_match_preds(struct ftrace_event_call *call, void *rec);
+extern int filter_match_preds(struct event_filter *filter, void *rec);
 extern int filter_current_check_discard(struct ring_buffer *buffer,
 					struct ftrace_event_call *call,
 					void *rec,
@@ -157,11 +157,12 @@ enum {
 	FILTER_PTR_STRING,
 };
 
-extern int trace_define_field(struct ftrace_event_call *call,
-			      const char *type, const char *name,
-			      int offset, int size, int is_signed,
-			      int filter_type);
 extern int trace_define_common_fields(struct ftrace_event_call *call);
+extern int trace_define_field(struct ftrace_event_call *call, const char *type,
+			      const char *name, int offset, int size,
+			      int is_signed, int filter_type);
+extern int trace_add_event_call(struct ftrace_event_call *call);
+extern void trace_remove_event_call(struct ftrace_event_call *call);
 
 #define is_signed_type(type)	(((type)(-1)) < 0)
 
@@ -186,4 +187,13 @@ do {									\
 		__trace_printk(ip, fmt, ##args);			\
 } while (0)
 
+#ifdef CONFIG_EVENT_PROFILE
+struct perf_event;
+extern int ftrace_profile_enable(int event_id);
+extern void ftrace_profile_disable(int event_id);
+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);
+#endif
+
 #endif /* _LINUX_FTRACE_EVENT_H */
diff --git a/include/linux/gfs2_ondisk.h b/include/linux/gfs2_ondisk.h
index b80c88dedbb..81f90a59cda 100644
--- a/include/linux/gfs2_ondisk.h
+++ b/include/linux/gfs2_ondisk.h
@@ -81,7 +81,11 @@ struct gfs2_meta_header {
 	__be32 mh_type;
 	__be64 __pad0;		/* Was generation number in gfs1 */
 	__be32 mh_format;
-	__be32 __pad1;		/* Was incarnation number in gfs1 */
+	/* This union is to keep userspace happy */
+	union {
+		__be32 mh_jid;		/* Was incarnation number in gfs1 */
+		__be32 __pad1;
+	};
 };
 
 /*
diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h
index 6d527ee82b2..d5b387669da 100644
--- a/include/linux/hardirq.h
+++ b/include/linux/hardirq.h
@@ -139,10 +139,34 @@ static inline void account_system_vtime(struct task_struct *tsk)
 #endif
 
 #if defined(CONFIG_NO_HZ)
+#if defined(CONFIG_TINY_RCU)
+extern void rcu_enter_nohz(void);
+extern void rcu_exit_nohz(void);
+
+static inline void rcu_irq_enter(void)
+{
+	rcu_exit_nohz();
+}
+
+static inline void rcu_irq_exit(void)
+{
+	rcu_enter_nohz();
+}
+
+static inline void rcu_nmi_enter(void)
+{
+}
+
+static inline void rcu_nmi_exit(void)
+{
+}
+
+#else
 extern void rcu_irq_enter(void);
 extern void rcu_irq_exit(void);
 extern void rcu_nmi_enter(void);
 extern void rcu_nmi_exit(void);
+#endif
 #else
 # define rcu_irq_enter() do { } while (0)
 # define rcu_irq_exit() do { } while (0)
diff --git a/include/linux/hw_breakpoint.h b/include/linux/hw_breakpoint.h
new file mode 100644
index 00000000000..a03daed08c5
--- /dev/null
+++ b/include/linux/hw_breakpoint.h
@@ -0,0 +1,131 @@
+#ifndef _LINUX_HW_BREAKPOINT_H
+#define _LINUX_HW_BREAKPOINT_H
+
+enum {
+	HW_BREAKPOINT_LEN_1 = 1,
+	HW_BREAKPOINT_LEN_2 = 2,
+	HW_BREAKPOINT_LEN_4 = 4,
+	HW_BREAKPOINT_LEN_8 = 8,
+};
+
+enum {
+	HW_BREAKPOINT_R = 1,
+	HW_BREAKPOINT_W = 2,
+	HW_BREAKPOINT_X = 4,
+};
+
+#ifdef __KERNEL__
+
+#include <linux/perf_event.h>
+
+#ifdef CONFIG_HAVE_HW_BREAKPOINT
+
+/* As it's for in-kernel or ptrace use, we want it to be pinned */
+#define DEFINE_BREAKPOINT_ATTR(name)	\
+struct perf_event_attr name = {		\
+	.type = PERF_TYPE_BREAKPOINT,	\
+	.size = sizeof(name),		\
+	.pinned = 1,			\
+};
+
+static inline void hw_breakpoint_init(struct perf_event_attr *attr)
+{
+	attr->type = PERF_TYPE_BREAKPOINT;
+	attr->size = sizeof(*attr);
+	attr->pinned = 1;
+}
+
+static inline unsigned long hw_breakpoint_addr(struct perf_event *bp)
+{
+	return bp->attr.bp_addr;
+}
+
+static inline int hw_breakpoint_type(struct perf_event *bp)
+{
+	return bp->attr.bp_type;
+}
+
+static inline int hw_breakpoint_len(struct perf_event *bp)
+{
+	return bp->attr.bp_len;
+}
+
+extern struct perf_event *
+register_user_hw_breakpoint(struct perf_event_attr *attr,
+			    perf_callback_t triggered,
+			    struct task_struct *tsk);
+
+/* FIXME: only change from the attr, and don't unregister */
+extern struct perf_event *
+modify_user_hw_breakpoint(struct perf_event *bp,
+			  struct perf_event_attr *attr,
+			  perf_callback_t triggered,
+			  struct task_struct *tsk);
+
+/*
+ * Kernel breakpoints are not associated with any particular thread.
+ */
+extern struct perf_event *
+register_wide_hw_breakpoint_cpu(struct perf_event_attr *attr,
+				perf_callback_t triggered,
+				int cpu);
+
+extern struct perf_event **
+register_wide_hw_breakpoint(struct perf_event_attr *attr,
+			    perf_callback_t triggered);
+
+extern int register_perf_hw_breakpoint(struct perf_event *bp);
+extern int __register_perf_hw_breakpoint(struct perf_event *bp);
+extern void unregister_hw_breakpoint(struct perf_event *bp);
+extern void unregister_wide_hw_breakpoint(struct perf_event **cpu_events);
+
+extern int reserve_bp_slot(struct perf_event *bp);
+extern void release_bp_slot(struct perf_event *bp);
+
+extern void flush_ptrace_hw_breakpoint(struct task_struct *tsk);
+
+static inline struct arch_hw_breakpoint *counter_arch_bp(struct perf_event *bp)
+{
+	return &bp->hw.info;
+}
+
+#else /* !CONFIG_HAVE_HW_BREAKPOINT */
+
+static inline struct perf_event *
+register_user_hw_breakpoint(struct perf_event_attr *attr,
+			    perf_callback_t triggered,
+			    struct task_struct *tsk)	{ return NULL; }
+static inline struct perf_event *
+modify_user_hw_breakpoint(struct perf_event *bp,
+			  struct perf_event_attr *attr,
+			  perf_callback_t triggered,
+			  struct task_struct *tsk)	{ return NULL; }
+static inline struct perf_event *
+register_wide_hw_breakpoint_cpu(struct perf_event_attr *attr,
+				perf_callback_t triggered,
+				int cpu)		{ return NULL; }
+static inline struct perf_event **
+register_wide_hw_breakpoint(struct perf_event_attr *attr,
+			    perf_callback_t triggered)	{ return NULL; }
+static inline int
+register_perf_hw_breakpoint(struct perf_event *bp)	{ return -ENOSYS; }
+static inline int
+__register_perf_hw_breakpoint(struct perf_event *bp) 	{ return -ENOSYS; }
+static inline void unregister_hw_breakpoint(struct perf_event *bp)	{ }
+static inline void
+unregister_wide_hw_breakpoint(struct perf_event **cpu_events)		{ }
+static inline int
+reserve_bp_slot(struct perf_event *bp)			{return -ENOSYS; }
+static inline void release_bp_slot(struct perf_event *bp) 		{ }
+
+static inline void flush_ptrace_hw_breakpoint(struct task_struct *tsk)	{ }
+
+static inline struct arch_hw_breakpoint *counter_arch_bp(struct perf_event *bp)
+{
+	return NULL;
+}
+
+#endif /* CONFIG_HAVE_HW_BREAKPOINT */
+#endif /* __KERNEL__ */
+
+#endif /* _LINUX_HW_BREAKPOINT_H */
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index 21a6f5d9af2..8d10aa7fd4c 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -83,16 +83,12 @@ extern struct group_info init_groups;
 #define INIT_IDS
 #endif
 
-#ifdef CONFIG_SECURITY_FILE_CAPABILITIES
 /*
  * Because of the reduced scope of CAP_SETPCAP when filesystem
  * capabilities are in effect, it is safe to allow CAP_SETPCAP to
  * be available in the default configuration.
  */
 # define CAP_INIT_BSET  CAP_FULL_SET
-#else
-# define CAP_INIT_BSET  CAP_INIT_EFF_SET
-#endif
 
 #ifdef CONFIG_TREE_PREEMPT_RCU
 #define INIT_TASK_RCU_PREEMPT(tsk)					\
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 7ca72b74eec..75f3f00ac1e 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -603,12 +603,6 @@ static inline void init_irq_proc(void)
 }
 #endif
 
-#if defined(CONFIG_GENERIC_HARDIRQS) && defined(CONFIG_DEBUG_SHIRQ)
-extern void debug_poll_all_shared_irqs(void);
-#else
-static inline void debug_poll_all_shared_irqs(void) { }
-#endif
-
 struct seq_file;
 int show_interrupts(struct seq_file *p, void *v);
 
diff --git a/include/linux/irqflags.h b/include/linux/irqflags.h
index b02a3f1d46a..006bf45eae3 100644
--- a/include/linux/irqflags.h
+++ b/include/linux/irqflags.h
@@ -124,6 +124,6 @@
 	typecheck(unsigned long, flags);	\
 	raw_irqs_disabled_flags(flags);		\
 })
-#endif		/* CONFIG_X86 */
+#endif /* CONFIG_TRACE_IRQFLAGS_SUPPORT */
 
 #endif
diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h
index 1a9cf78bfce..6811f4bfc6e 100644
--- a/include/linux/jiffies.h
+++ b/include/linux/jiffies.h
@@ -307,6 +307,7 @@ extern clock_t jiffies_to_clock_t(long x);
 extern unsigned long clock_t_to_jiffies(unsigned long x);
 extern u64 jiffies_64_to_clock_t(u64 x);
 extern u64 nsec_to_clock_t(u64 x);
+extern unsigned long nsecs_to_jiffies(u64 n);
 
 #define TIMESTAMP_SIZE	30
 
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index f4e3184fa05..3fa4c590cf1 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -15,7 +15,6 @@
 #include <linux/bitops.h>
 #include <linux/log2.h>
 #include <linux/typecheck.h>
-#include <linux/ratelimit.h>
 #include <linux/dynamic_debug.h>
 #include <asm/byteorder.h>
 #include <asm/bug.h>
@@ -241,8 +240,8 @@ asmlinkage int vprintk(const char *fmt, va_list args)
 asmlinkage int printk(const char * fmt, ...)
 	__attribute__ ((format (printf, 1, 2))) __cold;
 
-extern struct ratelimit_state printk_ratelimit_state;
-extern int printk_ratelimit(void);
+extern int __printk_ratelimit(const char *func);
+#define printk_ratelimit() __printk_ratelimit(__func__)
 extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
 				   unsigned int interval_msec);
 
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index 348fa8874b5..c059044bc6d 100644
--- a/