Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (123 commits)
  perf: Remove the nmi parameter from the oprofile_perf backend
  x86, perf: Make copy_from_user_nmi() a library function
  perf: Remove perf_event_attr::type check
  x86, perf: P4 PMU - Fix typos in comments and style cleanup
  perf tools: Make test use the preset debugfs path
  perf tools: Add automated tests for events parsing
  perf tools: De-opt the parse_events function
  perf script: Fix display of IP address for non-callchain path
  perf tools: Fix endian conversion reading event attr from file header
  perf tools: Add missing 'node' alias to the hw_cache[] array
  perf probe: Support adding probes on offline kernel modules
  perf probe: Add probed module in front of function
  perf probe: Introduce debuginfo to encapsulate dwarf information
  perf-probe: Move dwarf library routines to dwarf-aux.{c, h}
  perf probe: Remove redundant dwarf functions
  perf probe: Move strtailcmp to string.c
  perf probe: Rename DIE_FIND_CB_FOUND to DIE_FIND_CB_END
  tracing/kprobe: Update symbol reference when loading module
  tracing/kprobes: Support module init function probing
  kprobes: Return -ENOENT if probe point doesn't exist
  ...

6 files changed, 54 insertions, 55 deletions

diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 9d88e1cb5dbb..f0c0e8a47ae6 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -19,6 +19,8 @@
 
 #include <asm/ftrace.h>
 
+struct ftrace_hash;
+
 #ifdef CONFIG_FUNCTION_TRACER
 
 extern int ftrace_enabled;
@@ -29,8 +31,6 @@ ftrace_enable_sysctl(struct ctl_table *table, int write,
 
 typedef void (*ftrace_func_t)(unsigned long ip, unsigned long parent_ip);
 
-struct ftrace_hash;
-
 enum {
 	FTRACE_OPS_FL_ENABLED		= 1 << 0,
 	FTRACE_OPS_FL_GLOBAL		= 1 << 1,
@@ -123,7 +123,8 @@ stack_trace_sysctl(struct ctl_table *table, int write,
 struct ftrace_func_command {
 	struct list_head	list;
 	char			*name;
-	int			(*func)(char *func, char *cmd,
+	int			(*func)(struct ftrace_hash *hash,
+					char *func, char *cmd,
 					char *params, int enable);
 };
 
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 59d3ef100eb9..96efa6794ea5 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -76,6 +76,7 @@ struct trace_iterator {
 	struct trace_entry	*ent;
 	unsigned long		lost_events;
 	int			leftover;
+	int			ent_size;
 	int			cpu;
 	u64			ts;
 
@@ -129,6 +130,10 @@ void trace_current_buffer_unlock_commit(struct ring_buffer *buffer,
 void trace_nowake_buffer_unlock_commit(struct ring_buffer *buffer,
 				       struct ring_buffer_event *event,
 					unsigned long flags, int pc);
+void trace_nowake_buffer_unlock_commit_regs(struct ring_buffer *buffer,
+					    struct ring_buffer_event *event,
+					    unsigned long flags, int pc,
+					    struct pt_regs *regs);
 void trace_current_buffer_discard_commit(struct ring_buffer *buffer,
 					 struct ring_buffer_event *event);
 
diff --git a/include/linux/hw_breakpoint.h b/include/linux/hw_breakpoint.h
index d1e55fed2c7d..6ae9c631a1be 100644
--- a/include/linux/hw_breakpoint.h
+++ b/include/linux/hw_breakpoint.h
@@ -73,6 +73,7 @@ static inline unsigned long hw_breakpoint_len(struct perf_event *bp)
 extern struct perf_event *
 register_user_hw_breakpoint(struct perf_event_attr *attr,
 			    perf_overflow_handler_t triggered,
+			    void *context,
 			    struct task_struct *tsk);
 
 /* FIXME: only change from the attr, and don't unregister */
@@ -85,11 +86,13 @@ modify_user_hw_breakpoint(struct perf_event *bp, struct perf_event_attr *attr);
 extern struct perf_event *
 register_wide_hw_breakpoint_cpu(struct perf_event_attr *attr,
 				perf_overflow_handler_t	triggered,
+				void *context,
 				int cpu);
 
 extern struct perf_event * __percpu *
 register_wide_hw_breakpoint(struct perf_event_attr *attr,
-			    perf_overflow_handler_t triggered);
+			    perf_overflow_handler_t triggered,
+			    void *context);
 
 extern int register_perf_hw_breakpoint(struct perf_event *bp);
 extern int __register_perf_hw_breakpoint(struct perf_event *bp);
@@ -115,6 +118,7 @@ static inline int __init init_hw_breakpoint(void) { return 0; }
 static inline struct perf_event *
 register_user_hw_breakpoint(struct perf_event_attr *attr,
 			    perf_overflow_handler_t triggered,
+			    void *context,
 			    struct task_struct *tsk)	{ return NULL; }
 static inline int
 modify_user_hw_breakpoint(struct perf_event *bp,
@@ -122,10 +126,12 @@ modify_user_hw_breakpoint(struct perf_event *bp,
 static inline struct perf_event *
 register_wide_hw_breakpoint_cpu(struct perf_event_attr *attr,
 				perf_overflow_handler_t	 triggered,
+				void *context,
 				int cpu)		{ return NULL; }
 static inline struct perf_event * __percpu *
 register_wide_hw_breakpoint(struct perf_event_attr *attr,
-			    perf_overflow_handler_t triggered)	{ return NULL; }
+			    perf_overflow_handler_t triggered,
+			    void *context)		{ return NULL; }
 static inline int
 register_perf_hw_breakpoint(struct perf_event *bp)	{ return -ENOSYS; }
 static inline int
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index e0786e35f247..3f2711ccf910 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -61,7 +61,7 @@ enum perf_hw_id {
 /*
  * Generalized hardware cache events:
  *
- *       { L1-D, L1-I, LLC, ITLB, DTLB, BPU } x
+ *       { L1-D, L1-I, LLC, ITLB, DTLB, BPU, NODE } x
  *       { read, write, prefetch } x
  *       { accesses, misses }
  */
@@ -72,6 +72,7 @@ enum perf_hw_cache_id {
 	PERF_COUNT_HW_CACHE_DTLB		= 3,
 	PERF_COUNT_HW_CACHE_ITLB		= 4,
 	PERF_COUNT_HW_CACHE_BPU			= 5,
+	PERF_COUNT_HW_CACHE_NODE		= 6,
 
 	PERF_COUNT_HW_CACHE_MAX,		/* non-ABI */
 };
@@ -536,6 +537,16 @@ struct perf_branch_stack {
 
 struct task_struct;
 
+/*
+ * extra PMU register associated with an event
+ */
+struct hw_perf_event_extra {
+	u64		config;	/* register value */
+	unsigned int	reg;	/* register address or index */
+	int		alloc;	/* extra register already allocated */
+	int		idx;	/* index in shared_regs->regs[] */
+};
+
 /**
  * struct hw_perf_event - performance event hardware details:
  */
@@ -549,9 +560,7 @@ struct hw_perf_event {
 			unsigned long	event_base;
 			int		idx;
 			int		last_cpu;
-			unsigned int	extra_reg;
-			u64		extra_config;
-			int		extra_alloc;
+			struct hw_perf_event_extra extra_reg;
 		};
 		struct { /* software */
 			struct hrtimer	hrtimer;
@@ -680,36 +689,9 @@ enum perf_event_active_state {
 };
 
 struct file;
-
-#define PERF_BUFFER_WRITABLE		0x01
-
-struct perf_buffer {
-	atomic_t			refcount;
-	struct rcu_head			rcu_head;
-#ifdef CONFIG_PERF_USE_VMALLOC
-	struct work_struct		work;
-	int				page_order;	/* allocation order  */
-#endif
-	int				nr_pages;	/* nr of data pages  */
-	int				writable;	/* are we writable   */
-
-	atomic_t			poll;		/* POLL_ for wakeups */
-
-	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  */
-
-	struct perf_event_mmap_page	*user_page;
-	void				*data_pages[0];
-};
-
 struct perf_sample_data;
 
-typedef void (*perf_overflow_handler_t)(struct perf_event *, int,
+typedef void (*perf_overflow_handler_t)(struct perf_event *,
 					struct perf_sample_data *,
 					struct pt_regs *regs);
 
@@ -745,6 +727,8 @@ struct perf_cgroup {
 };
 #endif
 
+struct ring_buffer;
+
 /**
  * struct perf_event - performance event kernel representation:
  */
@@ -834,7 +818,7 @@ struct perf_event {
 	atomic_t			mmap_count;
 	int				mmap_locked;
 	struct user_struct		*mmap_user;
-	struct perf_buffer		*buffer;
+	struct ring_buffer		*rb;
 
 	/* poll related */
 	wait_queue_head_t		waitq;
@@ -855,6 +839,7 @@ struct perf_event {
 	u64				id;
 
 	perf_overflow_handler_t		overflow_handler;
+	void				*overflow_handler_context;
 
 #ifdef CONFIG_EVENT_TRACING
 	struct ftrace_event_call	*tp_event;
@@ -919,8 +904,8 @@ struct perf_event_context {
 	u64				parent_gen;
 	u64				generation;
 	int				pin_count;
-	struct rcu_head			rcu_head;
 	int				nr_cgroups; /* cgroup events present */
+	struct rcu_head			rcu_head;
 };
 
 /*
@@ -945,13 +930,11 @@ struct perf_cpu_context {
 
 struct perf_output_handle {
 	struct perf_event		*event;
-	struct perf_buffer		*buffer;
+	struct ring_buffer		*rb;
 	unsigned long			wakeup;
 	unsigned long			size;
 	void				*addr;
 	int				page;
-	int				nmi;
-	int				sample;
 };
 
 #ifdef CONFIG_PERF_EVENTS
@@ -972,13 +955,15 @@ extern void perf_pmu_disable(struct pmu *pmu);
 extern void perf_pmu_enable(struct pmu *pmu);
 extern int perf_event_task_disable(void);
 extern int perf_event_task_enable(void);
+extern int perf_event_refresh(struct perf_event *event, int refresh);
 extern void perf_event_update_userpage(struct perf_event *event);
 extern int perf_event_release_kernel(struct perf_event *event);
 extern struct perf_event *
 perf_event_create_kernel_counter(struct perf_event_attr *attr,
 				int cpu,
 				struct task_struct *task,
-				perf_overflow_handler_t callback);
+				perf_overflow_handler_t callback,
+				void *context);
 extern u64 perf_event_read_value(struct perf_event *event,
 				 u64 *enabled, u64 *running);
 
@@ -1018,7 +1003,7 @@ extern void perf_prepare_sample(struct perf_event_header *header,
 				struct perf_event *event,
 				struct pt_regs *regs);
 
-extern int perf_event_overflow(struct perf_event *event, int nmi,
+extern int perf_event_overflow(struct perf_event *event,
 				 struct perf_sample_data *data,
 				 struct pt_regs *regs);
 
@@ -1037,7 +1022,7 @@ static inline int is_software_event(struct perf_event *event)
 
 extern struct jump_label_key perf_swevent_enabled[PERF_COUNT_SW_MAX];
 
-extern void __perf_sw_event(u32, u64, int, struct pt_regs *, u64);
+extern void __perf_sw_event(u32, u64, struct pt_regs *, u64);
 
 #ifndef perf_arch_fetch_caller_regs
 static inline void perf_arch_fetch_caller_regs(struct pt_regs *regs, unsigned long ip) { }
@@ -1059,7 +1044,7 @@ static inline void perf_fetch_caller_regs(struct pt_regs *regs)
 }
 
 static __always_inline void
-perf_sw_event(u32 event_id, u64 nr, int nmi, struct pt_regs *regs, u64 addr)
+perf_sw_event(u32 event_id, u64 nr, struct pt_regs *regs, u64 addr)
 {
 	struct pt_regs hot_regs;
 
@@ -1068,7 +1053,7 @@ perf_sw_event(u32 event_id, u64 nr, int nmi, struct pt_regs *regs, u64 addr)
 			perf_fetch_caller_regs(&hot_regs);
 			regs = &hot_regs;
 		}
-		__perf_sw_event(event_id, nr, nmi, regs, addr);
+		__perf_sw_event(event_id, nr, regs, addr);
 	}
 }
 
@@ -1082,7 +1067,7 @@ static inline void perf_event_task_sched_in(struct task_struct *task)
 
 static inline void perf_event_task_sched_out(struct task_struct *task, struct task_struct *next)
 {
-	perf_sw_event(PERF_COUNT_SW_CONTEXT_SWITCHES, 1, 1, NULL, 0);
+	perf_sw_event(PERF_COUNT_SW_CONTEXT_SWITCHES, 1, NULL, 0);
 
 	__perf_event_task_sched_out(task, next);
 }
@@ -1143,8 +1128,7 @@ extern void perf_bp_event(struct perf_event *event, void *data);
 #endif
 
 extern int perf_output_begin(struct perf_output_handle *handle,
-			     struct perf_event *event, unsigned int size,
-			     int nmi, int sample);
+			     struct perf_event *event, unsigned int size);
 extern void perf_output_end(struct perf_output_handle *handle);
 extern void perf_output_copy(struct perf_output_handle *handle,
 			     const void *buf, unsigned int len);
@@ -1166,10 +1150,13 @@ static inline void perf_event_delayed_put(struct task_struct *task)	{ }
 static inline void perf_event_print_debug(void)				{ }
 static inline int perf_event_task_disable(void)				{ return -EINVAL; }
 static inline int perf_event_task_enable(void)				{ return -EINVAL; }
+static inline int perf_event_refresh(struct perf_event *event, int refresh)
+{
+	return -EINVAL;
+}
 
 static inline void
-perf_sw_event(u32 event_id, u64 nr, int nmi,
-		     struct pt_regs *regs, u64 addr)			{ }
+perf_sw_event(u32 event_id, u64 nr, struct pt_regs *regs, u64 addr)	{ }
 static inline void
 perf_bp_event(struct perf_event *event, void *data)			{ }
 
diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h
index ab38ac80b0f9..b891de96000f 100644
--- a/include/linux/ring_buffer.h
+++ b/include/linux/ring_buffer.h
@@ -169,7 +169,7 @@ void ring_buffer_set_clock(struct ring_buffer *buffer,
 size_t ring_buffer_page_len(void *page);
 
 
-void *ring_buffer_alloc_read_page(struct ring_buffer *buffer);
+void *ring_buffer_alloc_read_page(struct ring_buffer *buffer, int cpu);
 void ring_buffer_free_read_page(struct ring_buffer *buffer, void *data);
 int ring_buffer_read_page(struct ring_buffer *buffer, void **data_page,
 			  size_t len, int cpu, int full);
diff --git a/include/linux/stacktrace.h b/include/linux/stacktrace.h
index 25310f1d7f37..115b570e3bff 100644
--- a/include/linux/stacktrace.h
+++ b/include/linux/stacktrace.h
@@ -14,8 +14,8 @@ struct stack_trace {
 };
 
 extern void save_stack_trace(struct stack_trace *trace);
-extern void save_stack_trace_regs(struct stack_trace *trace,
-				  struct pt_regs *regs);
+extern void save_stack_trace_regs(struct pt_regs *regs,
+				  struct stack_trace *trace);
 extern void save_stack_trace_tsk(struct task_struct *tsk,
 				struct stack_trace *trace);