10 files changed, 63 insertions, 14 deletions

diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 8beabb958f61..725bf6bd39f7 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -154,12 +154,14 @@ enum {
         TRACE_EVENT_FL_ENABLED_BIT,
         TRACE_EVENT_FL_FILTERED_BIT,
         TRACE_EVENT_FL_RECORDED_CMD_BIT,
+        TRACE_EVENT_FL_CAP_ANY_BIT,
 };
 
 enum {
         TRACE_EVENT_FL_ENABLED          = (1 << TRACE_EVENT_FL_ENABLED_BIT),
         TRACE_EVENT_FL_FILTERED         = (1 << TRACE_EVENT_FL_FILTERED_BIT),
         TRACE_EVENT_FL_RECORDED_CMD     = (1 << TRACE_EVENT_FL_RECORDED_CMD_BIT),
+        TRACE_EVENT_FL_CAP_ANY          = (1 << TRACE_EVENT_FL_CAP_ANY_BIT),
 };
 
 struct ftrace_event_call {
@@ -196,6 +198,14 @@ struct ftrace_event_call {
 #endif
 };
 
+#define __TRACE_EVENT_FLAGS(name, value)                                \
+        static int __init trace_init_flags_##name(void)                 \
+        {                                                               \
+                event_##name.flags = value;                             \
+                return 0;                                               \
+        }                                                               \
+        early_initcall(trace_init_flags_##name);
+
 #define PERF_MAX_TRACE_SIZE     2048
 
 #define MAX_FILTER_PRED         32
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index e7d1b2e0070d..b78edb58ee66 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -275,7 +275,9 @@ extern int arch_prepared_optinsn(struct arch_optimized_insn *optinsn);
 extern int arch_check_optimized_kprobe(struct optimized_kprobe *op);
 extern int arch_prepare_optimized_kprobe(struct optimized_kprobe *op);
 extern void arch_remove_optimized_kprobe(struct optimized_kprobe *op);
-extern int  arch_optimize_kprobe(struct optimized_kprobe *op);
+extern void arch_optimize_kprobes(struct list_head *oplist);
+extern void arch_unoptimize_kprobes(struct list_head *oplist,
+                                    struct list_head *done_list);
 extern void arch_unoptimize_kprobe(struct optimized_kprobe *op);
 extern kprobe_opcode_t *get_optinsn_slot(void);
 extern void free_optinsn_slot(kprobe_opcode_t *slot, int dirty);
diff --git a/include/linux/nmi.h b/include/linux/nmi.h
index 06aab5eee134..17ccf44e7dcb 100644
--- a/include/linux/nmi.h
+++ b/include/linux/nmi.h
@@ -17,8 +17,6 @@
 #ifdef ARCH_HAS_NMI_WATCHDOG
 #include <asm/nmi.h>
 extern void touch_nmi_watchdog(void);
-extern void acpi_nmi_disable(void);
-extern void acpi_nmi_enable(void);
 #else
 #ifndef CONFIG_HARDLOCKUP_DETECTOR
 static inline void touch_nmi_watchdog(void)
@@ -28,8 +26,6 @@ static inline void touch_nmi_watchdog(void)
 #else
 extern void touch_nmi_watchdog(void);
 #endif
-static inline void acpi_nmi_disable(void) { }
-static inline void acpi_nmi_enable(void) { }
 #endif
 
 /*
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 4f1279e105ee..dda5b0a3ff60 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -215,8 +215,9 @@ struct perf_event_attr {
                                  */
                                 precise_ip     :  2, /* skid constraint       */
                                 mmap_data      :  1, /* non-exec mmap data    */
+                                sample_id_all  :  1, /* sample_type all events */
 
-                                __reserved_1   : 46;
+                                __reserved_1   : 45;
 
         union {
                 __u32           wakeup_events;    /* wakeup every n events */
@@ -327,6 +328,15 @@ struct perf_event_header {
 enum perf_event_type {
 
         /*
+         * If perf_event_attr.sample_id_all is set then all event types will
+         * have the sample_type selected fields related to where/when
+         * (identity) an event took place (TID, TIME, ID, CPU, STREAM_ID)
+         * described in PERF_RECORD_SAMPLE below, it will be stashed just after
+         * the perf_event_header and the fields already present for the existing
+         * fields, i.e. at the end of the payload. That way a newer perf.data
+         * file will be supported by older perf tools, with these new optional
+         * fields being ignored.
+         *
          * The MMAP events record the PROT_EXEC mappings so that we can
          * correlate userspace IPs to code. They have the following structure:
          *
@@ -578,6 +588,10 @@ struct perf_event;
 struct pmu {
         struct list_head                entry;
 
+        struct device                   *dev;
+        char                            *name;
+        int                             type;
+
         int * __percpu                  pmu_disable_count;
         struct perf_cpu_context * __percpu pmu_cpu_context;
         int                             task_ctx_nr;
@@ -758,6 +772,9 @@ struct perf_event {
         u64                             shadow_ctx_time;
 
         struct perf_event_attr          attr;
+        u16                             header_size;
+        u16                             id_header_size;
+        u16                             read_size;
         struct hw_perf_event            hw;
 
         struct perf_event_context       *ctx;
@@ -903,7 +920,7 @@ struct perf_output_handle {
 
 #ifdef CONFIG_PERF_EVENTS
 
-extern int perf_pmu_register(struct pmu *pmu);
+extern int perf_pmu_register(struct pmu *pmu, char *name, int type);
 extern void perf_pmu_unregister(struct pmu *pmu);
 
 extern int perf_num_counters(void);
@@ -970,6 +987,11 @@ extern int perf_event_overflow(struct perf_event *event, int nmi,
                                  struct perf_sample_data *data,
                                  struct pt_regs *regs);
 
+static inline bool is_sampling_event(struct perf_event *event)
+{
+        return event->attr.sample_period != 0;
+}
+
 /*
  * Return 1 for a software event, 0 for a hardware event
  */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 223874538b33..a99d735db3df 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -316,6 +316,7 @@ extern int proc_dowatchdog_thresh(struct ctl_table *table, int write,
                                   size_t *lenp, loff_t *ppos);
 extern unsigned int  softlockup_panic;
 extern int softlockup_thresh;
+void lockup_detector_init(void);
 #else
 static inline void touch_softlockup_watchdog(void)
 {
@@ -326,6 +327,9 @@ static inline void touch_softlockup_watchdog_sync(void)
 static inline void touch_all_softlockup_watchdogs(void)
 {
 }
+static inline void lockup_detector_init(void)
+{
+}
 #endif
 
 #ifdef CONFIG_DETECT_HUNG_TASK
diff --git a/include/linux/stacktrace.h b/include/linux/stacktrace.h
index 51efbef38fb0..25310f1d7f37 100644
--- a/include/linux/stacktrace.h
+++ b/include/linux/stacktrace.h
@@ -2,6 +2,7 @@
 #define __LINUX_STACKTRACE_H
 
 struct task_struct;
+struct pt_regs;
 
 #ifdef CONFIG_STACKTRACE
 struct task_struct;
@@ -13,7 +14,8 @@ struct stack_trace {
 };
 
 extern void save_stack_trace(struct stack_trace *trace);
-extern void save_stack_trace_bp(struct stack_trace *trace, unsigned long bp);
+extern void save_stack_trace_regs(struct stack_trace *trace,
+                                  struct pt_regs *regs);
 extern void save_stack_trace_tsk(struct task_struct *tsk,
                                 struct stack_trace *trace);
 
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index cacc27a0e285..18cd0684fc4e 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -127,8 +127,6 @@ extern struct trace_event_functions exit_syscall_print_funcs;
 #define SYSCALL_TRACE_ENTER_EVENT(sname)                                \
         static struct syscall_metadata                                  \
         __attribute__((__aligned__(4))) __syscall_meta_##sname;         \
-        static struct ftrace_event_call                                 \
-        __attribute__((__aligned__(4))) event_enter_##sname;            \
         static struct ftrace_event_call __used                          \
           __attribute__((__aligned__(4)))                               \
           __attribute__((section("_ftrace_events")))                    \
@@ -137,13 +135,12 @@ extern struct trace_event_functions exit_syscall_print_funcs;
                 .class                  = &event_class_syscall_enter,   \
                 .event.funcs            = &enter_syscall_print_funcs,   \
                 .data                   = (void *)&__syscall_meta_##sname,\
-        }
+        };                                                              \
+        __TRACE_EVENT_FLAGS(enter_##sname, TRACE_EVENT_FL_CAP_ANY)
 
 #define SYSCALL_TRACE_EXIT_EVENT(sname)                                 \
         static struct syscall_metadata                                  \
         __attribute__((__aligned__(4))) __syscall_meta_##sname;         \
-        static struct ftrace_event_call                                 \
-        __attribute__((__aligned__(4))) event_exit_##sname;             \
         static struct ftrace_event_call __used                          \
           __attribute__((__aligned__(4)))                               \
           __attribute__((section("_ftrace_events")))                    \
@@ -152,7 +149,8 @@ extern struct trace_event_functions exit_syscall_print_funcs;
                 .class                  = &event_class_syscall_exit,    \
                 .event.funcs            = &exit_syscall_print_funcs,    \
                 .data                   = (void *)&__syscall_meta_##sname,\
-        }
+        };                                                              \
+        __TRACE_EVENT_FLAGS(exit_##sname, TRACE_EVENT_FL_CAP_ANY)
 
 #define SYSCALL_METADATA(sname, nb)                             \
         SYSCALL_TRACE_ENTER_EVENT(sname);                       \
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index a4a90b6726ce..5a6074fcd81d 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -234,6 +234,8 @@ do_trace:								\
                                 PARAMS(void *__data, proto),            \
                                 PARAMS(__data, args))
 
+#define TRACE_EVENT_FLAGS(event, flag)
+
 #endif /* DECLARE_TRACE */
 
 #ifndef TRACE_EVENT
@@ -354,4 +356,6 @@ do_trace:								\
                 assign, print, reg, unreg)                      \
         DECLARE_TRACE(name, PARAMS(proto), PARAMS(args))
 
+#define TRACE_EVENT_FLAGS(event, flag)
+
 #endif /* ifdef TRACE_EVENT (see note above) */
diff --git a/include/trace/events/syscalls.h b/include/trace/events/syscalls.h
index fb726ac7caee..5a4c04a75b3d 100644
--- a/include/trace/events/syscalls.h
+++ b/include/trace/events/syscalls.h
@@ -40,6 +40,8 @@ TRACE_EVENT_FN(sys_enter,
         syscall_regfunc, syscall_unregfunc
 );
 
+TRACE_EVENT_FLAGS(sys_enter, TRACE_EVENT_FL_CAP_ANY)
+
 TRACE_EVENT_FN(sys_exit,
 
         TP_PROTO(struct pt_regs *regs, long ret),
@@ -62,6 +64,8 @@ TRACE_EVENT_FN(sys_exit,
         syscall_regfunc, syscall_unregfunc
 );
 
+TRACE_EVENT_FLAGS(sys_exit, TRACE_EVENT_FL_CAP_ANY)
+
 #endif /* CONFIG_HAVE_SYSCALL_TRACEPOINTS */
 
 #endif /* _TRACE_EVENTS_SYSCALLS_H */
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index a9377c0083ad..e718a917d897 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -82,6 +82,10 @@
         TRACE_EVENT(name, PARAMS(proto), PARAMS(args),                  \
                 PARAMS(tstruct), PARAMS(assign), PARAMS(print))         \
 
+#undef TRACE_EVENT_FLAGS
+#define TRACE_EVENT_FLAGS(name, value)                                  \
+        __TRACE_EVENT_FLAGS(name, value)
+
 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
 
 
@@ -129,6 +133,9 @@
 #define DEFINE_EVENT_PRINT(template, name, proto, args, print)  \
         DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
 
+#undef TRACE_EVENT_FLAGS
+#define TRACE_EVENT_FLAGS(event, flag)
+
 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
 
 /*