7 files changed, 398 insertions, 16 deletions

diff --git a/include/trace/define_trace.h b/include/trace/define_trace.h
index 1dfab5401511..da39b22636f7 100644
--- a/include/trace/define_trace.h
+++ b/include/trace/define_trace.h
@@ -21,11 +21,30 @@
 #undef CREATE_TRACE_POINTS
 
 #include <linux/stringify.h>
+/*
+ * module.h includes tracepoints, and because ftrace.h
+ * pulls in module.h:
+ *  trace/ftrace.h -> linux/ftrace_event.h -> linux/perf_event.h ->
+ *  linux/ftrace.h -> linux/module.h
+ * we must include module.h here before we play with any of
+ * the TRACE_EVENT() macros, otherwise the tracepoints included
+ * by module.h may break the build.
+ */
+#include <linux/module.h>
 
 #undef TRACE_EVENT
 #define TRACE_EVENT(name, proto, args, tstruct, assign, print)  \
         DEFINE_TRACE(name)
 
+#undef TRACE_EVENT_CONDITION
+#define TRACE_EVENT_CONDITION(name, proto, args, cond, tstruct, assign, print) \
+        TRACE_EVENT(name,                                               \
+                PARAMS(proto),                                          \
+                PARAMS(args),                                           \
+                PARAMS(tstruct),                                        \
+                PARAMS(assign),                                         \
+                PARAMS(print))
+
 #undef TRACE_EVENT_FN
 #define TRACE_EVENT_FN(name, proto, args, tstruct,              \
                 assign, print, reg, unreg)                      \
@@ -39,6 +58,10 @@
 #define DEFINE_EVENT_PRINT(template, name, proto, args, print)  \
         DEFINE_TRACE(name)
 
+#undef DEFINE_EVENT_CONDITION
+#define DEFINE_EVENT_CONDITION(template, name, proto, args, cond) \
+        DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
+
 #undef DECLARE_TRACE
 #define DECLARE_TRACE(name, proto, args)        \
         DEFINE_TRACE(name)
@@ -75,9 +98,11 @@
 
 #undef TRACE_EVENT
 #undef TRACE_EVENT_FN
+#undef TRACE_EVENT_CONDITION
 #undef DECLARE_EVENT_CLASS
 #undef DEFINE_EVENT
 #undef DEFINE_EVENT_PRINT
+#undef DEFINE_EVENT_CONDITION
 #undef TRACE_HEADER_MULTI_READ
 #undef DECLARE_TRACE
 
diff --git a/include/trace/events/kvm.h b/include/trace/events/kvm.h
index 6dd3a51ab1cb..46e3cd8e197a 100644
--- a/include/trace/events/kvm.h
+++ b/include/trace/events/kvm.h
@@ -6,6 +6,36 @@
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM kvm
 
+#define ERSN(x) { KVM_EXIT_##x, "KVM_EXIT_" #x }
+
+#define kvm_trace_exit_reason                                           \
+        ERSN(UNKNOWN), ERSN(EXCEPTION), ERSN(IO), ERSN(HYPERCALL),      \
+        ERSN(DEBUG), ERSN(HLT), ERSN(MMIO), ERSN(IRQ_WINDOW_OPEN),      \
+        ERSN(SHUTDOWN), ERSN(FAIL_ENTRY), ERSN(INTR), ERSN(SET_TPR),    \
+        ERSN(TPR_ACCESS), ERSN(S390_SIEIC), ERSN(S390_RESET), ERSN(DCR),\
+        ERSN(NMI), ERSN(INTERNAL_ERROR), ERSN(OSI)
+
+TRACE_EVENT(kvm_userspace_exit,
+            TP_PROTO(__u32 reason, int errno),
+            TP_ARGS(reason, errno),
+
+        TP_STRUCT__entry(
+                __field(        __u32,          reason          )
+                __field(        int,            errno           )
+        ),
+
+        TP_fast_assign(
+                __entry->reason         = reason;
+                __entry->errno          = errno;
+        ),
+
+        TP_printk("reason %s (%d)",
+                  __entry->errno < 0 ?
+                  (__entry->errno == -EINTR ? "restart" : "error") :
+                  __print_symbolic(__entry->reason, kvm_trace_exit_reason),
+                  __entry->errno < 0 ? -__entry->errno : __entry->reason)
+);
+
 #if defined(__KVM_HAVE_IOAPIC)
 TRACE_EVENT(kvm_set_irq,
         TP_PROTO(unsigned int gsi, int level, int irq_source_id),
@@ -185,6 +215,97 @@ TRACE_EVENT(kvm_age_page,
                   __entry->referenced ? "YOUNG" : "OLD")
 );
 
+#ifdef CONFIG_KVM_ASYNC_PF
+DECLARE_EVENT_CLASS(kvm_async_get_page_class,
+
+        TP_PROTO(u64 gva, u64 gfn),
+
+        TP_ARGS(gva, gfn),
+
+        TP_STRUCT__entry(
+                __field(__u64, gva)
+                __field(u64, gfn)
+        ),
+
+        TP_fast_assign(
+                __entry->gva = gva;
+                __entry->gfn = gfn;
+        ),
+
+        TP_printk("gva = %#llx, gfn = %#llx", __entry->gva, __entry->gfn)
+);
+
+DEFINE_EVENT(kvm_async_get_page_class, kvm_try_async_get_page,
+
+        TP_PROTO(u64 gva, u64 gfn),
+
+        TP_ARGS(gva, gfn)
+);
+
+DEFINE_EVENT(kvm_async_get_page_class, kvm_async_pf_doublefault,
+
+        TP_PROTO(u64 gva, u64 gfn),
+
+        TP_ARGS(gva, gfn)
+);
+
+DECLARE_EVENT_CLASS(kvm_async_pf_nopresent_ready,
+
+        TP_PROTO(u64 token, u64 gva),
+
+        TP_ARGS(token, gva),
+
+        TP_STRUCT__entry(
+                __field(__u64, token)
+                __field(__u64, gva)
+        ),
+
+        TP_fast_assign(
+                __entry->token = token;
+                __entry->gva = gva;
+        ),
+
+        TP_printk("token %#llx gva %#llx", __entry->token, __entry->gva)
+
+);
+
+DEFINE_EVENT(kvm_async_pf_nopresent_ready, kvm_async_pf_not_present,
+
+        TP_PROTO(u64 token, u64 gva),
+
+        TP_ARGS(token, gva)
+);
+
+DEFINE_EVENT(kvm_async_pf_nopresent_ready, kvm_async_pf_ready,
+
+        TP_PROTO(u64 token, u64 gva),
+
+        TP_ARGS(token, gva)
+);
+
+TRACE_EVENT(
+        kvm_async_pf_completed,
+        TP_PROTO(unsigned long address, struct page *page, u64 gva),
+        TP_ARGS(address, page, gva),
+
+        TP_STRUCT__entry(
+                __field(unsigned long, address)
+                __field(pfn_t, pfn)
+                __field(u64, gva)
+                ),
+
+        TP_fast_assign(
+                __entry->address = address;
+                __entry->pfn = page ? page_to_pfn(page) : 0;
+                __entry->gva = gva;
+                ),
+
+        TP_printk("gva %#llx address %#lx pfn %#llx",  __entry->gva,
+                  __entry->address, __entry->pfn)
+);
+
+#endif
+
 #endif /* _TRACE_KVM_MAIN_H */
 
 /* This part must be outside protection */
diff --git a/include/trace/events/power.h b/include/trace/events/power.h
index 286784d69b8f..1bcc2a8c00e2 100644
--- a/include/trace/events/power.h
+++ b/include/trace/events/power.h
@@ -7,16 +7,67 @@
 #include <linux/ktime.h>
 #include <linux/tracepoint.h>
 
-#ifndef _TRACE_POWER_ENUM_
-#define _TRACE_POWER_ENUM_
-enum {
-        POWER_NONE      = 0,
-        POWER_CSTATE    = 1,    /* C-State */
-        POWER_PSTATE    = 2,    /* Fequency change or DVFS */
-        POWER_SSTATE    = 3,    /* Suspend */
-};
+DECLARE_EVENT_CLASS(cpu,
+
+        TP_PROTO(unsigned int state, unsigned int cpu_id),
+
+        TP_ARGS(state, cpu_id),
+
+        TP_STRUCT__entry(
+                __field(        u32,            state           )
+                __field(        u32,            cpu_id          )
+        ),
+
+        TP_fast_assign(
+                __entry->state = state;
+                __entry->cpu_id = cpu_id;
+        ),
+
+        TP_printk("state=%lu cpu_id=%lu", (unsigned long)__entry->state,
+                  (unsigned long)__entry->cpu_id)
+);
+
+DEFINE_EVENT(cpu, cpu_idle,
+
+        TP_PROTO(unsigned int state, unsigned int cpu_id),
+
+        TP_ARGS(state, cpu_id)
+);
+
+/* This file can get included multiple times, TRACE_HEADER_MULTI_READ at top */
+#ifndef _PWR_EVENT_AVOID_DOUBLE_DEFINING
+#define _PWR_EVENT_AVOID_DOUBLE_DEFINING
+
+#define PWR_EVENT_EXIT -1
 #endif
 
+DEFINE_EVENT(cpu, cpu_frequency,
+
+        TP_PROTO(unsigned int frequency, unsigned int cpu_id),
+
+        TP_ARGS(frequency, cpu_id)
+);
+
+TRACE_EVENT(machine_suspend,
+
+        TP_PROTO(unsigned int state),
+
+        TP_ARGS(state),
+
+        TP_STRUCT__entry(
+                __field(        u32,            state           )
+        ),
+
+        TP_fast_assign(
+                __entry->state = state;
+        ),
+
+        TP_printk("state=%lu", (unsigned long)__entry->state)
+);
+
+/* This code will be removed after deprecation time exceeded (2.6.41) */
+#ifdef CONFIG_EVENT_POWER_TRACING_DEPRECATED
+
 /*
  * The power events are used for cpuidle & suspend (power_start, power_end)
  *  and for cpufreq (power_frequency)
@@ -75,6 +126,36 @@ TRACE_EVENT(power_end,
 
 );
 
+/* Deprecated dummy functions must be protected against multi-declartion */
+#ifndef _PWR_EVENT_AVOID_DOUBLE_DEFINING_DEPRECATED
+#define _PWR_EVENT_AVOID_DOUBLE_DEFINING_DEPRECATED
+
+enum {
+        POWER_NONE = 0,
+        POWER_CSTATE = 1,
+        POWER_PSTATE = 2,
+};
+#endif /* _PWR_EVENT_AVOID_DOUBLE_DEFINING_DEPRECATED */
+
+#else /* CONFIG_EVENT_POWER_TRACING_DEPRECATED */
+
+#ifndef _PWR_EVENT_AVOID_DOUBLE_DEFINING_DEPRECATED
+#define _PWR_EVENT_AVOID_DOUBLE_DEFINING_DEPRECATED
+enum {
+       POWER_NONE = 0,
+       POWER_CSTATE = 1,
+       POWER_PSTATE = 2,
+};
+
+/* These dummy declaration have to be ripped out when the deprecated
+   events get removed */
+static inline void trace_power_start(u64 type, u64 state, u64 cpuid) {};
+static inline void trace_power_end(u64 cpuid) {};
+static inline void trace_power_frequency(u64 type, u64 state, u64 cpuid) {};
+#endif /* _PWR_EVENT_AVOID_DOUBLE_DEFINING_DEPRECATED */
+
+#endif /* CONFIG_EVENT_POWER_TRACING_DEPRECATED */
+
 /*
  * The clock events are used for clock enable/disable and for
  *  clock rate change
@@ -153,7 +234,6 @@ DEFINE_EVENT(power_domain, power_domain_target,
 
         TP_ARGS(name, state, cpu_id)
 );
-
 #endif /* _TRACE_POWER_H */
 
 /* This part must be outside protection */
diff --git a/include/trace/events/regulator.h b/include/trace/events/regulator.h
new file mode 100644
index 000000000000..37502a7404b7
--- /dev/null
+++ b/include/trace/events/regulator.h
@@ -0,0 +1,141 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM regulator
+
+#if !defined(_TRACE_REGULATOR_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_REGULATOR_H
+
+#include <linux/ktime.h>
+#include <linux/tracepoint.h>
+
+/*
+ * Events which just log themselves and the regulator name for enable/disable
+ * type tracking.
+ */
+DECLARE_EVENT_CLASS(regulator_basic,
+
+        TP_PROTO(const char *name),
+
+        TP_ARGS(name),
+
+        TP_STRUCT__entry(
+                __string(       name,   name    )
+        ),
+
+        TP_fast_assign(
+                __assign_str(name, name);
+        ),
+
+        TP_printk("name=%s", __get_str(name))
+
+);
+
+DEFINE_EVENT(regulator_basic, regulator_enable,
+
+        TP_PROTO(const char *name),
+
+        TP_ARGS(name)
+
+);
+
+DEFINE_EVENT(regulator_basic, regulator_enable_delay,
+
+        TP_PROTO(const char *name),
+
+        TP_ARGS(name)
+
+);
+
+DEFINE_EVENT(regulator_basic, regulator_enable_complete,
+
+        TP_PROTO(const char *name),
+
+        TP_ARGS(name)
+
+);
+
+DEFINE_EVENT(regulator_basic, regulator_disable,
+
+        TP_PROTO(const char *name),
+
+        TP_ARGS(name)
+
+);
+
+DEFINE_EVENT(regulator_basic, regulator_disable_complete,
+
+        TP_PROTO(const char *name),
+
+        TP_ARGS(name)
+
+);
+
+/*
+ * Events that take a range of numerical values, mostly for voltages
+ * and so on.
+ */
+DECLARE_EVENT_CLASS(regulator_range,
+
+        TP_PROTO(const char *name, int min, int max),
+
+        TP_ARGS(name, min, max),
+
+        TP_STRUCT__entry(
+                __string(       name,           name            )
+                __field(        int,            min             )
+                __field(        int,            max             )
+        ),
+
+        TP_fast_assign(
+                __assign_str(name, name);
+                __entry->min  = min;
+                __entry->max  = max;
+        ),
+
+        TP_printk("name=%s (%d-%d)", __get_str(name),
+                  (int)__entry->min, (int)__entry->max)
+);
+
+DEFINE_EVENT(regulator_range, regulator_set_voltage,
+
+        TP_PROTO(const char *name, int min, int max),
+
+        TP_ARGS(name, min, max)
+
+);
+
+
+/*
+ * Events that take a single value, mostly for readback and refcounts.
+ */
+DECLARE_EVENT_CLASS(regulator_value,
+
+        TP_PROTO(const char *name, unsigned int val),
+
+        TP_ARGS(name, val),
+
+        TP_STRUCT__entry(
+                __string(       name,           name            )
+                __field(        unsigned int,   val             )
+        ),
+
+        TP_fast_assign(
+                __assign_str(name, name);
+                __entry->val  = val;
+        ),
+
+        TP_printk("name=%s, val=%u", __get_str(name),
+                  (int)__entry->val)
+);
+
+DEFINE_EVENT(regulator_value, regulator_set_voltage_complete,
+
+        TP_PROTO(const char *name, unsigned int value),
+
+        TP_ARGS(name, value)
+
+);
+
+#endif /* _TRACE_POWER_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/include/trace/events/skb.h b/include/trace/events/skb.h
index 75ce9d500d8e..f10293c41b1e 100644
--- a/include/trace/events/skb.h
+++ b/include/trace/events/skb.h
@@ -25,9 +25,7 @@ TRACE_EVENT(kfree_skb,
 
         TP_fast_assign(
                 __entry->skbaddr = skb;
-                if (skb) {
-                        __entry->protocol = ntohs(skb->protocol);
-                }
+                __entry->protocol = ntohs(skb->protocol);
                 __entry->location = location;
         ),
 
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..e16610c208c9 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)
 
 /*
@@ -289,13 +296,19 @@ static struct trace_event_functions ftrace_event_type_funcs_##call = {	\
 
 #undef __array
 #define __array(type, item, len)                                        \
-        BUILD_BUG_ON(len > MAX_FILTER_STR_VAL);                         \
-        ret = trace_define_field(event_call, #type "[" #len "]", #item, \
+        do {                                                            \
+                mutex_lock(&event_storage_mutex);                       \
+                BUILD_BUG_ON(len > MAX_FILTER_STR_VAL);                 \
+                snprintf(event_storage, sizeof(event_storage),          \
+                         "%s[%d]", #type, len);                         \
+                ret = trace_define_field(event_call, event_storage, #item, \
                                  offsetof(typeof(field), item),         \
                                  sizeof(field.item),                    \
                                  is_signed_type(type), FILTER_OTHER);   \
-        if (ret)                                                        \
-                return ret;
+                mutex_unlock(&event_storage_mutex);                     \
+                if (ret)                                                \
+                        return ret;                                     \
+        } while (0);
 
 #undef __dynamic_array
 #define __dynamic_array(type, item, len)                                       \